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OIL AND GAS INVESTIGATIONS PRELIMINARY MAP 86 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY COLUMNAR SECTION -, •*• , • r ' -> j .. r- CHARACTER OF ROCKS Bituminous •ftdfttw; M » M M -MffHtad B H v m a u i wjndalwwi madfym «np«fF«borh. Iimom-se alains SP»-»; t*Hf, d«nM. thin bfcdded BrrumKWi a*ftdtfD«a: rch irr pratnartwr becow^f Iwi * 1 t o » » cret-birfdwg «rrw wa to *in bedded WJidrton* giadm*. aila »>-ti*on> a*d barnan shrit Swdy ahate; bufi S&tdiiofla; fm*-giained, wrth fcrtuffw*** b*-.di £S»m4a»*aJid aaody ah»U;. C » T - P > « I S3 brturr.*w« •ht*cont»flinr OfttfcdKt* M M M | cafertacrjnrtals SUt^ fnr C"rt'-:odi cmwitid wrtf brtunw" H S*ndy ahala tP aiftrtwra; bv^f to Ban Brtuminou* aandftor*; efMa-baddtrf 5 i - d j «ha*K b u f f t o f n y Dokxrribc liffwrtDTiB: ffow, d « i » aligfttlsr brtwminiHia Sha*a; P M P * w > * • * * nr*ttfv*. hutt Lin94*1 nna: Wbwninout plant ar=d boM-fia«ir4flU S * * * |T**n BJtMntfiou. aandftcrw; taa* irp pregnaUnn S H*1oft*; brawn t» tan Dolwrrta; dip.tl* brtuiwowt S*ndH»ia: Ihui-lwdfl^d, wich V-fni^tbwMriwrrfr*"^*! ^tum^OJi «*nd*t*wi ewtnaeoda »v UBPK 2'. I' 0* pa* V—n w * i t * rmdd4* Sh*J«; p r f w ia * ' * r i * " > * « < * gray Si r •: i • -.-- =. buff Sha**; (Tajr*™**! Brtumuwu* wndston* mth o*1r«od*; madium W nc* im-ptaenatiwi nttriwddM tha**. acattartd fis* *btlai Sandy •*•*•;. B^jf-xnwn w*th purpt*- brawn rr*tt)in£, frabtt fl -Oc^nkcOd icn-a of brtunwnou* sand-Hone Shale; ied-piirpiHp si»jf-(ia*r, jr»d>n« ;p aa*dy ahal* -Red ***•• «?th cafcrt* rtwltu . . :>rain; (. ? *T*S re * r '' • r "d **••*• ,IIT| y. •*»!• -vBVhunnoui *and*lon*; law <mprtsnaT»Oft ~~——- - Shala; -rtntg^ted F J I B * * and t r a m wrth- bufl rawrttiinfc compact -? San^tta - **: &n *Mcep" » h w i yeihiwr From ^^Ofi-rt* * t a * * v+rr S^wla; puapla rnottJad 5*nd*t*w: bufl. firw-fFain*d, banen BVtunnanoui ( a n d r W i a , laan i m p r t p w l w . ShaJa; purpt* t* g n j - p a * ^ locaflr auidp fetummoua aandaW*: madiuan irp.pn«Ti*1Jon S t r J j *hat« and -wnKroM-: whrta-jnijr, fnaWw Oar and ihata: P«nj»* rroHWL F*d-Ar-i«alh*rinir Silun-=i*M* •andatone; madwm .mpmgjnabon Shale anrf tbjrtona; rad and purjJe Umy the*?: jiajr-jwan, *4JI-*iactvf»d ^ r ^ - f r t u n w w u a aarJiKWw; lean LmprapiaBOn, fine-jrain«J Sandy aha**^ i n j f - l j w w Sandsionar *««. •fina-pawad. con: part, il&ftiy brturruujut, eontanna; • -r-y ahale mambaf-a and « a l cijjf ro^ei -Urrj s**i*: gray. •*»i-c*n'4fllad Brtumjnoua ^ndaiona. baccvninj l»irar. naartep. C«tams ottsicodi Lin-i s-ait: jiaif-wMa, con-pad. Oilracod uona. camaniad with brtuman f^ : UmrthaloL tf-aj. corr.oact Bihimmoua *and*txma: tan. two*** riraaka. wdl cam*nt«d Umj ahafe; (nj> «rrtaina«tTacoda B*twmr»Oui rfndaiono; saarv co^tior^ ottaeoda Unvp ehaW; inVie, ttun-baddWL « r , t a w n-«njr ort-accd-i fliiun- p^t sarjitw*: rich impntgnation at croja-baddad al baat S*alj aanartan*: i«H: fn*. thin-baddad Brt^nmou* **aaj aandirtca*; t»in-padd*d. compart mmmm ;7*».:* i*,- r :"-' l .- , ••- s-rffc'*-:- ••>7 Bitv^iinoua sandjlone; laanat baa*. ImaHfjatMai batflnna* richaa as crota-tadWinj incraaaes. S r * - a * n e d . rraaanra, ^-rsHnmri. emeacaoua -" iV^rVv^;^ vN -r- S-'^l) 1 aandhrtona; ttun-baddad - Shala; eij-e-ear^ waii'-lnKlurad. con tuning.-*" ft*3 t-« ^ SaAdt^ona; tan, fine . IJaaaaaaafK den»e )& ^^>^ Red *--aie; motttad auisla al feaaa Sandtt-on*; buHf. fine-s*atned. compacl Shale; eti^-gpoe*-. M a * Ktunnrtoui aandaione; Ccnwad: aanditono? nanbad i-camantad, ::- •itjn-iroua aardifo^a; m*dMjm in- piafni^ion Shale, fcrny iha** and dofonmte-; thm-badyed. ce^Vd WaHa, containing 3' eon* o? waaHwead, toastf-bean-j; riigUti} 1 arhjw r«-ji aandalone Brt.