b' · 2000. 2. 3. · 6,000 feet asl 5,000' 4,000' 3,000' 6000 feet asl...

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Qpm Qpm Qpm Qpm Qay Qay Qpm Qpm Qay Qpm Qay QHa Qay Qay Qpm Qpm Qpm af af Qpm 1 Qpm Qpm Qpm Qpm Qay Qay Qpm Qpm Qpm Qpm QHa QHa QHa af af af QHa QHa Qpm Qpm Qpm Qpm Qpm Qay Qpm Qpm QHa QHa QHa Qpm Qpm Qay Qay Qpm 1 Qpm AM AM AM AM AM AM AM AM AM AM AM AM QHao QHao Qrm Qrm Qrm Qrp m QHa Qre Qre Qay Qrp sm Qrp sm Qre Qrpm Qrp m Qrm Qrpr 1 Qay Qpm Qay Qpm Qrm Qay QHa QHa Qre QTsa Qpm2 Qpo QHa QHa QHa Qpm 2 Qpo Qay Qre Qrm QHa Qay QHa Qpm QHa QHa Qpm 2 Qpm 1 Qpm 2 Qpm QHa Qay Qpo Qpm 2 (?) Qrp c Qrpm Qrpr 1 Qrp sm Qrp s Qpm 2 (?) Qpm 2 Qre Qrpr 1 Qrp s Qpm C' ˇc Qay Qay QHa Qre Qre Qay Qre Qay Qay Qrm Qre Qay 2 QHa QHa Qrpm Qrp s Qrp m Qrp m Qrp s Qrp s Qrp m Qrp sm Qrpr 1 Qrpr af Qrpr 1 af Qrpr 2 Qrpr Qrpr 1 Qrpr af Qrpr Qrpsm QHa Qay Qrpm Qrp c Qrp sm QHa af daf daf Qay Qay Qrp c Qrp s Qrp s Qrp s daf daf af af af Qrp m Qrp c Qrpc Qrp s Qrp s QHa QHa Qrp m Qrp s QHa QHa daf Qay daf Qay Qay QHa daf Qay Qre QHa Qay af QHa daf daf Qay Qay Qay QHa Qre daf daf daf Qay Qre Qre Qpm Qay Qpm Qpm Qre daf QHa QHa Qay Qpm Qay QHa Qre Qpm1 Qpm 1 Qpm 1 Qay Qay Qay Qpm1 Qpm 1 Qay Qpm 1 af Qpm 2 af af Qpm 2 af QHa Qpm 1 QTsp Qpm 2 Xqs Qpm 2 Qpm 2 Qay Qpm 1 Xqs Qpo QTsp(?) Qpm Qpm Qpm Qpm Qay Qay Qpm Qpm Qay Qpm Qay QHa Qay Qay Qpm Qpm Qpm af af Qpm 1 Qpm Qpm Qpm Qpm Qay Qay Qpm Qpm Qpm Qpm QHa QHa QHa af af af QHa QHa Qpm Qpm Qpm Qpm Qpm Qay Qpm Qpm QHa QHa QHa Qpm Qpm Qay Qay Qpm 1 Qpm AM AM AM AM AM AM AM AM AM AM AM AM QHao QHao Qrm Qrpm QHa Qre Qre Qrp sm Qrp sm Qre Qrpm Qrp m Qrpr 1 Qay Qpm Qay Qpm Qrm Qay QHa QHa Qre QTsa Qpm2 Qpo QHa QHa QHa Qpm 2 Qpo Qay Qre Qrm QHa Qay QHa Qpm QHa QHa Qpm 2 Qpm 1 Qpm 2 Qpm QHa Qay Qpo Qpm 2 (?) Qrp c Qrpm Qrpr 1 Qrp sm Qrp s Qpm 2 (?) Qpm 2 Qre Qrpr 1 Qrp s Qpm Qrp m Qrp s Qrpr 2 Qrpr 2 Qrpr 2 QHa Qrp c Qrpm Qrp m QHa Qrp s Qrpm Qre QTsa u QTsa u Qrm Qre Qre af QHa QHa Qay QHa Qpm Qre Qre Qrm Qrm Qpm1 Qpm 1 Qay af af af af af af af af af af af af af af af af af af af QHa af af Qpm 1 Qpm 1 QHa QHa Qpo af QHa Qpo Je? Qpo Qpo Xqs Qpo QTsp(?) af QHa af af Qay af af af af af af Qpm QHa Qre QHa Qay QTsa? Qrp m Qrp s Qpm 1 Qpm 2 Qpm 2 Qpm 2 Qpm 2 Qpm 1 Qpm 2 Qpm 2 Qpm 2 QTsa? QTob? QTsa? Qpo Xqs Ys Ys ˇc ˇc QHa QHa Qpm Qpm QHa Qpm QHa Qpm QHa Qpm Qpm Qre QHa Qrp m Qrp s Qrpr 2 Qrpr 2 Qrpr 2 QHa Qrp c Qrpm Qrp m QHa Qrp s Qrpm QTsa u QTsa u Qrm Qre Qre af QHa QHa Qay QHa Qpm Qre Qre Qrm Qrm Qpm 1 Qpm 1 Qay af af af af af af af af af af af af af af af af af af af QHa af af Qpm 1 Qpm 1 QHa QHa Qpo af QHa Qpo Je? Qpo Qpo Xqs Qpo QTsp(?) af QHa af af Qay af af af af af af Qpm QHa Qre Qay Qrpm Qrp s Qpm 1 Qpm 2 Qpm 2 Qpm 2 Qpm 2 Qpm 1 Qpm 2 Qpm 2 Qpm 2 QTsa? QTob? QTsa? Qpo Xqs Ys Ys QHa QHa DD1 SPU3 Mo5A VA3 VA5 VA1 VA4 VA2 Ly3 Ly4 Ly1 Th5 Th3 Th1 Th4 Th2 Po2 Po3 Po4 Po6 Po1 SCS MW3E PNM-R Cr2 Cr1 We1 We2 No2 NEP Wa2 Wa1 ? ? Jaral fault S a n d ia f a u lt - L a Cueva fa ult R i n c o n f a u l t ? ? Sandia fault - East Embudo strand E ast H e igh ts fault zone -Alameda strand Po5 Po9 VA6 La1 La8 La2 La5 La4 La3 La6 EASTERN LIMIT OF RIO GRANDE TERRACES U D ? U D ? ? ? U D U D ? ? U D ? U D U D T r a m w ay Blv d. str an d Sandia fault - West Embudo strand U D East H e ights fault zone -Eubank Blvd. strand E ast H eights fault z o ne - Coron a do stra n d ? SPW U D U D U D ? U D E A S T E RN L IM IT OF AXIA L L IT HOFAC IES NMBMMR Open File Map Series OF–GM–10 Map last modified 2 February 2000 G EOLOGIC C ROSS S ECTIONS UNIT DESCRIPTIONS EXPLANATION OF MAP SYMBOLS NEW MEXICO BUREAU OF MINES AND MINERAL RESOURCES A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Geology of Alameda quadrangle, Bernalillo and Sandoval Counties, New Mexico by Sean D. Connell May 1997 2 February 2000 Revision New Mexico Bureau of Mines and Mineral Resources, Socorro, NM 87801 Albuquerque Field Office, Albuquerque, NM 87106 (ALBUQUERQUE EAST) GN MN 0° 54' 16 MILS 12.5° 222 MILS UTM GRID AND 1972 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET 35°07'30" 106°37'30" T. 11 N. (ALBUQUERQUE WEST) T. 10 N. 3 53 INTERSTATE 40 1.4 MI. R. 3 E. R. 4 E. 35' 3 58 3 59 32'30" NEW MEXICO QUADRANGLE LOCATION 3 62 000m E. 35°07'30" 106°30' (TIJERAS) T. 11 N. T. 10 N. 38 89 38 90 38 91 38 92 38 93 38 96 38 99 39 00 10' (SANDIA CREST) 12'30" 35°15' 106°30' (PLACITAS) ALAMEDA QUADRANGLE NEW MEXICO 1 540 000 FEET 390 000 FEET 106°37'30" 3 53 000m E. 3 55 35' 3 59 32'30" 3 85 000m E. 38 89 38 90 38 92 38 96 38 97 38 99 10' 12'30" 35°15' Base from U.S. Geological Survey 1960, photorevised 1967 and 1972 Polyconic projection, 1927 North American datum 10,000-foot grid based on New Mexico coordinate system, cental zone1000-meter Universal Transverse Mercator grid ticks, zone 13, shown in blue S. D. Connell: mapping, Phanerozoic stratigraphy and regional structural interpretation refined from borehole data analyses, unit descriptions and correlations, and structural cross sections A-A' and B-B' (cross section B-B' modified from Hawley and Whitworth, 1996); geology depicted in areas of disturbance (af) taken from Lambert (1968, scale of 1:48,000); Proterozoic geology taken from Hayes (1951) due to lack of accessibilty D. J. McCraw and G. E. Jones: digital cartographic production 3 61 3 60 (BERNALILLO) 39 01 000m N. (LOMA MACHETE) T.12 N. T.11 N. (LOS GRIEGOS) A B' 1 0.5 0 1 MILE 1000 0 1000 2000 3000 4000 5000 6000 7000 FEET 1 0.5 0 1 KILOMETER NATIONAL GEODETIC VERTICAL DATUM OF 1929 CONTOUR INTERVAL 10 FEET SCALE 1:24,000 B A' 3 54 CENTRAL AVE. (US 66) 3.3 MI. 3 56 CENTRAL AVE. (US 66) 3.5 MI. 3 60 3 61 38 88 000m N. 38 94 39 01 T. 12 N. T. 11 N. 3 63 420 000 FEET SANTA FE 47 MI. R. 3 E. R. 4 E. BERNALILLO 3.8 MI. NM 44 6.6 MI. 3 54 39 00 NM 194 2.5 MI. NM 194 0.6 MI. ALBUQUERQUE 6.8 MI. 38 93 1 510 000 FEET 4th ST. (US 85) 0.6 MI. Mapping of this quadrangle was funded by a matching-funds grant from the 1997 STATEMAP program of the National Geologic Mapping Act coordinated by the U.S. Geological Survey and the New Mexico Bureau of Mines and Mineral Resources. C R EFERENCES B' B W E Cross sections are constructed based upon the interpretations of the authors made from geologic mapping, and available geophysical (regional gravity and aeromagnetic surveys), and subsurface (drillhole) data. Cross sections should be used as an aid to understanding the general geologic framework of the map area, and not be the sole source of information for use in locating or designing wells, buildings, roads, or other man-made structures. A' E A W C' N C S MW3E Interstate 25 Cr2 Cr1 We2 We1 Wa2 Wa1 6,000 feet ASL 5,000' 4,000' 3,000' 6000 feet ASL 5,000' 4,000' 3,000' QTsp Qp QTsp QTsa QTsa QTsa Qp Qpr Vertical Exaggeration = 2x PNM-R2 E XPLANATION OF GEOPHYSICAL L OGS East Heights fault zone SPU3 QTsp QTsp Coronado strand Alameda strand Eubank Blvd. strand West Embudo strand Sandia fault zone East Embudo strand Qp QTsa 2 Toa Tsal QTsa1 QTsa 2 QTsa 1 Tsal Toa QTsa QTsa QTsa 2 QTsa 1 Tsal Toa QTsa QTsa Toa Tsal QTsa 2 Qrp 6000 feet ASL 5,000' 4,000' 3,000' 2,000' 1,000' Mo5a ? ? Qpr Tsal Toa QTsa QTsa2 QTsa1 VA3 VA1 VA4 Qpr Toa QTsa QTsa Toa ? ? Toa? QTsa QTsp Tsal ? Th3 Th5 Th2 Po2 Po1 QTsp TKu Ly4 Ly1 Ly3 6000 feet ASL 5,000' 4,000' 3,000' 2,000' 1,000' East Heights fault zone Coronado strand Alameda strand Eubank Blvd. strand West Embudo strand Sandia fault zone Qp QTsp QTsp QTsp-Tsal(?) QTsa QTsa QTsa QTsa QTsa 2 QTsa 1 QTsa QTsa QTsa QTsa QTsa 2 QTsa 1 QTsa QTsa 1 QTsa 2 Tsal Tsal Ly3 SPW TD 5024 ft ? QTsp BT No2 We2 We1 (projected) NEP projection of Sunport geomorphic surface 6000 feet ASL 5,000' 4,000' 3,000' 2,000' 6000 feet ASL 5,000' 4,000' 3,000' 2,000' East Heights fault zone Coronado strand Alameda strand Eubank Blvd. strand Tramway Blvd. Cross Section B-B' Cross Section A-A' Cr2 (projected) SC S (projected) Th5 (projected) QTsa QTsa 2 QTsa1 Tsal Toa QTsa QTsa Toa? Qp-QTsp QTsa QTsa2 QTsa 1 Tsal QTsa Toa? Qp-QTsp QTsa QTsa1 Tsal ? Toa? Qp-QTsp QTsa Tsal Vertical Exaggeration = 2x TKu Silt Clay ? ? ? ? ? QTsa QTsp Qp QTsp QTsa QTsa QTsa Qp Qpr QTsp QTsp Qp QTsa2 Toa Tsal QTsa1 QTsa 2 QTsa 1 Tsal Toa QTsa QTsa QTsa 2 QTsa 1 Tsal Toa QTsa QTsa Toa Tsal QTsa 2 Qrp Qpr Tsal Toa QTsa QTsa2 QTsa1 Qpr Toa QTsa QTsa Toa Toa? QTsa QTsp Tsal QTsp TKu Qp QTsp QTsp QTsp-Tsal(?) QTsa QTsa QTsa QTsa QTsa 2 QTsa 1 QTsa QTsa QTsa QTsa QTsa 2 QTsa 1 QTsa QTsa 1 QTsa 2 Tsal Tsal TD 5024 ft QTsp BT projection of Sunport geomorphic surface QTsa QTsa 2 QTsa1 Tsal Toa QTsa QTsa Toa? Qp-QTsp QTsa QTsa2 QTsa 1 Tsal QTsa Toa? Qp-QTsp QTsa QTsa1 Tsal Toa? Qp-QTsp QTsa Tsal TKu QTsa 0 100 200 Electrical Conductivity (mmhos/m) 225 Gamma Ray (GAPI) 0 100 200 Electrical Conductivity (mmhos/m) 225 Gamma Ray (GAPI) Qrpr 1 Qrpr 2 Qrp Qrpc Qrm Qre Qp Qay2 CENOZOIC ERATHEM Neogene (Quaternary and Tertiary) System Colluvial, landslide, eolian, and anthropogenic deposits Thin surficial deposits derived from wind and mass-movement processes, or extensive areas disturbed by open- pit aggregate mining or construction. Artificial fill (Historic) — Dumped fill and areas affected by human disturbances, including levees bordering the Rio Grande. Locally mapped where areally extensive or geologic contacts are obscured. . Disturbed land and artificial fill, undivided (Historic) — Dumped fill and areas affected by open-pit aggregate mining or construction. Locally mapped where disturbance is areally extensive or geologic contacts are obscured. . Alluvium of the Rio Grande Fluvial deposits derived from the ancestral and modern Rio Grande that unconformably overlie fluvial deposits and eastern basin-margin deposits of the upper Santa Fe Group (QTsa and QTsp). Subdivided into three formations on the basis of inset relationships. Las Padillas Formation (Historic to uppermost Pleistocene) — Unconsolidated to poorly consolidated, pale-brown (10YR), fine- to coarse-grained sand and rounded gravel with subordinate lensoidal interbeds of fine-grained sand, silt, and clay derived from the Rio Grande. Recognized in drillholes and named for deposits underlying the broad inner valley floodplain near the community of Las Padillas in southwest Albuquerque (Connell et al., 1998b). Unconformably overlies upper Santa Fe Group deposits and is commonly gravelly at the base. Probably interfingers with stream alluvium (QHa and Qay). Deposit surface (top) comprises the modern surface of aggradation for the Rio Grande. Surficial deposits (< 6 ft [2 m] thick) are divided into a modern river channel, and four textural subunits based on interpretations of soil series described and mapped by Hacker (1977). Approximately 50-80 ft (15-24 m) thick. Modern channel deposits (Historic) — Unconsolidated sand and gravel within the active channel of the Rio Grande. Delineated using aerial photography and divided into older (Qrpr 1 ) and younger (Qrpr 2 ) subunits based upon inset relationships. Gravelly to sandy stream and floodplain deposits (Historic) — Unconsolidated coarse-grained sand and pebbly sand. Interpreted to represent channel deposits. Includes Brazito series of Hacker (1977). Sandy stream and floodplain deposits (Historic) — Unconsolidated medium-grained sand and loamy sand. Interpreted to represent channel and floodplain deposits. Includes Vinton series of Hacker (1977). Silty to sandy stream and floodplain deposits (Historic) — Unconsolidated fine-grained sand, silt and clay. Interpreted to represent fine-grained sloughs or oxbows. Includes Glendale and Gila series of Hacker (1977). Silty to clayey stream and floodplain deposits (Historic) — Unconsoldiated fine-to medium-grained sand, silt and slay. Interpreted to represent fine-grained floodplain deposits. Includes Anapra, Armijo, Agua, and Gila series of Hacker (1977). Menaul Formation (upper to upper-middle Pleistocene) — Poorly consolidated deposits of yellowish- brown (10YR) pebble gravel and pebbly sand derived from the ancestral Rio Grande. Named by Lambert (1968) for exposures along Menaul Blvd. Gravel clasts are dominated by rounded quartzite pebbles that are generally smaller in size than pebbles and cobbles in the Edith Formation (Qre). Discontinuously (probably lensoidal) exposed along the eastern escarpment of the inner valley of the Rio Grande. The basal contact is approximately 85-118 ft (26-36 m) above the top of the Las Padillas Formation (Qrp, Rio Grande floodplain), and is unconformably overlain by younger stream alluvium (Qay). Thickness is generally less than 10 ft (3 m). Edith Formation (middle Pleistocene) — Poorly to moderately consolidated, locally cemented deposits of pale-brown to yellowish-brown (10YR) gravel, sand and sandy clay derived from the ancestral Rio Grande. Named by Lambert (1968) for exposures along Edith Boulevard and the eastern escarpment of the inner valley of the Rio Grande. Gravel clasts contain abundant rounded quartzite and volcanic rocks with minor granite, metamorphic sandstone, and very rare (commonly welded) Bandelier Tuff. Comprises an upward-fining sequence containing a basal, quartzite-rich cobble gravel that grades upsection into silty sand. Unconformably overlies upper Santa Fe Group deposits, and is unconformably overlain by eastern-margin piedmont alluvium (Qpm) and younger stream alluvium (Qay). Unit Qay buries the Edith Formation south of the Jaral Canyon arroyo. To the north, unit Qay is inset against the Edith Formation. Basal contact is approximately 40-80 ft (12-24 m) above the top of the Las Padillas Formation (Qrp, Rio Grande floodplain), and maybe warped down to the southwest by up to 45 ft (14 m) across the Alameda strand of the East Heights fault zone. Gravel pits (within daf) yielded late to middle Pleistocene Rancholabrean fossils (Lambert, 1968; Lucas et al., 1988). Moderately developed soils on overlying eastern-margin piedmont alluvium (Qpm) suggest a middle Pleistocene age for unit. Variable thickness, ranging from 10-40 ft (3 to 12 m). Stream-valley and eastern-margin piedmont alluvium Divided into stream-valley alluvium and eastern-margin piedmont alluvium. Stream-alluvium typically contain poorly to well sorted, poorly to well stratified, clast- and matrix-supported deposits associated with modern and late Pleistocene entrenched arroyos across the map area. Eastern-margin piedmont alluvium contains generally poorly sorted, poorly stratified, clast- and matrix-supported deposits having angular to subangular clasts of granitic, metamorphic, sandstone, and minor limestone derived from the western and northern slopes of the Sandia Mountains and eastern basin margin. . Piedmont and stream alluvium, undivided (Historic to middle Pleistocene) — Cross section only. Undivided deposits of stream-valley alluvium (QHa and Qay) and eastern-margin piedmont alluvium (Qpm). . Fluvial deposits, piedmont alluvium, and stream alluvium, undivided (Historic to middle Pleistocene) — Cross section only. Undivided Las Padillas, Menaul, and Edith formations (Qrp, Qrm, and Qre, respectively), stream-valley (QHa and Qay), and eastern-margin piedmont alluvium (Qpm). . Youngest stream alluvium (Historic to Holocene) — Unconsolidated deposits of brown, light gray-brown, and yellowish-brown (10YR) sand, silty to clayey sand, and gravel. Underlies arroyos, inset against younger stream alluvium (Qay), and probably interfingers with the Las Padillas Formation (Qrp). Very weakly developed soils exhibit no pedogenic carbonate at the surface and weak Stage I carbonate morphology at depth. Forms extensive valley border alluvial fans along the margins of the inner valley of the Rio Grande. These valley border alluvial fans may locally contain hydrocollapsible soils. Correlative to geomorphic surfaces Q8-Q9 of Connell (1995, 1996). Variable thickness, ranging up to 50 ft (15 m). Younger stream alluvium (Holocene to uppermost Pleistocene) — Poorly consolidated deposits of pale- brown to light-brown (7.5-10YR) sand to sandy clay loam and gravel. Inset against eastern-margin piedmont alluvium (Qpm). Distal margin is truncated at the eastern escarpment of the inner valley of the Rio Grande. Surface is slightly dissected and possesses weakly developed soils with Stage II carbonate morphology. Locally includes undivided stream alluvium (QHa) in narrow arroyos. Underlies entrenched stream valleys on the piedmont slope. These arroyo valley deposits grade west into older alluvial fans that mark the position of an older valley border. These alluvial fans may locally contain hydrocollapsible soils. Locally subdivided into older (Qay 1 , on adjacent Bernalillo Quadrangle, Connell, 1998) and younger (Qay 2 ) deposits on the basis of inset relationships. Deposits along the northwestern margin of map area consist of sandy alluvium with scattered gravel lenses derived from the Arroyo de las Calabacillas drainage. This deposit contains clasts of red granite, chert, and basalt derived from the western margin of the basin.Correlative to geomorphic surface Q8 of Connell (1995, 1996). Variable thickness, ranging up to 20 ft (6 m). Middle eastern-margin piedmont alluvium, undivided (upper to middle Pleistocene) — Poorly to moderately consolidated deposits of very pale-brown to strong-brown and light-gray (7.5-10YR) sand and silty to clayey sand, and gravel. Inset against older eastern-margin piedmont alluvium (Qpo), unconformably overlies the Edith Formation (Qre), and is inset by younger stream alluvium (Qay). Gravel clasts are predominantly subangular granite and schist with minor subrounded limestone derived from the western front of the Sandia Mountains and Rincon Ridge. Slightly to moderately dissected deposit surface exhibits subdued constructional bar-and-swale topography on interfluves. Weakly developed soils exhibit Stage II to III+ carbonate morphology and minor to moderate clay film development. Locally divided into two subunits. Variable thickness, ranging up to 140 ft (43 m). Younger subunit (upper to middle Pleistocene) — Moderately consolidated deposits of very pale- brown to strong yellowish-brown (7.5-10YR), poorly to moderately stratified and sorted, silty clay and loamy sand and gravel. Inset against older piedmont subunit (Qpm 1 ), and conformably overlies the Menaul Formation (Qrm). Deposit surface along the mountain front is slightly to moderately dissected and exhibits subdued bar and swale topography on interfluves. Deposit surface (top) is deeply dissected along the eastern escarpment of the inner valley of the Rio Grande. Soils are moderately developed and possess Stage II carbonate morphology and few to common, thin to moderately thick clay films. Geomorphic surface Q7 of Connell (1995, 1996). Geologic cross section. Geologic contact—Solid where exposed; dashed where approximately located; dotted where concealed; queried where inferred. Geologic contact—Interpreted location within units af and daf; modified from Lambert (1968) or interpreted using vintage aerial photography. Approximate location of buried contact separating the ancestral Rio Grande axial-fluvial deposits (QTsa) and eastern basin-margin piedmont deposits (QTsp) of the upper Santa Fe Group. . Approximate extent of buried fluvial terrace risers of the ancestral Rio Grande (post Santa Fe Group)—Hachured towards fluvial terraces; Edith Formation (double hachured line). Fault—Tick showing dip; solid where exposed, dashed where approximately located, dotted where concealed; ball and bar on downthrown side, upthrown (U) side differentiated from downthrown (D) side where concealed. . Approximate trace of degraded fault scarp. Strike and dip of bedding. Pegmatite dike, tick showing dip. Dominant tectonic foliation or gneissic foliation, if chronology of fabric is unknown. . Aeromagnetic anomaly (interpreted from U.S. Geological Survey and Sial Geosciences, Inc., 1998). Water-supply well, including abbreviation. Exploratory or groundwater monitoring well, including abbreviation. Narruss Realty No. 2 oil test well Water table; approximate elevation (cross sections only). Lowest occurrence of probable Bandelier Tuff clasts in borehole (cross section only). . A geologic map displays information on the distribution, nature, orientation and age relationships of rock and deposits and the occurrence of structural features. Geologic and fault contacts are irregular surfaces that form boundaries between different types or ages of units. Data depicted on this geologic quadrangle map are based on reconnaissance field geologic mapping, compilation of published and unpublished work, and photogeologic interpretation. Locations of contacts are not surveyed, but are plotted by interpretation of the position of a given contact onto a topographic base map; therefore, the accuracy of contact locations depends on the scale of mapping and the interpretation of the geologist(s). Lambert (1968) produced a geologic map (scale 1:48,000) of the region prior to significant ground disturbance. Portions of Lambert’s map are incorporated where surface disturbance is significant. The geology of areas of extensive ground disturbance have been evaluated using aerial photography (1935, 1951, 1973, and 1996 vintages). Any enlargement of this map could cause misunderstanding in the detail of mapping and may result in erroneous interpretations. Site-specific conditions should be verified by detailed surface mapping or subsurface exploration. Topographic and cultural changes associated with recent development may not be shown. Subdivision of the Las Padillas Formation was made using geologic interpretations of (shallow) soil survey data published by the Soil Conservation Service (Hacker, 1977). The map has not been reviewed according to New Mexico Bureau of Mines and Mineral Resources standards. Revision of the map is likely because of the on-going nature of work in the region. The contents of the report and map should not be considered final and complete until reviewed and published by the New Mexico Bureau of Mines and Mineral Resources. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the State of New Mexico and the U.S. Government. Allen, B. D., Connell, S. D., Hawley, J. W., and Stone, B. D., 1998, Core drilling provides information about Santa Fe Group aquifer beneath Albuquerque’s west side: New Mexico Geology, v. 20, n. 1., p. 8-13. Bexfield, L. M., 1998, Proposed expansion of the City of Albuquerque/U.S. Geological Survey Ground-water- level monitoring network for the Middle Rio Grande Basin, New Mexico: U.S. Geological Survey, Open- File Report 97-787, 21 p. 2 pl. Brookins, D. G., 1982, Radiometric ages of Precambrian rocks from central New Mexico, in: Wells, S. G., and Grambling, J. A., eds., Albuquerque country II: New Mexico Geological Society Guidebook 33, p. 187- 189. Connell, S. D., 1995, Quaternary geology and geomorphology of the Sandia Mountains piedmont, Bernalillo and Sandoval Counties, central New Mexico: [M.S. Thesis] Riverside, University of California, 390 p., 3 pl. Connell, S. D., 1996, Quaternary geology and geomorphology of the Sandia Mountains piedmont, Bernalillo and Sandoval Counties, central New Mexico: New Mexico Bureau of Mines and Mineral Resources Open- File Report 425, 414 p., 3 pl. (open-file release of Connell, 1995). Connell, S. D., and Heynekamp, M., 1998, Field boring log for Sandia Pueblo Well, City of Albuquerque piezometer nest, FY 1998: New Mexico Bureau of Mines and Mineral Resources, Open-File Report 444A, 7 p, 2 ap. Connell, S. D., Allen, B. D., and Hawley, J. W., 1998a, Subsurface stratigraphy of the Santa Fe Group using borehole geophysics, Albuquerque area, central New Mexico: New Mexico Geology, v. 20, n. 1, p. 2- 7. Connell, S. D., Allen, B. D., Hawley, J. W., and Shroba, R. S., 1998b, Geology of the Albuquerque West 7.5- minute quadrangle, Bernalillo County, New Mexico: New Mexico Bureau of Mines and Mineral Resources, Open-File Report DM-17 , scale: 1:24,000. Groundwater Management, Inc., 1988a, Pumping test data analysis, Leyendecker well field, City of Albuquerque, New Mexico: Kansas City, KS, 66106, 64p. Groundwater Management, Inc., 1988b, Pumping test data analysis, Ponderosa well field, City of Albuquerque, New Mexico: Kansas City, KS, 66106, 92p. Groundwater Management, Inc., 1988c, Pumping test data analysis, Thomas well field, City of Albuquerque, New Mexico: Kansas City, KS, 66106, 67p. Groundwater Management, Inc., 1988d, Pumping test data analysis, Vol Andia well field, City of Albuquerque, New Mexico: Kansas City, KS, 66106, 80p. Hacker, L. W., 1977, Soil survey of Bernalillo County and parts of Sandoval and Valencia County, New Mexico: U.S. Department of Agriculture, Soil Conservation Service. Hayes, P. T., 1951, Geology of the Pre-Cambrian rocks of the northern end of the Sandia Mountains, Bernalillo and Sandoval Counties, New Mexico [M.S. Thesis]: Albuquerque, University of New Mexico, 54 p. Jackson, P. B., Connell, S. D., Hawley, J. W., Chamberlin, R. M., and Allen, B. D., 1998, Field logs of boreholes for nested piezometers, Noreste Park site, City of Albuquerque: New Mexico Bureau of Mines and Mineral Resources, Open-File Report 444B, 28 p., 1 ap. John Shomaker and Associates, Inc., 1990, Well report, City of Albuquerque, Thomas No. 5: Albuquerque, NM. Johnson, P., Connell, S. D., and Allred, B., 1997, Field boring log for Sister Cities Park, City of Albuquerque piezometer nest, FY 1996: New Mexico Bureau of Mines and Mineral Resources, Open-File Report 426A, 22 p. Kelley, V. C., and Northrop, S. A., 1975, Geology of the Sandia Mountains and vicinity: New Mexico Bureau of Mines and Mineral Resources Memoir 29, 136p. Kelley, V. C., 1977, Geology of the Albuquerque basin, New Mexico: New Mexico Bureau of Mines and Mineral Resources Memoir 33, 60p. Lambert, P. W., 1968, Quaternary stratigraphy of the Albuquerque area, New Mexico [Ph.D. dissertation]: Albuquerque, University of New Mexico, 329p. Lozinsky, R. P., 1994, Cenozoic stratigraphy, sandstone petrology, and depositional history of the Albuquerque basin, central New Mexico, in: Keller, G. R., and Cather, S. M., eds., Basins of the Rio Grande rift: Structure, Stratigraphy, and Tectonic setting: Geological Society of America, Special Paper 291, p.73-82. Lucas, S. G., Williamson, T. E., and Sobus, J., 1988, Late Pleistocene (Rancholabrean) mammals from the Edith formation, New Mexico: New Mexico Journal of Science, v. 28, n. 1, p. 51-58. . Lucas, S. G., Williamson, T. E., and Sobus, J., 1993, Plio-Pleistocene stratigraphy, paleoecology, and mammalian biochronology, Tijeras Arroyo, Albuquerque area, New Mexico: New Mexico Geology, v. 15, no. 1, p. 1-8. Machette, M. N., 1978, Geologic map of the San Acacia Quadrangle, Socorro County, New Mexico: U.S. Geological Survey, Geologic Quadrangle Map GQ-1415, scale 1:24,000. U. S. Geological Survey and Sial Geosciences, Inc., 1998, Description of digital aeromagnetic data collected north and west of Albuquerque, New Mexico: U. S. Geological Survey Open-File Report 97-286. Van Hart, D., 1999, Geology of Mesozoic sedimentary rocks in the Juan Tabó area, northwest Sandia Mountains, Bernalillo County, New Mexico: New Mexico Geology, v. 21, no. 4, p. 104-111. af daf Qrps Qrp sm Qrp m Qpr QHa Qay Qpm Qpm2 Qpm 1 Qpo QTsa QTsa u QTsa 2 QTsa 1 QTsp QTob Toa Tsal TKu Je ˇc Older subunit (middle Pleistocene) — Moderately consolidated deposits of light- to strong-brown (7.5YR) and very pale-brown to light-gray (7.5-10YR), poorly to moderately stratified and sorted, sand clayey sand and gravel. Unconformably overlies the Edith Formation (Qre). Subdued bar-and-swale constructional topography is locally preserved on broad weakly dissected interfluves. Dissected deposit surface (top) commonly exhibits erosional ridge-and-ravine topography. Moderately well developed soils with Stage III+ carbonate morphology and many moderately thick clay films. Geomorphic surface Q6 of Connell (1995, 1996). Older eastern-margin piedmont alluvium (middle to lower Pleistocene) — Consolidated deposits of yellowish-brown (10YR), poorly sorted and stratified, gravel and sand with minor, thin silty-clay interbeds. Gravel clasts are predominantly subangular granite and schist with minor subrounded limestone. Granite clasts are commonly pitted, and schist clasts are typically weathered and split. Variable thickness, ranging to at least 60 ft (18 m). Upper Santa Fe Group Axial-fluvial deposits of the ancestral Rio Grande, undivided (lower Pleistocene to Pliocene) — Consolidated and locally cemented, very pale-brown to yellowish-brown (10YR) sandstone and conglomerate deposited by the ancestral Rio Grande. Gravel clasts are predominantly rounded quartzite and volcanic rocks with minor granite and basalt. Dominantly sandstone with interbedded pebbly to cobbly conglomerate, but generally coarsens upsection with cobble conglomerate beds common near the top. Interfingers with upper Santa Fe Group eastern basin-margin piedmont deposits (QTsp) to the east. May be correlative with axial- stream deposits of the Sierra Ladrones Formation (Machette, 1978) described along the southern margin of the Albuquerque Basin. High hydraulic conductivity where saturated. Subdivided into an upper, pumiceous unit (QTsa u ) on map. Subdivided into upper (QTsa 2 ) and lower (QTsa 1 ) silty sandstone marker beds on cross sections. Base not exposed but interpreted to be at least 2,000 ft (610 m) thick in drillholes. . . Upper pumice-bearing axial-fluvial deposits (lower Pleistocene) — Very pale-brown to yellowish- brown (10YR), pumiceous sand and pebbly to cobbly sand deposits by the ancestral Rio Grande. Gravel clasts are predominantly rounded pumice, quartzite and volcanic rocks, with minor chert, granite, and metamorphic rocks. Pumice clasts are derived from the ca. 1.61 Ma lower Bandelier Tuff (Lambert, 1968; W.C. McIntosh, 1997, personal communication). Medium-to coarse-grained, euhedral, bipyramidal quartz grains are locally abundant. Bedding is subhorizontal, and commonly cross stratified. Minor silty sand beds are discontinuous and range in color from light brown to grayish green. Approximately 210 ft (65 m) thick at Tijeras Arroyo (Lucas et al., 1993). Upper sandy mudstone marker bed (Pliocene) — Cross