*ninoua aand*1one^ *»ch mprac-a" >•. •"•'•' Jl> "i Saftdnona; 'nab* Bttuminouc sardirone; hkan wnpfCtpatKin, than-baddad EXPLANATION FOR FIGURES I AND 2 to i Surficial deposits < cr UJ < JO g^ Green River formation < Q: V Wasatch formation y Bituminous sandstone Stippling indtcotes poorly saturated beds Geologic contact Inferred geologic contact ,5 y Strike ond dip Fault, D shows downthrown side Line of section Quarry and dump Prospect pit i -26 Sample numbers Triangulation station of this survey Oolitic limestone bed with ostrocodes ^ ^ Improved roads Geology and topography b> Clifford r\f. Holmes and Ben M. Page. Surveyed inms FIGURE L GEOLOGIC MAP OF BITUMINOUS SANDSTONE DEPOSITS NEAR QUARRIES OF THE ROCK ASPHALT COMPANY OF UTAH Area mapped is shown by small rectangle on figure 2 Unimproved roads 500 500 IjOOO F = |,50QFeet Contour interval £0 feet, datum mean «a level FIGURE 3. COLUMAR SECTION MEASURED ALONG LINE A-A ON FIGURE I EXPLANATION OF COLUMNAR SECTION Sandstone C ross- bed de d sandstone L9400 ^s* £S • * " ' Limestone Limestone with oolites «-.'•.- . o - ,fr'.%-.>'>v-y Stream te rrace deposits / / „ / / / .-' t , / / v I i / p ' i / / V Shale Sandy shale Siitstone Clay stone Dolomite _9000 FIGURE 4. CROSS SECTION ALONG LINE A-A' ON FIGURE I Horizontal scale same as scale of figure I. No vertical exaggeration FIGURE 2. MAP SHOWING DISTRIBUTION OF BITUMINOUS SANDSTONE Bose mop compiJed from township plots of Ihe General Lend Office, S..™™n»"te.,™« 0 u.& DEPOSITS NEAR SUNNYSIDE, CARBON COUNTY, UTAH Geological Survey topooraphfc map of surmysrde quadrangle. Wasatch and Green River formations not differentiated VERTICAL SCALE OF COLUMNAR SECTION I Mile 50 100 150 Feet GEOLOGF OF THE BITUKIHOUS SANDSTONE DEPOSITS NEAR 3USNYSIDE, CARBOK COUNTY, UTAH Tbe bltualaaiia aendstcat deposits aur Sunnjslde, Carbon Oounty,, TTtab, nblcb are tbe largast known In tae r-itei States, f*ere ttxaaltLed by the 0. 3. G-sologi<J*l &arv*j for the purpose of appraising ttts deposits as a possible source of petroleum products. Tbe field nork was done by Clifford V. Solmss, Ben M. Page, and Paul Arerltt during the aimer and fall of 1946. An area of about 1 sq-usre * l l e In toe riclnlty of tne ouarrias of the Ec-ck Asphalt Co. of Utah was Mapped by plana table on a scale of 400 feat to tbe Inch. In tola area toe topograph? nas sapped by contours dram at 20-foot Intervals. A aap of the deposits throughout an adjoining area of approximately 14 square nlles was prepared on a seals of 2 P CXW f e e t t o t b e Inch. Tbe bitiralncras sandstone deposits I n t h i s larger area were plotted In the f i e l d o n enlarged aerial anaalcs and transferred to a controlled planJjaetric base sap prepared by the Soil Conservation Service, TT. 3* Department of Agriculture. The township and section l i n e s were taken froa the Sunnvslde topographic quadrangle sheet. These naps are shown In flgurss 1 and 2 respectively. Conservatively eatlatatedj the deposits nee.r Sunnyslde contain 1,500,000,000 cubic rardi of bituminous sandstone, half of which la believed to contain at least 9 par cent bitumen, by weight. Tha bltnadnoits sandstone occurs in bads ranging from 10 feet to 350 feet In thickness within a sone shout 1,000 feet thick In the uppar part of the Uasatcb formation and in the lower part of the overlying Green Blver fomatlon- Tbe beds lie at elevations between 9,000 and 10,000 feet near the top of the Bock Cliffs, a southwest-facing escarpment carved in gentle north- to northwest-dipping rocks on the southern aargln of tas Uinta Baals. Because of the presence of the resistant bituminous sandstone beds, this escarpment