section only. Muddy sandstone and sandy mudstone recognized by laterally correlative zones of relatively low resistivity (high electrical conductivity) on borehole geophysical logs. Approximately 150-200 ft (45-60 m) thick and about 100 ft (30 m) above the lower marker bed (QTsa 1 ). . Lower sandy mudstone marker bed (Pliocene) — Cross section only. Muddy sandstone and sandy mudstone recognized by laterally correlative zones of relatively low resistivity (high electrical conductivity) on borehole geophysical logs. Approximately 100-150 ft (32-45 m) thick. Piedmont deposits (lower Pleistocene to Miocene) — Subhorizontally stratified to slightly east-tilted, reddish- brown to yellowish-brown and very pale-brown (7.5-10YR) conglomerate, gravelly sandstone, and sandstone with subordinate siltstone and rare mudstone. Conglomerate clasts are predominantly composed of subangular to subrounded granite with subordinate metamorphic rocks, and minor subrounded limestone. May be correlative with piedmont-slope and alluvial fan deposits of the Sierra Ladrones Formation (Machette, 1978) exposed at the southern margin of the Albuquerque Basin. Interfingers with axial-fluvial deposits (QTsa) to the west. Moderate to low estimated hydraulic conductivity. Thickness is variable and estimated to range from 2,000- 7,000 ft (610-2,135 m). Arroyo Ojito Formation, Loma Barbon Member (lower Pleistocene to upper Miocene) — Well consolidated, weakly to moderately cemented, yellowish-brown to yellowish-red and reddish-brown (5-10YR), fine-grained silty sandstone with interbedded mudstone and scattered, lensoidal, weakly to well cemented, conglomeratic sandstone interbeds. Deposits are tentatively correlated to the Loma Barbon Member on the basis of reddish-brown color and correlation to Lambert’s (1968) middle red formation. Shown as queried deposit (Sections 25 and 36, T12N, R3E) because of restricted access to existing exposures. The Loma Barbon Member interfingers with fluvial deposits of the ancestral Rio Grande (QTsa) on adjacent quadrangles (Connell, 1998; Connell et al., 1998b). Estimated thickness is over 1,400 ft (>425 m). . Arroyo Ojito Formation, Atrisco Member (Pliocene) — Cross section only. Moderately to well consolidated, locally cemented succession of yellowish-brown to yellowish-red (2.5-10YR), fine-grained silty sandstone and mudstone (Allen et al., 1998). Named for deposits beneath the Town of Atrisco Grant (Connell et al., 1998a), where it is recognized in the subsurface by a laterally extensive interval of high electrical conductivity (low electrical resistivity) on borehole geophysical logs (Connell et al., 1998a, b). Borehole geophysical logs indicate that the upper contact is conformable and gradational with the overlying fluvial deposits (QTsa), and marks the base of an upward-coarsening megasequence that culminates in dominantly gravelly sand of the axial- fluvial deposits of the upper Santa Fe Group (QTsa and QTsa u ). Fine-grained and difficult to determine provenance; however, the lateral continuity of unit, as interpreted from geophysical correlations (Connell et al., 1998a, b), suggest that this unit may be correlative to the Arroyo Ojito Formation, exposed west of the map area. Thus, this member is provisionally assigned to the Arroyo Ojito Formation. Subsurface data indicates that unit is approximately 280-330 ft (85-100 m) thick (Connell et al., 1998a). Lower fluvial deposits (Pliocene to upper Miocene) — Cross section only. Fine-to coarse-grained sandstone with interbedded compact clay and rare scattered pebbly sandstone interbeds. Regional borehole geophysical log correlations (Connell et al., 1998a,b) suggests that unit pinches out to the east into eastern basin-margin piedmont deposits of the upper Santa Fe Group (QTsp). May be correlative to piedmont-slope and alluvial fan deposits of the Sierra Ladrones Formation (Machette, 1978) exposed at the southern margin of the Albuquerque Basin. May include undivided western basin-margin deposits of the Arroyo Ojito Formation. Base not exposed, but regional thickness is estimated to be greater than 2,000 ft (610 m) thick in drillholes. Paleogene and Cretaceous Systems Lower Tertiary and Cretaceous sedimentary rocks, undivided (Paleogene-Cretaceous) — Cross section only. Undivided lower Tertiary (probably Galisteo Formation and Lozinsky’s (1994) “Unit of Isleta No. 2”) and Cretaceous deposits. . MESOZOIC ERATHEM Jurassic and Triassic Systems Entrada Formation — An inlier of yellowish-brown, moderately sorted, fine-medium-grained sandstone. Poorly exposed on the hangingwall of the Rincon fault (Section 28, T12N, R4E). Stratigraphic position is ambiguous, but unit is tentatively correlated to the Entrada Formation based on sandy texture and color. Chinle Group, undivided — Reddish-brown mudstone and yellowish-brown sandstone, probably correlative to the Petrified Forest Formation (Van Hart, in press). Unit occurs as highly faulted inliers between the Jaral, Rincon, and Sandia faults. PROTEROZOIC ERATHEM Mesoproterozoic igneous rocks Pegmatite dike — Dikes, pods and lenses composed of pegmatite, aplite and quartz formed during emplacement of the Sandia granite at 1,400 Ma (Kelley and Northrop, 1975 and Brookins, 1982). . Sandia granite Mainly megacrystic biotite monzogranite to granodiorite with K-feldspar megacrysts, up to several cm long. Intrudes the metamorphic rocks (Xqs) of Rincon Ridge. Approximately 1,400 Ma (Brookins, 1982). Paleoproterozoic metamorphic rocks Schist, phyllite, quartzite and gneiss — Schist and phyllite with local quartzite and gneiss of the Juan Tabo sequence of Hayes (1951). Xqs Ys Qrpr 1 Qrpr 2 Qrp Qrpc Qrm Qre Qp Qay2 af daf Qrps Qrp sm Qrp m Qpr QHa Qay Qpm Qpm2 Qpm 1 Qpo QTsa QTsa u QTsa 2 QTsa 1 QTsp QTob Toa Tsal TKu Je ˇc Xqs Ys INDEX TO PREVIOUS GEOLOGIC MAPPING Alameda 7.5’ Quadrangle Hacker (1977) Lambert (1968) (entire quadrangle) Hayes (1951); Kelley & Northrop (1975) Connell (1996) Corrales SANDOVAL CO. 25 Pueblo of Sandia Reservation Albuquerque & North Albuquerque Acres BERNALILLO CO. Rio Rancho Rio Grande TURQUOISE HILL OF-DM–41 MADRID OF-DM–49 OF-DM–48 OF-DM–36 LEMITAR ABIQUIU 1:100,000 SAN JUAN PUEBLO LYDEN SANTO DOMINGO PUEBLO SW SANTO DOMINGO PUEBLO TETILLA PEAK CAÑADA COCHITI DAM MONTOSO PEAK HORCADO RANCH FRIJOLES BLAND AGUA FRIA SETON VILLAGE VALLE TOLEDO GUAJE MOUNTAIN PUYE ESPAÑOLA WHITE ROCK LOS ALAMOS 1:100,000 GM–73 OF-DM–23 Los Alamos Santa Fe OF-DM–42 BERNALILLO NW CERRO CONEJO JEMEZ PUEBLO SANTA ANA PUEBLO SAN FELIPE PUEBLO SAN FELIPE PUEBLO NE SAN YSIDRO LOMA CRESTON GILMAN PONDEROSA BEAR SPRINGS PEAK REDONDO PEAK JEMEZ SPRINGS SAN MIGUEL MOUNTAIN PICTURE ROCK CHILI RANCHO DEL CHAPARRAL SEVEN SPRINGS VALLE SAN ANTONIO GM–45 GM–34 GM–27 OF-DM–15 OF-DM–26 OF-DM–25 OF-DM–14 OF-DM–19 OF-DM–37 OF-DM–45 OF-DM–40 COLLIER DRAW OJITO SPRING HOLY GHOST SPRING LA VENTANA SAN PABLO OF-DM–18 GM–33 GM–28 GM–26 (SKY VILLAGE NE) (SKY VILLAGE NW) OF-DM–46 SANDIA CREST PLACITAS BERNALILLO LOMA MACHETE ARROYO DE LAS CALABACILLAS VOLCANO RANCH LA MESITA NEGRA SE LOS GRIEGOS WIND MESA ISLETA HUBBELL SPRING HAGAN SANDIA PARK TIJERAS SEDILLO ESCABOSA MOUNT WASHINGTON SAN FELIPE MESA CAPTAIN DAVIS MOUNTAIN SAN PEDRO EDGEWOOD CHILILI RIO PUERCO LOS LUNAS SE TAJIQUE MILBOURN RANCH DALIES BOSQUE PEAK DALIES NW LA MESITA NEGRA BENAVIDEZ RANCH ESTANCIA MORIARTY SOUTH MORIARTY NORTH KING DRAW BELEN NW TOME TOME NE TORREON EWING BELEN MOUNTAINAIR NE BELEN SW TURN PUNTA DE AGUA MOUNTAINAIR VEGUITA MANZANO PEAK WILLARD ALBUQUERQUE WEST ALBUQUERQUE EAST TOME SE COMANCHE RANCH (SKY VILLAGE SE) (SKY VILLAGE) OF-DM–2 OF-DM–9 OF-DM–10 OF-DM–6 OF-DM–1 OF-DM–29 OF-DM–35 OF-DM–20 OF-DM–4 OF-DM–3 OF-DM–8 OF-DM–5 OF-DM–13 OF-DM–21 OF-DM–28 SOCORRO 1:100,000 ALBUQUERQUE 1:100,000 GOLDEN A l b u q u e r qu e A r e a ALAMEDA CAPILLA PEAK OF-DM–27 LOS LUNAS OF-DM–16 OF-DM–17 OF-DM–24 LA JOYA NW BLACK BUTTE BECKER ABEYTAS SCHOLLE RAYO HILLS CERRO MONTOSO BECKER SW LA JOYA SAN ACACIA SILVER CREEK SAN LORENZO SPRING MESA DEL YESO SIERRA DE LA CRUZ SOCORRO LOMA DE LAS CANAS BUSTOS WELL WATER CANYON LADRON OF-DM–34 OF-DM–38 OF-DM–43 OF-DM–47 TAOS SW CARSON RANCHOS DE TAOS TRES RITOS PEÑASCO TRAMPAS TAOS JUNCTION VELARDE JICARITA PEAK EL VALLE TRUCHAS CHIMAYO LOS CORDOVAS TAOS TRES OREJAS SHADY BROOK PUEBLO PEAK WHEELER PEAK ARROYO SECO ARROYO HONDO CERRO DE LOS TAOSES GM–71 OF-DM–12 OF-DM–33 OF-DM–22 Taos TAOS 1:100,000 McCLURE RESERVOIR ROSILLA PEAK ASPEN BASIN COWLES TESUQUE GLORIETA SANTA FE PECOS LOWER COLONIAS ELK MOUNTAIN HONEY BOY RANCH SIERRA MOSCA CUNDIYO TRUCHAS PEAK PECOS FALLS OF-DM–31 OF-DM–32 OF-DM–7 SANTA FE 1:100,000 ROWE GALISTEO BULL CANYON NORTH SAN YSIDRO OF-DM–11 OF-DM–30 WILDHORSE MESA OJO HEDIONDA RENCONA OF-DM–39 LAGUNA ORTIZ OF-DM–50 Socorro Grants Taos Las Cruces Deming SANTA FE Albuquerque Van Hart (in press) 0 10 20 mi 0 10 30 km 20 I NDEX MAP OF NMBMMR’ S STATEMAP 7.5-MINUTE GEOLOGIC QUADRANGLES 9/ 99 NMBMMR STATEMAP Quadrangles Alameda 68 285 84 285 84 25 40 106°00' 35°00' 34° 22' 30" 34°30' 107°00' 106°30' 36°00' 36°30' 3 285 35°30' 105° 30' 35°15' BELEN 1:100,000 VILLANUEVA 1:100,000 Location Map 37° 35° 33° 109° 107° 105° 103° COMMENTS TO MAP USERS Construction and hydraulic data table for selected wells in the Alameda quadrangle and vicinity. Data interpreted and modified from Bexfield (1998), Connell and Heynekamp (1998), Jackson et al. (1998), Johnson et al. (1996), John Shomaker and Associates (1990), Groundwater Management Incorporated (1988 a,b,c,d), and public-domain well-log reports from the New Mexico Office of the State Engineer. Abbreviations include: multiple screened intervals (M), transmissivity (T), hydraulic conductivity (K), depth below land surface (bls), elevation above mean sea level (amsl), upper piezometer (u), and no data/not determined (nd). Asterisk (*) indicates depth of constructed well, exclusive of pilot-hole depth (i.e., minimum depth of well). Double asterisk (**) indicates stratigraphic interpretation for entire borehole depth. Well Symbol Cr1 Cr2 DD Ly1 Ly3 Ly4 NEP PNM-R2 Po1 Po2 Po3 Po4 Po5 Po6 Po7 Po9 SCS SPU3 SPW Th1 Th2 Th3 Th4 Th5 VA1 VA2 VA3 VA4 VA5 Wa1 Wa2 We1 We2 Date Drilled (yr) 1974 1991 nd 1959 1960 1960 1997 1995 1979 1973 1977 1979 1978 1979 1978 1960s 1996 1988 1998 1959 1958 1958 1958 1989 1960 1960 1960 1960 1960 1980 1980 1977 1977 Elevation (ft, amsl) 5289 5242 5870 5285 5265 5235 5460 5100 5649 5600 5527 5629 5630 5558 5675 5650 5240 5978 5435 5445 5490 5415 5485 5353 5144 5208 5110 5200 5112 5698 5596 5436 5387 Total Depth (ft, bls) 1,194* 1,390* 570 996* 996* 996* 1,525 1,400 1,704* 1,581* 1,602* 1,549* 1,626* 1,675* 1,626 1,708 1,308 820 1323 1,092 1,224 1,200 1,020 3,376 972* 852* 900* 876* 900* 1,715* 1,786* 1,484 1,450 Well Name Coronado No. 1 Coronado No. 2 George Duda Leyendecker No. 1 Leyendecker No. 3 Leyendecker No. 4 Noreste Park PNM-Reeves Ponderosa No. 1 Ponderosa No. 2 Ponderosa No. 3 Ponderosa No. 4 Ponderosa No. 5 Ponderosa No. 6 Ponderosa No. 7 Ponderosa No. 9 Sister Cities Sandia Peak Utilities Sandia Pueblo Thomas No. 1 Thomas No. 2 Thomas No. 3 Thomas No. 4 Thomas No. 5 Vol Andia No. 1 Vol Andia No. 2 Vol Andia No. 3 Vol Andia No. 4 Vol Andia No. 5 Walker No. 1 Walker No. 2 Webster No. 1 Webster No. 2 SWL (ft, bls) 388 330 385 421 393 455 541 u 160 762 736 667 767 746 672 726 736 340 u 603 482 u 595 629 551 622 489 263 340 230 327 228 853 694 537 490 Date Meas. (yr) 1996 1998 nd 1997 1997 1996 1997 1995 1998 1998 1996 1997 1997 1997 1987 1987 1996 1988 1998 1996 1996 1994 1995 1998 1998 1997 1997 1997 1998 1996 1996 1998 1995 Screen Top (ft, bls) 479 590 nd 468 456 480 538 nd 964 801 870 936 939 852 939 964 350 nd 485 624 696 672 672 722 300 360 264 372 260 982 852 620 608 Screen Base (ft, bls) 1184 1390 nd 996 996 996 1520 nd 1693 1569 1590 1738 1613 1662 1613 1693 1303 nd 1310 1092 1224 1200 1020 1450 972 852 900 876 900 1703 1773 1345 1334 Screen Length (ft) 705 800 nd 528 540 516 70 M nd 729 768 720 802 674 810 674 729 110 M nd 50 M 468 528 528 348 728 672 492 636 504 640 721 921 725 726 Screened Units QTsa QTsa QTsp** QTsa QTsa QTsa QTsa QTsa** QTsp, QTsa(?) QTsp, QTsa QTsp, QTsa(?) QTsp, QTsa(?) QTsp, QTsa(?) QTsp, QTsa(?) QTsp, QTsa(?) QTsp, QTsa(?) QTsp QTsp** QTsa, Tsal QTsa QTsa QTsa QTsa QTsa QTsa QTsa QTsa QTsa QTsa QTsp, QTsa QTsa QTsa QTsa Specific Capacity (gal/min/ft) nd nd nd 157 129 124 nd nd nd 25 55 20 87 nd 26 35 nd nd nd 83 47 66 47 80 138 139 nd 147 109 19 nd 114 95 Specific Capacity m 3 /d/m) nd nd nd 2808 2307 2218 nd nd nd 447 984 358 1556 nd 465 626 nd nd nd 1484 841 1180 841 1431 2468 2486 nd 2629 1949 340 nd 2039 1699 T (gal/d/ft) nd nd nd 412,000 418,000 366,000 nd nd nd 54,000 143,000 36,000 318,000 nd 48,000 72,000 nd nd nd 216,000 136,000 326,000 299,000 278,000 415,000 487,000 nd 433,000 302,000 30,000 nd 314,000 149,000 T (ft 2 /d) nd nd nd 55,077 55,879 48,927 nd nd nd 7,219 19,116 4,813 42,511 nd 6,417 9,625 nd nd nd 28,875 18,181 43,580 39,971 37,163 55,478 65,103 nd 57,884 40,372 4,010 nd 41,976 19,918 K (ft/d) nd nd nd 104.31 103.48 94.82 nd nd nd 9.40 26.55 6.00 63.07 nd 9.52 13.20 nd nd nd 61.70 34.43 82.54 114.86 51.05 82.56 132.32 nd 114.85 63.08 5.56 nd 57.90 27.44 K (m/d) nd nd nd 31.79 31.54 28.90 nd nd nd 2.86 8.09 1.83 19.22 nd 2.90 4.02 nd nd nd 18.81 10.50 25.16 35.01 15.56 25.16 40.33 nd 35.01 19.23 1.70 nd 17.65 8.36 N E W M E X I C O S T A T E M A P N M B u r e a u o f M i n e s & M i n e r a l R e s o u r c e s E a r t h S c ie n ce for th e 2 1s t C e n t u r y New Mexico Tech Dr. Peter A. Scholle Director and State Geologist Dr. Paul W. Bauer Geologic Mapping Program Director Tentative correlations of alluvial units in the study area, based upon stratigraphic relations, landscape-topographic position, degree of soil development and physical correlation of units. This Study QHa, QHao Qrp, Qrp 1-2 , Qrp c , Qrp s , Qrp sm , Qrp m Qay Qay2 Qrm Qre Qpm Qpo QTob, QTsp Connell (1996) Q9 Qfp9 Q8 Q7 Qoa2 Qoa1 Q6 Q5, Q4, Q3 Q2, QT1 Lambert (1968) Qya Qfa Qya Qya Qm Qe Qop Qop Qu(?)s, Tm 76 AM We1 Mo5A U D 17 l l ll ? ? A A' No2 87 34 AM C ORRELATION OF U NITS SEDIMENTARY Polarity Chron North American Land Mammal "Age" Marine Oxygen Isotope Stage 1 3 5 7 9 11 13 15 19 21 not shown not shown Holocene Pleistocene Pliocene Miocene late middle Brunhes Rancholabrean Irvingtonian Blancan early Matuyama Gilbert Gauss late early 0 ka 10 780 1.8 Ma 5.3 23.7 36.6 57.8 128 66.4 Oligocene Eocene Paleocene Qay Qay 2 QHa af daf Toa Qpo Qpr Qrp Qrpr Qrp s Qrp m Qre Qrm Major unconformity Major unconformity Major unconformity Major unconformity QTsa TKu Qpm Qpm 2 QHao Base not exposed Neogene (Tertiary & Quaternary) Paleogene CENOZOIC Qrpr 2 Qrpr 1 Qrp c Qrp sm Qpm 1 Qp QTsa u QTsp QTsa2 QTsa 1 QTob Tsal Je (?) ˇc Xqs Yp Cretaceous Jurrasic Triassic Mesoproterozoic Paleoproterozoic MESOZOIC PROTEROZOIC ? ? ? ? Major unconformity Major unconformity Ys Qay Qay 2 QHa af daf Toa Qpo Qpr Qrp Qrpr Qrp s Qrp m Qre Qrm QTsa TKu Qpm Qpm 2 QHao Qrpr 2 Qrpr 1 Qrp c Qrp sm Qpm 1 Qp QTsa u QTsp QTsa2 QTsa 1 QTob Tsal Je (?) ˇc Xqs Yp Ys