near Sunnyslde is steep and rugged and ovsrlooks a wide belt of mountainous terrain carved In tha leas resistant rocks in tbe lower part of the Wasatch forma- tion. BTorth and northeast of the crest of tha escarpment the terrain la essentially a broad, somewhat dissected plateau formed on a gentle dip slope of shale of the Green River formation. The bituminous deposits can be reached by a T-alle drive on a secondary road from tbe coal-mining village of Sunnvslde,. a terminal point on a spur of the Denver and Rio Grande Western Railroad. Tha bituminous deposits near Sunnyside mere first opened at the small quarry near station D (fig. 1) In 1392, and operated for a year or longer, during which time shout 1,000 tons of rock was removed. This material was used for street paving in. 3alt Lake City, Utah. The quarry was next operated In 1902-03 whan an additional 1,000 tone we.9 mined. A new quarry site, now tha largest quarry shown on figure 1, was opened by the Utah Asphalt Co. in 1915, and about 3,000 tons of rock was removed before It shut down in 1916 or 1917. This quarry was reopened by the Utah Rock Asphalt Corp. In 1927 and worked u n t i l 1 9 3 1 ; during that period about 25,000 to 30,000 tons of the bituminous sandstone were mined. In 1931 the owershlp of the quarry passed to the present operator, the Bock Asphalt.Go. of Utah; the quarry has bs-wt wo-z&ed more o r l e s s continuously sines that date. The production from 1931 through 1945 totaled approximately 300,000 tons, making an all-time total of about 335,000 tons, f i e J S J M J output now averages 20,000 to 30,000 tons, all of which is crushed and used without further treatment for paving streets, highways r airplane landing strips, tennis courts, and the Ilka. Although the material la consumed mostly in Utah and Colorado, small shipments are made to Kansas, •e&raska, "erada, and Wyoming. The writers gratefully acknowledge the assistance and information received from Mr. Banry B. Jones, former production manager of the Bock Asphalt Co. of Utah st Bunnyslde. Previous work.—Although the bituminous rock quarries near Sunnyside have been visited by many geologists and engineers, tbe deposits have never before been surveyed, and only casual de9crlp~ t l o n s o f them appear In the geologic literature. The topography of tbe region is shown cm a scale of about 1 inch to the mile on the Sunnyside quadrangle of tbe u. 3- Geological Survey, and also on photographic mosaic quadrangle Bo. 163 of the Soil Conservation Service. The regional geology is discussed In a £«nD|*t on ecal resources of the Cast legate, Wellington, and Sunnyside quad- rajigles,l/ and tbe bituminous aandstone occurrence is described ID two short paragraphs In a report by Bard and Ball,^/ cited here particularly f o r i t s comprehensive bibliography on the solid hydro- carbons of the Units Basin. STRATroEUpar The rocks in c-he area here described form a continuous depositions! sequence made up chiefly of nonasrlns sandstone and shale of Eocene age. This sequence is divided, on tbe basis of llthology and mode of deposition. Into two units, the Wasatch and Green River formations. The lower part of the sequence, which is c h i e f l y f l u v l a t l l s , is assigned to the Wasatch formation, and the upper part, chiefly lacustrine, is assigned to the Green Rlter formation. The transition between the two formatlona, however, la gradatlonal throughout an interval of several hundred feet. The writers place the boundary where d o m l n a n t l y f l u v l s t i l e strata below give way to domlnantlr lacustrine sediments above, but each of tha two formations contains beds characteristic of the