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Page 1: B' · 2000. 2. 3. · 6,000 feet ASL 5,000' 4,000' 3,000' 6000 feet ASL 5,000' 4,000' 3,000' QTsp Qp QTsp QTsa QTsa QTsa Qp Qpr Vertical Exaggeration = 2x PNM-R2 EXPLANATION OF GEOPHYSICAL

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37

28

45

64

1628

45

23

40

40

20

40

47

33

87

25

25

60

18

89

23

1817

2870

14

70

70

72

50

52

7176

60 41

76

34

Qay2QHa

QHa

Qrpm

Qrps

Qrpm

Qrpm

Qrps

Qrps

Qrpm

Qrpsm

Qrpr1

Qrpr

af

Qrpr1

af

Qrpr2

Qrpr

Qrpr1

Qrpr af

Qrpr

Qrpsm

QHa

Qay

Qrpm

Qrpc

Qrpsm

QHa

af

daf

daf

Qay

Qay

Qrpc

QrpsQrps

Qrps

daf

daf

af

af

af

Qrpm

Qrpc

QrpcQrps

Qrps

QHa

QHa

Qrpm

Qrps

QHa

QHa

daf

Qay

daf

Qay

Qay

QHa

daf

Qay

Qre

QHa

Qay

af

QHa

Qre

daf

daf

Qay

Qay

Qay

QHa

Qre

daf

daf

daf

Qre

Qay

Qre

Qre Qpm

Qay

QpmQpm

Qre

daf

QHa

QHa

Qay

Qpm

Qay

QHa

Qre

Qpm1

Qpm1

Qpm1

Qay

Qay

Qay

Qpm1

Qpm1

QayQpm1

af

Qpm2

af

af

Qpm2

af

QHa

Qpm1

QTsp

Qpm2

Xqs

Qpm2

Qpm2

Qay

Qpm1 Xqs

Qpo

QTsp(?)

Qpm

Qpm

Qpm

Qpm

Qay

Qay

QpmQpm

Qay

Qpm

Qay

QHa

Qay

Qay

Qpm

Qpm

Qpm

af

af Qpm1Qpm

Qpm

Qpm

Qpm

Qay

Qay

Qpm

Qpm

Qpm

Qpm

QHa

QHa

QHa

af

af

af

QHa

QHa

Qpm

Qpm

Qpm

Qpm

Qpm

Qay

Qpm

Qpm

QHa

QHa

QHa

Qpm

Qpm

Qay

QayQpm1

Qpm

AM

AM

AM

AM

AM

AM

AM

AM

AM

AM

AM A

M

QHao

QHao

Qrm

Qrm

Qrm

Qrpm

QHa

Qre

Qre

Qay

Qrpsm

Qrpsm

Qre

Qrpm

Qrpm

Qrm

Qrpr1

Qay

Qpm

Qay

Qpm

Qrm

Qay

QHa

QHa

Qre

QTsa Qpm2Qpo

QHa

QHa

QHa

Qpm2

QpoQay

Qre

Qrm

QHa

Qay

QHa

Qpm

QHa

QHa

Qpm2

Qpm1

Qpm2

Qpm

QHa

Qay

Qpo

Qpm2(?)

Qrpc

Qrpm

Qrpr1

Qrpsm

Qrps

Qpm2(?)

Qpm2

Qre

Qrpr1

Qrps

Qpm

C'

ˇc

Qay

Qay

QHa

Qre

Qre

Qay

Qre

Qay

Qay

Qrm

Qre

Qay2QHa

QHa

Qrpm

Qrps

Qrpm

Qrpm

Qrps

Qrps

Qrpm

Qrpsm

Qrpr1

Qrpr

af

Qrpr1

af

Qrpr2

Qrpr

Qrpr1

Qrpr af

Qrpr

Qrpsm

QHa

Qay

Qrpm

Qrpc

Qrpsm

QHa

af

daf

daf

Qay

Qay

Qrpc

QrpsQrps

Qrps

daf

daf

af

af

af

Qrpm

Qrpc

QrpcQrps

Qrps

QHa

QHa

Qrpm

Qrps

QHa

QHa

daf

Qay

daf

Qay

Qay

QHa

daf

Qay

Qre

QHa

Qay

af

QHa

daf

daf

Qay

Qay

Qay

QHa

Qre

daf

daf

daf

Qay

Qre

Qre Qpm

Qay

QpmQpm

Qre

daf

QHa

QHa

Qay

Qpm

Qay

QHa

Qre

Qpm1

Qpm1

Qpm1

Qay

Qay

Qay

Qpm1

Qpm1

QayQpm1

af

Qpm2

af

af

Qpm2

af

QHa

Qpm1

QTsp

Qpm2

Xqs

Qpm2

Qpm2

Qay

Qpm1 Xqs

Qpo

QTsp(?)

Qpm

Qpm

Qpm

Qpm

Qay

Qay

QpmQpm

Qay

Qpm

Qay

QHa

Qay

Qay

Qpm

Qpm

Qpm

af

af Qpm1Qpm

Qpm

Qpm

Qpm

Qay

Qay

Qpm

Qpm

Qpm

Qpm

QHa

QHa

QHa

af

af

af

QHa

QHa

Qpm

Qpm

Qpm

Qpm

Qpm

Qay

Qpm

Qpm

QHa

QHa

QHa

Qpm

Qpm

Qay

QayQpm1

Qpm

AM

AM

AM

AM

AM

AM

AM

AM

AM

AM

AM A

M

QHao

QHao

Qrm

Qrpm

QHa

Qre

Qre

Qrpsm

Qrpsm

Qre

Qrpm

Qrpm

Qrpr1

Qay

Qpm

Qay

Qpm

Qrm

Qay

QHa

QHa

Qre

QTsa Qpm2Qpo

QHa

QHa

QHa

Qpm2

QpoQay

Qre

Qrm

QHa

Qay

QHa

Qpm

QHa

QHa

Qpm2

Qpm1

Qpm2

Qpm

QHa

Qay

Qpo

Qpm2(?)

Qrpc

Qrpm

Qrpr1

Qrpsm

Qrps

Qpm2(?)

Qpm2

Qre

Qrpr1

Qrps

Qpm

Qrpm

Qrps

Qrpr2

Qrpr2

Qrpr2

QHa

Qrpc

Qrpm

Qrpm

QHa

Qrps

Qrpm

Qre

QTsau

QTsau

Qrm

Qre

Qre

af

QHaQHa

Qay

QHa

Qpm

Qre

Qre

Qrm

Qrm

Qpm1

Qpm1

Qay

afaf

af

af

af

af

af

af

af

af

af

af

afaf af

af

af

af

af

QHa af

af

Qpm1

Qpm1

QHa

QHaQpo

af

QHa

Qpo

Je?Qpo

Qpo

Xqs

Qpo

QTsp(?)

af

QHa

af

af

Qay

af

afafaf

af

af

Qpm

QHa

QreQHa

Qay

QTsa?

Qrpm

Qrps

Qpm1

Qpm2

Qpm2

Qpm2

Qpm2

Qpm1

Qpm2

Qpm2

Qpm2

QTsa?

QTob?

QTsa?

QpoXqs

Ys

Ys

ˇc

ˇc

QHa

QHa

Qpm

Qpm

QHa

Qpm

QHa

Qpm

QHa

Qpm

Qpm

Qre

QHa

Qrpm

Qrps

Qrpr2

Qrpr2

Qrpr2

QHa

Qrpc

Qrpm

Qrpm

QHa

Qrps

Qrpm

QTsau

QTsau

Qrm

Qre

Qre

af

QHaQHa

Qay

QHa

Qpm

Qre

Qre

Qrm

Qrm

Qpm1

Qpm1

Qay

afaf

af

af

af

af

af

af

af

af

af

af

afaf af

af

af

af

af

QHa af

af

Qpm1

Qpm1

QHa

QHaQpo

af

QHa

Qpo

Je?Qpo

Qpo

Xqs

Qpo

QTsp(?)

af

QHa

af

af

Qay

af

afafaf

af

af

Qpm

QHa

Qre

Qay

Qrpm

Qrps

Qpm1

Qpm2

Qpm2

Qpm2

Qpm2

Qpm1

Qpm2

Qpm2

Qpm2

QTsa?

QTob?

QTsa?

QpoXqs

Ys

Ys

QHa

QHa

DD1

SPU3

Mo5A

VA3

VA5 VA1 VA4

VA2

Ly3 Ly4

Ly1

Th5

Th3

Th1

Th4

Th2

Po2

Po3

Po4

Po6

Po1

SCS

MW3E

PNM-R

Cr2

Cr1

We1

We2

No2

NEP

Wa2Wa1

? ?

Jaralfault

Sandia fault -

La Cueva fault

Rin

con

fault

?

?

Sandia fault - East Embudo strand

EastH

eightsfault

zone -Alameda strand

Po5

Po9

VA6

La1 La8

La2La5

La4

La3La6

EA

ST

ER

N L

IMIT

OF R

IO G

RA

ND

E T

ER

RA

CE

S

UD

?UD

?

?

?

UD

UD

?

?

UD

?

UD UD

Tramw

ayBlvd. strand

Sandia fault - West Em

budo strand

UD

EastHeights

fault zone -EubankBlvd. strand

EastH

eightsfault

zone - Coronadostrand

?

SPW

UD

UD

UD

?

UD

EA

ST

ER

NL

IMIT

OF

AX

IAL

LIT

HO

FAC

IES

NMBMMR Open File Map SeriesOF–GM–10

Map last modified 2 February 2000

GEOLOGIC CROSS SECTIONS

UNIT DESCRIPTIONS

EXPLANATION OF MAP SYMBOLS

NEW MEXICO BUREAU OF MINES AND MINERAL RESOURCESA DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY

Geology of Alameda quadrangle,Bernalillo and Sandoval Counties,

New Mexico

by Sean D. Connell

May 19972 February 2000 Revision

New Mexico Bureau of Mines and Mineral Resources, Socorro, NM 87801Albuquerque Field Office, Albuquerque, NM 87106

(ALBUQUERQUE EAST)

GNMN

0° 54'

16 MILS

12.5°222 MILS

UTM GRID AND 1972 MAGNETIC NORTHDECLINATION AT CENTER OF SHEET

35°07'30"106°37'30"

T. 11 N.

(ALBUQUERQUE W

EST)

T. 10 N.

353INTERSTATE 40 1.4 MI.

R. 3 E. R. 4 E.35' 358 359 32'30"

NEW MEXICO

QUADRANGLE LOCATION

362000m E.35°07'30"

106°30'(TIJERAS)

T. 11 N.

T. 10 N.

3889

3890

3891

3892

3893

3896

3899

3900

10'

(SA

ND

IA C

RE

ST)

12'30"

35°15'106°30' (P

LACITAS)

ALAMEDA QUADRANGLENEW MEXICO

1 540 000

FEET

390 000 FEET

106°37'30"353000m E. 355 35' 359 32'30" 385000m E.

3889

3890

3892

3896

3897

3899

10'

12'30"

35°15'

Base from U.S. Geological Survey 1960, photorevised 1967 and 1972Polyconic projection, 1927 North American datum10,000-foot grid based on New Mexico coordinate system, cental zone1000-meterUniversal Transverse Mercator grid ticks, zone 13, shown in blue

S. D. Connell: mapping, Phanerozoic stratigraphy and regional structural interpretationrefined from borehole data analyses, unit descriptions and correlations, and structuralcross sections A-A' and B-B' (cross section B-B' modified from Hawley and Whitworth,1996); geology depicted in areas of disturbance (af) taken from Lambert (1968, scaleof 1:48,000); Proterozoic geology taken from Hayes (1951) due to lack of accessibilty

D. J. McCraw and G. E. Jones: digital cartographic production

361360(BERNALILLO)

3901000m N.

(LOMA MACHETE)

T.12 N.

T.11 N.

(LO

S G

RIE

GO

S)

A

B'

1 0.5 0 1 MILE

1000 0 1000 2000 3000 4000 5000 6000 7000 FEET

1 0.5 0 1 KILOMETER

NATIONAL GEODETIC VERTICAL DATUM OF 1929CONTOUR INTERVAL 10 FEET

SCALE 1:24,000

B

A'

354CENTRAL AVE. (US 66) 3.3 MI.

356CENTRAL AVE. (US 66) 3.5 MI.

360 361

3888000m N.

3894

3901

T. 12 N.

T. 11 N.

363420 000 FEETSANTA FE 47 MI.

R. 3 E. R. 4 E.BERNALILLO 3.8 MI.

NM 44 6.6 MI.354

3900

NM

194 2

.5 M

I.N

M 1

94 0

.6 M

I.A

LB

UQ

UE

RQ

UE

6.8

MI.

3893

1 510 000

FEET

4th

ST.

(U

S 8

5)

0.6

MI.

Mapping of this quadrangle was funded by a matching-funds grant from the 1997 STATEMAPprogram of the National Geologic Mapping Act coordinated by the U.S. Geological Survey

and the New Mexico Bureau of Mines and Mineral Resources.

C

REFERENCES

B'BW

E

Cross sections are constructed based upon the interpretations of theauthors made from geologic mapping, and available geophysical(regional gravity and aeromagnetic surveys), and subsurface (drillhole)data. Cross sections should be used as an aid to understanding thegeneral geologic framework of the map area, and not be the solesource of information for use in locating or designing wells, buildings,roads, or other man-made structures.

A'E

AW

C'N

CS

MW

3E

Inte

rsta

te 2

5

Cr2 C

r1 We2 We1 W

a2 Wa1

6,000feet ASL

5,000'

4,000'

3,000'

6000feet ASL

5,000'

4,000'

3,000'

QTsp

Qp

QTsp

QTsa

QTsa

QTsa

QpQpr

Vertical Exaggeration = 2x

PNM

-R2

EXPLANATION OFGEOPHYSICAL LOGS

East Heights fault zone

SPU

3

QTsp

QTsp

Coronadostrand

Alamedastrand

Eubank Blvd.strand

WestEmbudostrand

Sandiafault zone

EastEmbudostrand

Qp

QTsa2

Toa

Tsal

QTsa1

QTsa2

QTsa1

Tsal

Toa

QTsa

QTsa

QTsa2

QTsa1

Tsal

Toa

QTsaQTsa

Toa

Tsal

QTsa2

Qrp

6000feet ASL

5,000'

4,000'

3,000'

2,000'

1,000'

Mo5

a

?

?

Qpr

Tsal

Toa

QTsa QTsa2

QTsa1

VA

3

VA

1

VA

4

Qpr

Toa

QTsa

QTsa

Toa

?

?

Toa?

QTsa

QTsp

Tsal

?

Th3

Th5 T

h2 Po2 Po

1

QTsp

TKu

Ly4

Ly1

Ly3

6000feet ASL

5,000'

4,000'

3,000'

2,000'

1,000'

East Heights fault zone

Coronadostrand

Alamedastrand

Eubank Blvd.strand

WestEmbudostrand

Sandiafault zone

Qp

QTsp

QTspQTsp-Tsal(?)

QTsaQTsa

QTsa

QTsaQTsa2

QTsa1

QTsaQTsa

QTsa

QTsa

QTsa2

QTsa1

QTsa

QTsa1

QTsa2

TsalTsal

Ly3 SP

W

TD

5024

ft

?

QTsp

BT

No2

We2 W

e1 (p

roje

cted

)

NE

Pprojection ofSunport geomorphic

surface

6000feet ASL

5,000'

4,000'

3,000'

2,000'

6000feet ASL

5,000'

4,000'

3,000'

2,000'

East Heights fault zone

Coronadostrand

Alamedastrand

Eubank Blvd.strand

Tram

way

Blv

d.

Cross Section B-B'Cross Section

A-A'

Cr2

(pro

ject

ed)

SCS

(pro

ject

ed)

Th5

(pro

ject

ed)

QTsa

QTsa2

QTsa1

Tsal

Toa

QTsa

QTsa

Toa?

Qp-QTsp

QTsa

QTsa2

QTsa1

Tsal

QTsa

Toa?

Qp-QTsp

QTsa

QTsa1

Tsal

?Toa?

Qp-QTsp

QTsa

Tsal

Vertical Exaggeration = 2x

TKu

Silt Clay

? ?

? ??