other. The stream-deposited beds tend to be lenticular, and of small lateral extent. Moreover, they exhibit marked changes I n f a d e s , and many local disconforallies. The lacustrine beds, on the other hand, are strikingly uniform and persistent. The llthologlc details of the two formations are shown in the columnar section {fig- 3]» Wasatch fo] .tlon The Wasatch formation, of lower Eocene age, contains the bulk of the bituminous sandstone deposits, and makes up most of the steep face of the Book Cliffs. The formation is 3,750 feet thick in the Sunnyaide quadreregle.sy Only the upper third, In which the bitumi- nous sandstone beds contained In the formation are concentrated, was examined during the course of the present inTaatigstlon. In the bills north of Colton, Utah County, Utah, beds thought to be equiva- lent to the uppermost part of the Wasatch have been designated the Colton formatton.4/ The discontinuous and lenticular nature of the beds In the Colton formation, however, makes regional correlations with the Sunnyside area Impossible until further detailed work Is completed. The columnar section, figure 3, shows only tbe upper third of the Wasatch formation above a conspicuous red shale member, which is a convenient and easily recognisable datum. The llthology shown, however, is typical of the entire formation, which consist* predomi- nantly of sandstone interbedded with shale and to a lesser extent with beds of thin Limestone. The sandstone beds, whether bituminous or not, are fine— to medium-grained, thin- to masslTS-beddsd, and lenticular. Cosmunly they exhibit cross bedding and are underlain by a l o c a l 1 - to 2-foot latrafomational conglomerate la. which angular pebbles and -cobbles of white ahale and yellow-weathering limestone are prominent. These conglomerates, and t o a leaser extent tbe aandstone overlying them, locally contain fragments of bones and teeth, as well as black, polished plates of gar pike (Leplsoateus ) . The constituent mineral grains- are principally eubrounded quarts, orthoclaas, ndcrocllne, and plaglcciaae, with subordinate amounts of Muscovite and chalcedony. Ferromagneslan minerals are rare- A small amount o f i n t e r s t i t i a l calclte Is present in soma of the aandstone beds. In weathered out- crops the barren sandstone beds are light buff In color. Intervening between the sandstone beds in the upper third of the formation are many varieties of shale and mudstone. These Include pale-gray shale; hard, brittle blue-green clay shale; b'-lttl* , greenish-gray silty ahale j. and brittle mudstone Lacklng^smalyT cleav- age . The mudstone beds range in color from maroon to brick red sad purple red, and are, therefore, very conspicuous. The shale beds contain fragments of leaves and plant sterna, but tbeae fosslla are uncommon in the mudstone. The upper part of the Wasatch formation slao contains several thin calcareous beds i-foot to 5 f e e t thick. These Include beds of hard, dense, white--neatherlng limestone, oatrecode beds resembling oolitic limestone, and yellow-weathering," sandy beds containing oatra-codes. All three varieties of calcareous beds are locally some- what bituminous, Fossils occurring in the upper part of the Wasatch formation consist principally of bone and plant fragments, fish scales, and small gastropods. Several different forms that have been identi- fied are: gar pike or Leplsoateus cuneatus Cops, Knight la atta (LeldyJ, crocodile or Kloplosua cf. aborevtatus Cope, t u r t l e ( T J , the fresh-water gastropoda 'Flsuaorbla^ spectabTlls Heek, Physa aff. P. pieromatis White, Gonlobasls tenera Ball, and Fbyaa aff. P> brldjgerenals neekj u well as fns oh-water