QTsa QTsp

Qp

QTsp

QTsa

QTsa

QTsa

QpQpr

QTsp

QTsp

Qp

QTsa2

Toa

Tsal

QTsa1

QTsa2

QTsa1

Tsal

Toa

QTsa

QTsa

QTsa2

QTsa1

Tsal

Toa

QTsaQTsa

Toa

Tsal

QTsa2

Qrp

Qpr

Tsal

Toa

QTsa QTsa2

QTsa1

Qpr

Toa

QTsa

QTsa

Toa

Toa?

QTsa

QTsp

Tsal

QTsp

TKu

Qp

QTsp

QTspQTsp-Tsal(?)

QTsaQTsa

QTsa

QTsaQTsa2

QTsa1

QTsaQTsa

QTsa

QTsa

QTsa2

QTsa1

QTsa

QTsa1

QTsa2

TsalTsal

TD

5024

ft

QTsp

BT

projection ofSunport geomorphic

surface

QTsa

QTsa2

QTsa1

Tsal

Toa

QTsa

QTsa

Toa?

Qp-QTsp

QTsa

QTsa2

QTsa1

Tsal

QTsa

Toa?

Qp-QTsp

QTsa

QTsa1

Tsal

Toa?

Qp-QTsp

QTsa

Tsal

TKu

QTsa

0100200

ElectricalConductivity

(mmhos/m)

225

GammaRay

(GAPI)

0100200

ElectricalConductivity

(mmhos/m)

225

GammaRay

(GAPI)

Qrpr1

Qrpr2

Qrp

Qrpc

Qrm

Qre

Qp

Qay2

CENOZOIC ERATHEMNeogene (Quaternary and Tertiary) System

Colluvial, landslide, eolian, and anthropogenic depositsThin surficial deposits derived from wind and mass-movement processes, or extensive areas disturbed by open-pit aggregate mining or construction.

Artificial fill (Historic) — Dumped fill and areas affected by human disturbances, including levees borderingthe Rio Grande. Locally mapped where areally extensive or geologic contacts are obscured. .

Disturbed land and artificial fill, undivided (Historic) — Dumped fill and areas affected by open-pitaggregate mining or construction. Locally mapped where disturbance is areally extensive or geologic contactsare obscured. .

Alluvium of the Rio GrandeFluvial deposits derived from the ancestral and modern Rio Grande that unconformably overlie fluvial depositsand eastern basin-margin deposits of the upper Santa Fe Group (QTsa and QTsp). Subdivided into threeformations on the basis of inset relationships.

Las Padillas Formation (Historic to uppermost Pleistocene) — Unconsolidated to poorly consolidated,pale-brown (10YR), fine- to coarse-grained sand and rounded gravel with subordinate lensoidal interbeds offine-grained sand, silt, and clay derived from the Rio Grande. Recognized in drillholes and named for depositsunderlying the broad inner valley floodplain near the community of Las Padillas in southwest Albuquerque(Connell et al., 1998b). Unconformably overlies upper Santa Fe Group deposits and is commonly gravellyat the base. Probably interfingers with stream alluvium (QHa and Qay). Deposit surface (top) comprises themodern surface of aggradation for the Rio Grande. Surficial deposits (< 6 ft [2 m] thick) are divided into amodern river channel, and four textural subunits based on interpretations of soil series described and mappedby Hacker (1977). Approximately 50-80 ft (15-24 m) thick.

Modern channel deposits (Historic) — Unconsolidated sand and gravel within the active channel ofthe Rio Grande. Delineated using aerial photography and divided into older (Qrpr1) and younger (Qrpr2)subunits based upon inset relationships.

Gravelly to sandy stream and floodplain deposits (Historic) — Unconsolidated coarse-grained sandand pebbly sand. Interpreted to represent channel deposits. Includes Brazito series of Hacker (1977).

Sandy stream and floodplain deposits (Historic) — Unconsolidated medium-grained sand and loamysand. Interpreted to represent channel and floodplain deposits. Includes Vinton series of Hacker (1977).

Silty to sandy stream and floodplain deposits (Historic) — Unconsolidated fine-grained sand, silt andclay. Interpreted to represent fine-grained sloughs or oxbows. Includes Glendale and Gila series of Hacker(1977).

Silty to clayey stream and floodplain deposits (Historic) — Unconsoldiated fine-to medium-grainedsand, silt and slay. Interpreted to represent fine-grained floodplain deposits. Includes Anapra, Armijo,Agua, and Gila series of Hacker (1977).

Menaul Formation (upper to upper-middle Pleistocene) — Poorly consolidated deposits of yellowish-brown (10YR) pebble gravel and pebbly sand derived from the ancestral Rio Grande. Named by Lambert(1968) for exposures along Menaul Blvd. Gravel clasts are dominated by rounded quartzite pebbles that aregenerally smaller in size than pebbles and cobbles in the Edith Formation (Qre). Discontinuously (probablylensoidal) exposed along the eastern escarpment of the inner valley of the Rio Grande. The basal contact isapproximately 85-118 ft (26-36 m) above the top of the Las Padillas Formation (Qrp, Rio Grande floodplain),and is unconformably overlain by younger stream alluvium (Qay). Thickness is generally less than 10 ft (3 m).

Edith Formation (middle Pleistocene) — Poorly to moderately consolidated, locally cemented deposits ofpale-brown to yellowish-brown (10YR) gravel, sand and sandy clay derived from the ancestral Rio Grande.Named by Lambert (1968) for exposures along Edith Boulevard and the eastern escarpment of the inner valleyof the Rio Grande. Gravel clasts contain abundant rounded quartzite and volcanic rocks with minor granite,metamorphic sandstone, and very rare (commonly welded) Bandelier Tuff. Comprises an upward-fining sequencecontaining a basal, quartzite-rich cobble gravel that grades upsection into silty sand. Unconformably overliesupper Santa Fe Group deposits, and is unconformably overlain by eastern-margin piedmont alluvium (Qpm)and younger stream alluvium (Qay). Unit Qay buries the Edith Formation south of the Jaral Canyon arroyo.To the north, unit Qay is inset against the Edith Formation. Basal contact is approximately 40-80 ft (12-24 m)above the top of the Las Padillas Formation (Qrp, Rio Grande floodplain), and maybe warped down to thesouthwest by up to 45 ft (14 m) across the Alameda strand of the East Heights fault zone. Gravel pits (withindaf) yielded late to middle Pleistocene Rancholabrean fossils (Lambert, 1968; Lucas et al., 1988). Moderatelydeveloped soils on overlying eastern-margin piedmont alluvium (Qpm) suggest a middle Pleistocene age forunit. Variable thickness, ranging from 10-40 ft (3 to 12 m).

Stream-valley and eastern-margin piedmont alluviumDivided into stream-valley alluvium and eastern-margin piedmont alluvium. Stream-alluvium typically containpoorly to well sorted, poorly to well stratified, clast- and matrix-supported deposits associated with modernand late Pleistocene entrenched arroyos across the map area. Eastern-margin piedmont alluvium containsgenerally poorly sorted, poorly stratified, clast- and matrix-supported deposits having angular to subangularclasts of granitic, metamorphic, sandstone, and minor limestone derived from the western and northern slopesof the Sandia Mountains and eastern basin margin. .

Piedmont and stream alluvium, undivided (Historic to middle Pleistocene) — Cross section only. Undivideddeposits of stream-valley alluvium (QHa and Qay) and eastern-margin piedmont alluvium (Qpm). .

Fluvial deposits, piedmont alluvium, and stream alluvium, undivided (Historic to middlePleistocene) — Cross section only. Undivided Las Padillas, Menaul, and Edith formations (Qrp, Qrm, and Qre,respectively), stream-valley (QHa and Qay), and eastern-margin piedmont alluvium (Qpm). .

Youngest stream alluvium (Historic to Holocene) — Unconsolidated deposits of brown, light gray-brown,and yellowish-brown (10YR) sand, silty to clayey sand, and gravel. Underlies arroyos, inset against youngerstream alluvium (Qay), and probably interfingers with the Las Padillas Formation (Qrp). Very weakly developedsoils exhibit no pedogenic carbonate at the surface and weak Stage I carbonate morphology at depth. Formsextensive valley border alluvial fans along the margins of the inner valley of the Rio Grande. These valleyborder alluvial fans may locally contain hydrocollapsible soils. Correlative to geomorphic surfaces Q8-Q9of Connell (1995, 1996). Variable thickness, ranging up to 50 ft (15 m).

Younger stream alluvium (Holocene to uppermost Pleistocene) — Poorly consolidated deposits of pale-brown to light-brown (7.5-10YR) sand to sandy clay loam and gravel. Inset against eastern-margin piedmontalluvium (Qpm). Distal margin is truncated at the eastern escarpment of the inner valley of the Rio Grande.Surface is slightly dissected and possesses weakly developed soils with Stage II carbonate morphology. Locallyincludes undivided stream alluvium (QHa) in narrow arroyos. Underlies entrenched stream valleys on thepiedmont slope. These arroyo valley deposits grade west into older alluvial fans that mark the position of anolder valley border. These alluvial fans may locally contain hydrocollapsible soils. Locally subdivided into older(Qay1, on adjacent Bernalillo Quadrangle, Connell, 1998) and younger (Qay2) deposits on the basis of insetrelationships. Deposits along the northwestern margin of map area consist of sandy alluvium with scatteredgravel lenses derived from the Arroyo de las Calabacillas drainage. This deposit contains clasts of red granite,chert, and basalt derived from the western margin of the basin.Correlative to geomorphic surface Q8 of Connell(1995, 1996). Variable thickness, ranging up to 20 ft (6 m).

Middle eastern-margin piedmont alluvium, undivided (upper to middle Pleistocene) — Poorly tomoderately consolidated deposits of very pale-brown to strong-brown and light-gray (7.5-10YR) sand and siltyto clayey sand, and gravel. Inset against older eastern-margin piedmont alluvium (Qpo), unconformably overliesthe Edith Formation (Qre), and is inset by younger stream alluvium (Qay). Gravel clasts are predominantlysubangular granite and schist with minor subrounded limestone derived from the western front of the SandiaMountains and Rincon Ridge. Slightly to moderately dissected deposit surface exhibits subdued constructionalbar-and-swale topography on interfluves. Weakly developed soils exhibit Stage II to III+ carbonate morphologyand minor to moderate clay film development. Locally divided into two subunits. Variable thickness, rangingup to 140 ft (43 m).

Younger subunit (upper to middle Pleistocene) — Moderately consolidated deposits of very pale-brown to strong yellowish-brown (7.5-10YR), poorly to moderately stratified and sorted, silty clay andloamy sand and gravel. Inset against older piedmont subunit (Qpm1), and conformably overlies theMenaul Formation (Qrm). Deposit surface along the mountain front is slightly to moderately dissected andexhibits subdued bar and swale topography on interfluves. Deposit surface (top) is deeply dissected alongthe eastern escarpment of the inner valley of the Rio Grande. Soils are moderately developed and possessStage II carbonate morphology and few to common, thin to moderately thick clay films. Geomorphicsurface Q7 of Connell (1995, 1996).

Geologic cross section.

Geologic contact—Solid where exposed; dashed where approximately located; dotted whereconcealed; queried where inferred.

Geologic contact—Interpreted location within units af and daf; modified from Lambert (1968) orinterpreted using vintage aerial photography.

Approximate location of buried contact separating the ancestral Rio Grande axial-fluvial deposits(QTsa) and eastern basin-margin piedmont deposits (QTsp) of the upper Santa Fe Group. .

Approximate extent of buried fluvial terrace risers of the ancestral Rio Grande (post Santa FeGroup)—Hachured towards fluvial terraces; Edith Formation (double hachured line).

Fault—Tick showing dip; solid where exposed, dashed where approximately located, dotted whereconcealed; ball and bar on downthrown side, upthrown (U) side differentiated from downthrown(D) side where concealed. .

Approximate trace of degraded fault scarp.

Strike and dip of bedding.

Pegmatite dike, tick showing dip.

Dominant tectonic foliation or gneissic foliation, if chronology of fabric is unknown. .

Aeromagnetic anomaly (interpreted from U.S. Geological Survey and Sial Geosciences, Inc., 1998).

Water-supply well, including abbreviation.

Exploratory or groundwater monitoring well, including abbreviation.

Narruss Realty No. 2 oil test well

Water table; approximate elevation (cross sections only).

Lowest occurrence of probable Bandelier Tuff clasts in borehole (cross section only). .

A geologic map displays information on the distribution, nature, orientationand age relationships of rock and deposits and the occurrence ofstructural features. Geologic and fault contacts are irregular surfacesthat form boundaries between different types or ages of units. Datadepicted on this geologic quadrangle map are based on reconnaissancefield geologic mapping, compilation of published and unpublishedwork, and photogeologic interpretation. Locations of contacts are notsurveyed, but are plotted by interpretation of the position of a givencontact onto a topographic base map; therefore, the accuracy of contactlocations depends on the scale of mapping and the interpretation ofthe geologist(s). Lambert (1968) produced a geologic map (scale1:48,000) of the region prior to significant ground disturbance. Portionsof Lambert’s map are incorporated where surface disturbance issignificant. The geology of areas of extensive ground disturbance havebeen evaluated using aerial photography (1935, 1951, 1973, and1996 vintages). Any enlargement of this map could causemisunderstanding in the detail of mapping and may result in erroneousinterpretations. Site-specific conditions should be verified by detailedsurface mapping or subsurface exploration. Topographic and culturalchanges associated with recent development may not be shown.Subdivision of the Las Padillas Formation was made using geologicinterpretations of (shallow) soil survey data published by the SoilConservation Service (Hacker, 1977).

The map has not been reviewed according to New Mexico Bureau ofMines and Mineral Resources standards. Revision of the map is likelybecause of the on-going nature of work in the region. The contents ofthe report and map should not be considered final and complete untilreviewed and published by the New Mexico Bureau of Mines andMineral Resources. The views and conclusions contained in this documentare those of the authors and should not be interpreted as necessarilyrepresenting the official policies, either expressed or implied, of theState of New Mexico and the U.S. Government.

Allen, B. D., Connell, S. D., Hawley, J. W., and Stone, B. D., 1998, Core drilling provides information aboutSanta Fe Group aquifer beneath Albuquerque’s west side: New Mexico Geology, v. 20, n. 1., p. 8-13.

Bexfield, L. M., 1998, Proposed expansion of the City of Albuquerque/U.S. Geological Survey Ground-water-level monitoring network for the Middle Rio Grande Basin, New Mexico: U.S. Geological Survey, Open-File Report 97-787, 21 p. 2 pl.

Brookins, D. G., 1982, Radiometric ages of Precambrian rocks from central New Mexico, in: Wells, S. G., andGrambling, J. A., eds., Albuquerque country II: New Mexico Geological Society Guidebook 33, p. 187-189.

Connell, S. D., 1995, Quaternary geology and geomorphology of the Sandia Mountains piedmont, Bernalilloand Sandoval Counties, central New Mexico: [M.S. Thesis] Riverside, University of California, 390 p., 3pl.

Connell, S. D., 1996, Quaternary geology and geomorphology of the Sandia Mountains piedmont, Bernalilloand Sandoval Counties, central New Mexico: New Mexico Bureau of Mines and Mineral Resources Open-File Report 425, 414 p., 3 pl. (open-file release of Connell, 1995).

Connell, S. D., and Heynekamp, M., 1998, Field boring log for Sandia Pueblo Well, City of Albuquerquepiezometer nest, FY 1998: New Mexico Bureau of Mines and Mineral Resources, Open-File Report 444A,7 p, 2 ap.

Connell, S. D., Allen, B. D., and Hawley, J. W., 1998a, Subsurface stratigraphy of the Santa Fe Group usingborehole geophysics, Albuquerque area, central New Mexico: New Mexico Geology, v. 20, n. 1, p. 2-7.

Connell, S. D., Allen, B. D., Hawley, J. W., and Shroba, R. S., 1998b, Geology of the Albuquerque West 7.5-minute quadrangle, Bernalillo County, New Mexico: New Mexico Bureau of Mines and Mineral Resources,Open-File Report DM-17, scale: 1:24,000.

Groundwater Management, Inc., 1988a, Pumping test data analysis, Leyendecker well field, City of Albuquerque,New Mexico: Kansas City, KS, 66106, 64p.

Groundwater Management, Inc., 1988b, Pumping test data analysis, Ponderosa well field, City of Albuquerque,New Mexico: Kansas City, KS, 66106, 92p.

Groundwater Management, Inc., 1988c, Pumping test data analysis, Thomas well field, City of Albuquerque,New Mexico: Kansas City, KS, 66106, 67p.

Groundwater Management, Inc., 1988d, Pumping test data analysis, Vol Andia well field, City of Albuquerque,New Mexico: Kansas City, KS, 66106, 80p.

Hacker, L. W., 1977, Soil survey of Bernalillo County and parts of Sandoval and Valencia County, New Mexico:U.S. Department of Agriculture, Soil Conservation Service.

Hayes, P. T., 1951, Geology of the Pre-Cambrian rocks of the northern end of the Sandia Mountains, Bernalilloand Sandoval Counties, New Mexico [M.S. Thesis]: Albuquerque, University of New Mexico, 54 p.

Jackson, P. B., Connell, S. D., Hawley, J. W., Chamberlin, R. M., and Allen, B. D., 1998, Field logs of boreholesfor nested piezometers, Noreste Park site, City of Albuquerque: New Mexico Bureau of Mines and MineralResources, Open-File Report 444B, 28 p., 1 ap.

John Shomaker and Associates, Inc., 1990, Well report, City of Albuquerque, Thomas No. 5: Albuquerque,NM.

Johnson, P., Connell, S. D., and Allred, B., 1997, Field boring log for Sister Cities Park, City of Albuquerquepiezometer nest, FY 1996: New Mexico Bureau of Mines and Mineral Resources, Open-File Report 426A,22 p.

Kelley, V. C., and Northrop, S. A., 1975, Geology of the Sandia Mountains and vicinity: New Mexico Bureauof Mines and Mineral Resources Memoir 29, 136p.

Kelley, V. C., 1977, Geology of the Albuquerque basin, New Mexico: New Mexico Bureau of Mines andMineral Resources Memoir 33, 60p.

Lambert, P. W., 1968, Quaternary stratigraphy of the Albuquerque area, New Mexico [Ph.D. dissertation]:Albuquerque, University of New Mexico, 329p.

Lozinsky, R. P., 1994, Cenozoic stratigraphy, sandstone petrology, and depositional history of the Albuquerquebasin, central New Mexico, in: Keller, G. R., and Cather, S. M., eds., Basins of the Rio Grande rift:Structure, Stratigraphy, and Tectonic setting: Geological Society of America, Special Paper 291, p.73-82.

Lucas, S. G., Williamson, T. E., and Sobus, J., 1988, Late Pleistocene (Rancholabrean) mammals from the Edithformation, New Mexico: New Mexico Journal of Science, v. 28, n. 1, p. 51-58. .

Lucas, S. G., Williamson, T. E., and Sobus, J., 1993, Plio-Pleistocene stratigraphy, paleoecology, and mammalianbiochronology, Tijeras Arroyo, Albuquerque area, New Mexico: New Mexico Geology, v. 15, no. 1, p.1-8.

Machette, M. N., 1978, Geologic map of the San Acacia Quadrangle, Socorro County, New Mexico: U.S.Geological Survey, Geologic Quadrangle Map GQ-1415, scale 1:24,000.

U. S. Geological Survey and Sial Geosciences, Inc., 1998, Description of digital aeromagnetic data collectednorth and west of Albuquerque, New Mexico: U. S. Geological Survey Open-File Report 97-286.

Van Hart, D., 1999, Geology of Mesozoic sedimentary rocks in the Juan Tabó area, northwest SandiaMountains, Bernalillo County, New Mexico: New Mexico Geology, v. 21, no. 4, p. 104-111.

af

daf

Qrps

Qrpsm

Qrpm

Qpr

QHa

Qay

Qpm

Qpm2

Qpm1

Qpo

QTsa

QTsau

QTsa2

QTsa1

QTsp

QTob

Toa

Tsal

TKu

Je

ˇc

Older subunit (middle Pleistocene) — Moderately consolidated deposits of light- to strong-brown (7.5YR)and very pale-brown to light-gray (7.5-10YR), poorly to moderately stratified and sorted, sand clayey sandand gravel. Unconformably overlies the Edith Formation (Qre). Subdued bar-and-swale constructionaltopography is locally preserved on broad weakly dissected interfluves. Dissected deposit surface (top)commonly exhibits erosional ridge-and-ravine topography. Moderately well developed soils with StageIII+ carbonate morphology and many moderately thick clay films. Geomorphic surface Q6 of Connell(1995, 1996).

Older eastern-margin piedmont alluvium (middle to lower Pleistocene) — Consolidated deposits ofyellowish-brown (10YR), poorly sorted and stratified, gravel and sand with minor, thin silty-clay interbeds.Gravel clasts are predominantly subangular granite and schist with minor subrounded limestone. Granite clastsare commonly pitted, and schist clasts are typically weathered and split. Variable thickness, ranging to at least60 ft (18 m).

Upper Santa Fe GroupAxial-fluvial deposits of the ancestral Rio Grande, undivided (lower Pleistocene to Pliocene) —Consolidated and locally cemented, very pale-brown to yellowish-brown (10YR) sandstone and conglomeratedeposited by the ancestral Rio Grande. Gravel clasts are predominantly rounded quartzite and volcanic rockswith minor granite and basalt. Dominantly sandstone with interbedded pebbly to cobbly conglomerate, butgenerally coarsens upsection with cobble conglomerate beds common near the top. Interfingers with upperSanta Fe Group eastern basin-margin piedmont deposits (QTsp) to the east. May be correlative with axial-stream deposits of the Sierra Ladrones Formation (Machette, 1978) described along the southern margin ofthe Albuquerque Basin. High hydraulic conductivity where saturated. Subdivided into an upper, pumiceousunit (QTsau) on map. Subdivided into upper (QTsa2) and lower (QTsa1) silty sandstone marker beds on crosssections. Base not exposed but interpreted to be at least 2,000 ft (610 m) thick in drillholes. . .

Upper pumice-bearing axial-fluvial deposits (lower Pleistocene) — Very pale-brown to yellowish-brown (10YR), pumiceous sand and pebbly to cobbly sand deposits by the ancestral Rio Grande. Gravelclasts are predominantly rounded pumice, quartzite and volcanic rocks, with minor chert, granite, andmetamorphic rocks. Pumice clasts are derived from the ca. 1.61 Ma lower Bandelier Tuff (Lambert, 1968;W.C. McIntosh, 1997, personal communication). Medium-to coarse-grained, euhedral, bipyramidal quartzgrains are locally abundant. Bedding is subhorizontal, and commonly cross stratified. Minor silty sandbeds are discontinuous and range in color from light brown to grayish green. Approximately 210 ft (65m) thick at Tijeras Arroyo (Lucas et al., 1993).

Upper sandy mudstone marker bed (Pliocene) — Cross section only. Muddy sandstone and sandymudstone recognized by laterally correlative zones of relatively low resistivity (high electrical conductivity)on borehole geophysical logs. Approximately 150-200 ft (45-60 m) thick and about 100 ft (30 m) abovethe lower marker bed (QTsa1). .

Lower sandy mudstone marker bed (Pliocene) — Cross section only. Muddy sandstone and sandymudstone recognized by laterally correlative zones of relatively low resistivity (high electrical conductivity)on borehole geophysical logs. Approximately 100-150 ft (32-45 m) thick.

Piedmont deposits (lower Pleistocene to Miocene) — Subhorizontally stratified to slightly east-tilted, reddish-brown to yellowish-brown and very pale-brown (7.5-10YR) conglomerate, gravelly sandstone, and sandstonewith subordinate siltstone and rare mudstone. Conglomerate clasts are predominantly composed of subangularto subrounded granite with subordinate metamorphic rocks, and minor subrounded limestone. May be correlativewith piedmont-slope and alluvial fan deposits of the Sierra Ladrones Formation (Machette, 1978) exposed atthe southern margin of the Albuquerque Basin. Interfingers with axial-fluvial deposits (QTsa) to the west.Moderate to low estimated hydraulic conductivity. Thickness is variable and estimated to range from 2,000-7,000 ft (610-2,135 m).

Arroyo Ojito Formation, Loma Barbon Member (lower Pleistocene to upper Miocene) — Wellconsolidated, weakly to moderately cemented, yellowish-brown to yellowish-red and reddish-brown (5-10YR),fine-grained silty sandstone with interbedded mudstone and scattered, lensoidal, weakly to well cemented,conglomeratic sandstone interbeds. Deposits are tentatively correlated to the Loma Barbon Member on thebasis of reddish-brown color and correlation to Lambert’s (1968) middle red formation. Shown as querieddeposit (Sections 25 and 36, T12N, R3E) because of restricted access to existing exposures. The Loma BarbonMember interfingers with fluvial deposits of the ancestral Rio Grande (QTsa) on adjacent quadrangles (Connell,1998; Connell et al., 1998b). Estimated thickness is over 1,400 ft (>425 m). .

Arroyo Ojito Formation, Atrisco Member (Pliocene) — Cross section only. Moderately to well consolidated,locally cemented succession of yellowish-brown to yellowish-red (2.5-10YR), fine-grained silty sandstone andmudstone (Allen et al., 1998). Named for deposits beneath the Town of Atrisco Grant (Connell et al., 1998a),where it is recognized in the subsurface by a laterally extensive interval of high electrical conductivity (lowelectrical resistivity) on borehole geophysical logs (Connell et al., 1998a, b). Borehole geophysical logs indicatethat the upper contact is conformable and gradational with the overlying fluvial deposits (QTsa), and marksthe base of an upward-coarsening megasequence that culminates in dominantly gravelly sand of the axial-fluvial deposits of the upper Santa Fe Group (QTsa and QTsau). Fine-grained and difficult to determineprovenance; however, the lateral continuity of unit, as interpreted from geophysical correlations (Connell etal., 1998a, b), suggest that this unit may be correlative to the Arroyo Ojito Formation, exposed west of themap area. Thus, this member is provisionally assigned to the Arroyo Ojito Formation. Subsurface data indicatesthat unit is approximately 280-330 ft (85-100 m) thick (Connell et al., 1998a).

Lower fluvial deposits (Pliocene to upper Miocene) — Cross section only. Fine-to coarse-grained sandstonewith interbedded compact clay and rare scattered pebbly sandstone interbeds. Regional borehole geophysicallog correlations (Connell et al., 1998a,b) suggests that unit pinches out to the east into eastern basin-marginpiedmont deposits of the upper Santa Fe Group (QTsp). May be correlative to piedmont-slope and alluvialfan deposits of the Sierra Ladrones Formation (Machette, 1978) exposed at the southern margin of theAlbuquerque Basin. May include undivided western basin-margin deposits of the Arroyo Ojito Formation. Basenot exposed, but regional thickness is estimated to be greater than 2,000 ft (610 m) thick in drillholes.

Paleogene and Cretaceous Systems

Lower Tertiary and Cretaceous sedimentary rocks, undivided (Paleogene-Cretaceous) — Cross sectiononly. Undivided lower Tertiary (probably Galisteo Formation and Lozinsky’s (1994) “Unit of Isleta No. 2”)and Cretaceous deposits. .

MESOZOIC ERATHEMJurassic and Triassic Systems

Entrada Formation — An inlier of yellowish-brown, moderately sorted, fine-medium-grained sandstone. Poorlyexposed on the hangingwall of the Rincon fault (Section 28, T12N, R4E). Stratigraphic position is ambiguous,but unit is tentatively correlated to the Entrada Formation based on sandy texture and color.

Chinle Group, undivided — Reddish-brown mudstone and yellowish-brown sandstone, probably correlativeto the Petrified Forest Formation (Van Hart, in press). Unit occurs as highly faulted inliers between the Jaral,Rincon, and Sandia faults.

PROTEROZOIC ERATHEMMesoproterozoic igneous rocks

Pegmatite dike — Dikes, pods and lenses composed of pegmatite, aplite and quartz formed during emplacementof the Sandia granite at 1,400 Ma (Kelley and Northrop, 1975 and Brookins, 1982). .

Sandia granite — Mainly megacrystic biotite monzogranite to granodiorite with K-feldspar megacrysts, upto several cm long. Intrudes the metamorphic rocks (Xqs) of Rincon Ridge. Approximately 1,400 Ma (Brookins,1982).

Paleoproterozoic metamorphic rocks

Schist, phyllite, quartzite and gneiss — Schist and phyllite with local quartzite and gneiss of the Juan Tabosequence of Hayes (1951).