oatracoies, algae, and leaves of plants related t o t h e Eucalyptus. The Invertebrates are without exception forma that are wldeapraad in the lower Socene, but whose l i m i t o f range upward is not nail known. Most of those found are pond and lake dwellers whereas a m o r e f l u v l a t i l a environawnt Is suggested by the gar pike and crocodile. Although tbe fresh-water ostrocodes have potential value for correlation, they are at present l i t t l e known and consequently have little stratlgrapblc value, Gr^sn River formation The Green River formation, of middle Eocene age, la in tlonal contact with the underlying Wasatch formation and f< crest and dip slope of the Book Cliffs. The bsaal part of tin tlon, exposed In tbe area mapped. Is composed largely of pale greenlab-gray msidatone and thin-bedded shale of lacustrine origin, interbedded with aandstone of fljvlatlls origin. Contained In the shale are many thin calcareous layers, some of which are marlBtone and some limestone. These beds are J-foot to 5 f e e t t h i c k , and are moatly white weathering, dense, and hard. Hany are dark and bitumi- nous on freab surfaces. The limestone layers occasionally show small, rough, concentric head spheres of algal colonies, and, T*ry rarely, large blacult-ahaped algal maaaes S o r 3 f e e t long. In. the are* shown on figure 1 the formation contains two or three strikingly continuous 1-foot beds of varved ell shale, which are black on freah aurfaces, but which weather Into very thin *hite sheets. Fragmental fish remains are numerous in tbe o i l s h a l e , and rare in other parte of the formation, fossil leaves and other plant remains are present throughout tha formation. Tbe sandstone beds contained In the lower part of the Green Hirer formation are similar In appearance and origin to those in the underlying Wasatch. In the area shown on figure 1 these beds are bltomlnoua, but for the most part are less than 12 feet thick, and not of economic value. Surficial deposits I n common w i t h o t h e r a r e a s In north-central Utah, the lo»er reaches of all streams in the Sunnyside region were extenelvaly alluvlated during Pleistocene time, and are now being reexcarated, In tha area show on figure 1, all of which is above B,000 feet in altitude, t h i s v a l l e y f i l l i n g w a s accomplished mainly by mud flows and land elides, and in part by depoaltlon in streams behind such obstructions. The surficial accumulation la composed exclusively of debris from the Wasatch and Green River foraattona. It contalna fragments of all alssa and abapee, with rudimentary stratification or none. Since the climatic or physiographic change t h a t p g ™ ^ a d tea resumption of normal stream ere a Ion took place, the streama In. tbe area shown on figure 1 have cut through at least 150 feet of this material, leaving local remnants as terraces along tbe valley sides. STRUCTURE In the area shown on the accompanying maps tbe structure is essentially homocllnal; the rocia dip 3* to 10* HE into the TJJnta Basin, toward tbe northwest end of the mapped area and beyond, the strike of the beda changes gradually westward forming an arc easen- tlally parallel to tbe Cretaceous rim rock of the San Rafael Swell* a large eroded dome whose center lies about 50 mllea to tbe south. The rocks are broken by several vertical faults with displace- ments ranging from 1 to about ISO f e e t , and locally systems o f v e r t i - cal Joints may be observed, as in the sandstone promontories in the amphitheatre at the head of Water Canyon, lo reversals of dip are present* BTTUnlBTOUS 3AJTST01TB DEPOSITS The bituminous ssndstone deposits, knows locally as *rock