Xqs

Ys

Qrpr1

Qrpr2

Qrp

Qrpc

Qrm

Qre

Qp

Qay2

af

daf

Qrps

Qrpsm

Qrpm

Qpr

QHa

Qay

Qpm

Qpm2

Qpm1

Qpo

QTsa

QTsau

QTsa2

QTsa1

QTsp

QTob

Toa

Tsal

TKu

Je

ˇc

Xqs

Ys

INDEX TO PREVIOUSGEOLOGIC MAPPING

Alameda 7.5’ Quadrangle

Hacker (1977)

Lambert (1968) (entire quadrangle)

Hayes (1951); Kelley & Northrop(1975)Connell (1996)

Corrales

SANDOVAL CO.

25

Pueblo of Sandia Reservation

Albuquerque &North Albuquerque Acres

BERNALILLO CO.

RioRancho

Rio G

rand

e

TURQUOISEHILL

OF-DM–41

MADRID

OF-DM–49

OF-DM–48OF-DM–36

LEMITAR

ABIQUIU 1:100,000

SANJUAN

PUEBLO

LYDEN

SANTODOMINGO

PUEBLO SW

SANTODOMINGOPUEBLO

TETILLAPEAK

CAÑADA

COCHITIDAM

MONTOSOPEAK

HORCADORANCH

FRIJOLES

BLAND

AGUAFRIA

SETONVILLAGE

VALLETOLEDO

GUAJEMOUNTAIN

PUYEESPAÑOLA

WHITEROCK

LOS ALAMOS 1:100,000

GM–73

OF-DM–23

LosAlamos

Santa Fe

OF-DM–42

BERNALILLONW

CERROCONEJO

JEMEZPUEBLO

SANTAANA

PUEBLO

SANFELIPE

PUEBLO

SANFELIPE

PUEBLO NE

SANYSIDRO

LOMACRESTON

GILMAN PONDEROSABEAR

SPRINGSPEAK

REDONDOPEAK

JEMEZSPRINGS

SANMIGUEL

MOUNTAIN

PICTUREROCK

CHILI

RANCHODEL

CHAPARRALSEVEN

SPRINGS

VALLESAN

ANTONIO

GM–45

GM–34

GM–27

OF-DM–15OF-DM–26OF-DM–25

OF-DM–14

OF-DM–19 OF-DM–37OF-DM–45

OF-DM–40

COLLIERDRAW

OJITOSPRING

HOLYGHOSTSPRING

LAVENTANA

SANPABLO

OF-DM–18

GM–33

GM–28

GM–26

(SKY VILLAGE NE)

(SKY VILLAGE NW)

OF-DM–46

SANDIACREST

PLACITAS

BERNALILLO

LOMAMACHETE

ARROYODE LAS

CALABACILLAS

VOLCANORANCH

LA MESITANEGRA SE

LOSGRIEGOS

WINDMESA

ISLETA HUBBELLSPRING

HAGAN

SANDIAPARK

TIJERASSEDILLO

ESCABOSAMOUNT

WASHINGTON

SANFELIPEMESA

CAPTAINDAVIS

MOUNTAIN

SANPEDRO

EDGEWOOD

CHILILI

RIOPUERCO

LOSLUNAS

SETAJIQUE MILBOURN

RANCHDALIESBOSQUE

PEAK

DALIESNW

LA MESITANEGRA

BENAVIDEZRANCH

ESTANCIA

MORIARTYSOUTH

MORIARTYNORTH

KINGDRAW

BELENNW

TOME TOME NE TORREON EWINGBELEN MOUNTAINAIRNE

BELENSW

TURNPUNTA DE

AGUAMOUNTAINAIR

VEGUITAMANZANO

PEAKWILLARD

ALBUQUERQUEWEST

ALBUQUERQUEEAST

TOME SECOMANCHERANCH

(SKY VILLAGE SE)(SKY VILLAGE)

OF-DM–2

OF-DM–9

OF-DM–10 OF-DM–6 OF-DM–1 OF-DM–29

OF-DM–35

OF-DM–20OF-DM–4

OF-DM–3

OF-DM–8OF-DM–5OF-DM–13

OF-DM–21

OF-DM–28

SOCORRO 1:100,000

ALBUQUERQUE 1:100,000

GOLDEN

Alb

uq

uer

qu

eA

rea

ALAMEDA

CAPILLAPEAK

OF-DM–27

LOSLUNAS

OF-DM–16

OF-DM–17

OF-DM–24

LA JOYANW BLACK

BUTTEBECKER

ABEYTAS

SCHOLLE

RAYO HILLSCERROMONTOSO

BECKERSW

LA JOYASAN

ACACIASILVERCREEK

SANLORENZOSPRING

MESADEL

YESO

SIERRADE LACRUZ

SOCORROLOMA

DE LASCANAS

BUSTOSWELL

WATERCANYON

LADRON

OF-DM–34

OF-DM–38

OF-DM–43

OF-DM–47

TAOS SW

CARSONRANCHOSDE TAOS

TRESRITOS

PEÑASCOTRAMPAS

TAOSJUNCTION

VELARDE

JICARITAPEAKEL VALLETRUCHASCHIMAYO

LOSCORDOVAS

TAOS

TRESOREJAS

SHADYBROOK

PUEBLOPEAK

WHEELERPEAK

ARROYOSECO

ARROYOHONDO

CERRODE LOSTAOSES

GM–71

OF-DM–12 OF-DM–33

OF-DM–22

Taos

TAOS 1:100,000

McCLURERESERVOIR ROSILLA

PEAK

ASPENBASIN

COWLESTESUQUE

GLORIETA

SANTA FE

PECOS LOWERCOLONIAS

ELKMOUNTAIN

HONEYBOY

RANCH

SIERRAMOSCA

CUNDIYO TRUCHASPEAK

PECOSFALLS

OF-DM–31

OF-DM–32

OF-DM–7

SANTA FE 1:100,000

ROWEGALISTEOBULL

CANYONNORTH

SAN YSIDRO

OF-DM–11

OF-DM–30

WILDHORSEMESA

OJOHEDIONDA RENCONA

OF-DM–39

LAGUNAORTIZ

OF-DM–50

Socorro

Grants

Taos

LasCruces

Deming

SANTA FE

Albuquerque

Van Hart (in press)

0 10 20 mi

0 10 30 km20

INDEX MAP OF NMBMMR’S

STATEMAP7.5-MINUTE GEOLOGIC QUADRANGLES

9/ 99NMBMMR STATEMAPQuadrangles Alameda

68285

84

285

84

25

40

106°00'

35°00'

34°22'30"

34°30'

107°00'

106°30'

36°00'

36°30'3

285

35°30'

105° 30'35°15'

BELEN 1:100,000

VILLANUEVA 1:100,000 Location Map

37°

35°

33°

109° 107° 105° 103°

COMMENTS TO MAP USERS

Construction and hydraulic data table for selected wells in the Alameda quadrangle and vicinity. Data interpreted and modified from Bexfield (1998),Connell and Heynekamp (1998), Jackson et al. (1998), Johnson et al. (1996), John Shomaker and Associates (1990), Groundwater ManagementIncorporated (1988 a,b,c,d), and public-domain well- log repor ts from the New Mexico Office of the State Engineer. Abbreviations include: multiplescreened intervals (M), transmissivity (T), hydraulic conductivity (K), depth below land surface (bls), elevation above mean sea level (amsl), upper piezometer(u), and no data/not determined (nd). Asterisk (*) indicates depth of constructed well, exclusive of pilot-hole depth (i.e., minimum depth of well). Doubleasterisk (**) indicates stratigraphic interpretation for entire borehole depth.

WellSymbol

Cr1Cr2DDLy1Ly3Ly4NEP

PNM-R2Po1Po2Po3Po4Po5Po6Po7Po9SCS

SPU3SPWTh1Th2Th3Th4Th5VA1VA2VA3VA4VA5Wa1Wa2We1We2

DateDrilled

(yr)

19741991nd

1959196019601997199519791973197719791978197919781960s19961988199819591958195819581989196019601960196019601980198019771977

Elevation

(ft, amsl)

528952425870528552655235546051005649560055275629563055585675565052405978543554455490541554855353514452085110520051125698559654365387

TotalDepth(ft, bls)

1,194*1,390*

570996*996*996*1,5251,4001,704*1,581*1,602*1,549*1,626*1,675*1,6261,7081,30882013231,0921,2241,2001,0203,376972*852*900*876*900*

1,715*1,786*1,4841,450

WellName

Coronado No. 1Coronado No. 2

George DudaLeyendecker No. 1Leyendecker No. 3Leyendecker No. 4

Noreste ParkPNM-Reeves

Ponderosa No. 1Ponderosa No. 2Ponderosa No. 3Ponderosa No. 4Ponderosa No. 5Ponderosa No. 6Ponderosa No. 7Ponderosa No. 9

Sister CitiesSandia Peak Utilities

Sandia PuebloThomas No. 1Thomas No. 2Thomas No. 3Thomas No. 4Thomas No. 5

Vol Andia No. 1Vol Andia No. 2Vol Andia No. 3Vol Andia No. 4Vol Andia No. 5

Walker No. 1Walker No. 2Webster No. 1Webster No. 2

SWL

(ft, bls)

388330385421393455

541 u160762736667767746672726736

340 u603

482 u595629551622489263340230327228853694537490

DateMeas.

(yr)

19961998nd

199719971996199719951998199819961997199719971987198719961988199819961996199419951998199819971997199719981996199619981995

ScreenTop

(ft, bls)

479590nd468456480538nd964801870936939852939964350nd485624696672672722300360264372260982852620608

ScreenBase

(ft, bls)

11841390nd996996996

1520nd

169315691590173816131662161316931303nd

131010921224120010201450972852900876900

1703177313451334

ScreenLength

(ft)

705800nd528540516

70 Mnd729768720802674810674729

110 Mnd

50 M468528528348728672492636504640721921725726

ScreenedUnits

QTsaQTsa

QTsp**QTsaQTsaQTsaQTsa

QTsa**QTsp, QTsa(?)

QTsp, QTsaQTsp, QTsa(?)QTsp, QTsa(?)QTsp, QTsa(?)QTsp, QTsa(?)QTsp, QTsa(?)QTsp, QTsa(?)

QTspQTsp**

QTsa, TsalQTsaQTsaQTsaQTsaQTsaQTsaQTsaQTsaQTsaQTsa

QTsp, QTsaQTsaQTsaQTsa

SpecificCapacity

(gal/min/ft)

ndndnd157129124ndndnd25552087nd2635ndndnd8347664780138139nd14710919nd11495

SpecificCapacitym3/d/m)

ndndnd

280823072218ndndnd4479843581556nd465626ndndnd

14848411180841143124682486nd

26291949340nd

20391699

T

(gal/d/ft)

ndndnd

412,000418,000366,000

ndndnd

54,000143,00036,000

318,000nd

48,00072,000

ndndnd

216,000136,000326,000299,000278,000415,000487,000

nd433,000302,00030,000

nd314,000149,000

T

(ft2/d)

ndndnd

55,07755,87948,927

ndndnd

7,21919,1164,81342,511

nd6,4179,625

ndndnd

28,87518,18143,58039,97137,16355,47865,103

nd57,88440,3724,010

nd41,97619,918

K

(ft/d)

ndndnd

104.31103.4894.82

ndndnd

9.4026.556.0063.07

nd9.5213.20

ndndnd

61.7034.4382.54114.8651.0582.56

132.32nd

114.8563.085.56nd

57.9027.44

K

(m/d)

ndndnd

31.7931.5428.90

ndndnd

2.868.091.83

19.22nd

2.904.02ndndnd

18.8110.5025.1635.0115.5625.1640.33

nd35.0119.231.70nd

17.658.36

NEW

MEXICO

S

TATE M A

P

NM

Bu

re

au

of Mines & MineralR

e

so

ur

ce

s

Earth Science for the 21st Century

Ne w Me x i c o Tech

Dr. Peter A. ScholleDirector and State Geologist

Dr. Paul W . BauerGeologic MappingProgram Director

Tentative correlations of alluvial units in the study area, based upon stratigraphic relations,landscape-topographic position, degree of soil development and physical correlation of units.

This Study

QHa, QHao

Qrp, Qrp1-2, Qrpc, Qrps,Qrpsm, Qrpm

Qay

Qay2

Qrm

Qre

Qpm

Qpo

QTob, QTsp

Connell (1996)

Q9

Qfp9

Q8

Q7

Qoa2

Qoa1

Q6

Q5, Q4, Q3

Q2, QT1

Lambert (1968)

Qya

Qfa

Qya

Qya

Qm

Qe

Qop

Qop

Qu(?)s, Tm

• • • • •

76

• • • • • •

AM

We1

Mo5A

UD

17

llll

??

A A'

No2

87

34

AM

CORRELATION OF UNITS

SEDIMENTARY

PolarityChron

Nor

th A

mer

ican

Lan

d M

amm

al "

Age

"

Mar

ine

Oxy

gen

Isot

ope

Sta

ge

1

3

5

7

9

11

13

15

19

21

notshown

not shown

Holocene

Ple

isto

cene

Plio

cen

eM

ioce

nela

tem

iddl

e

Bru

nhes

Ran

chol

abre

anIr

ving

toni

anB

lanc

an

early

Mat

uyam

aG

ilber

tG

aussla

teea

rly

0 ka

10

780

1.8 Ma

5.3

23.7

36.6

57.8

128

66.4

Oligocene

Eocene

Paleocene

Qay

Qay2

QHa afdaf

Toa

Qpo

QprQrp

Qrpr

Qrps Qrpm

Qre

Qrm

Major unconformity

Major unconformity

Major unconformity

Major unconformity

QTsa

TKu

Qpm

Qpm2

QHao

Base not exposed

Neo

gen

e (T

ertia

ry &

Qua

tern

ary)

Pal

eo

ge

ne

CE

NO

ZO

IC

Qrpr2

Qrpr1

Qrpc Qrpsm

Qpm1

Qp

QTsau

QTsp

QTsa2

QTsa1

QTob

Tsal

Je (?)

ˇc

Xqs

Yp

Cretaceous

Jurrasic

Triassic

Mesoproterozoic

Paleoproterozoic

ME

SO

ZO

ICP

RO

TER

OZ

OIC

? ?

? ?

Major unconformity

Major unconformity

Ys

Qay

Qay2

QHa afdaf

Toa

Qpo

QprQrp

Qrpr

Qrps Qrpm

Qre

Qrm

QTsa

TKu

Qpm

Qpm2

QHaoQrpr2

Qrpr1

Qrpc Qrpsm

Qpm1

Qp

QTsau

QTsp

QTsa2

QTsa1

QTob

Tsal

Je (?)

ˇc

Xqs

Yp

Ys