asphalt,* consist of numerous beds, from s few inches to as much as 550 feet thick, which Individually may extend several thousand feet along the strike. The d e p o s i t s extend about 9 ml lea along tbe oat- crop, and are confined to a vertical stratlgrapblc interval of 1,000 feet. The accompanying maps show tha outcrops of all bituminous beds of possible economic value along the front of the Book Cliffs. Thin bituminous beds continue northwestward, however, beyond the limits of the area shown on the maps. Similarly, bituminous beds are exposed in valleys on the dip slops northeast of the Book Cliffs, particularly in the headwaters of Dry and Range Greeks. In the time available to the writers It was not possible t o map the beds northeast of the crest of the Book Cliffs, but several reconnaissance visits In the deeply Incised Hlddle and South Fhrka of Dry Creek revealed that tbe bituminous section has there been cut by the stream* In the South Fork of Dry Creek the bituminous beds are somewhat thinner, but otherwise comparable to those on the face of t h e C l i f f s . Ths bituminous beds on the front of the Book Cliffs are very resistant and crop out conspicuously on the steeper slopes. Typi- cally they are battleship gray, or infrequently, light buff on weathered surfaces. When f r e s h l y b r o k e n , however, the rock Is gener- a l l y b l a c k , and the bleached exterior Is seen t o b e leas than 1/16 inch thick. Host of the beds that are only slightly bituminous are light to medium brown tairoughout* Some of the bituminous sandstone beds a r e f a i r l y w e l l stratified and a few of them are thin-bedded, weathering into plates 1 to 4 Ir.ches thick. Cross bedding is commonplace, but by no asana universal. In ths richer beds where tha pore apace appears to be e n t i r e l y f i l l e d , no stratification of any kind la visible. A l l o f the beds are lenticular, and many of them clearly occupy broad chsnnela cut Into underlying shale and thin limestone. Host of the bituminous beds are underlain and overlain by shale, and wedge out laterally in shale, the occurrence of bitumen clearly being bounded by th* impervious layers. In other beds, ths bituminous sands tons gives way to barren sandstone downward or along the strike, as though there had been Insufficient bitumen to invade all of the host rock. At contacts between the Impregnated material and barren sand- stone, ths change Is very gradual In some local It lea end abrupt In others. In both types of occurrence the contacts between bituminous and barren parts of tbe beds are generally highly Irregular, unlike tbe smooth, even contact that wight- be ejpectad tc result a t a n o i l - water interface. As shown in the tables below, tbe porosity of the bituminous aandstone ranges between 25 end 50 per cent by volume; the pBrme- abllity, baaed on four determinations, ranges between 154 and 6-77 millldarcles. L i t t l e o r n o w a t e r I s p r e s e n t i n t h e i n t e r s t i t i a l space. On the whole the bituminous sandstone is cults hard, tough, and tenacious, requiring drilling end blasting In quarrying. I n h o t weather, however, the outer surfaces of the bituminous beds soften slightly, and asphalt aosea from sunlit aurfaces In pencil-sized s*epa p the rate of flow being almost Imperceptible, to large seep- sgea are known in the district. Grade and nature of bitumen.—The bituminous c&ntflnt Of the Bens L U t h e d i s t r i c t r a n g e s from a few per cent to a l i t t l e more than 13 per cent by weight. According to ftr. Henry HI Jones, former production manager of the Bock Asphalt Co. of Utah, the sandstone now being quarried contains an average bitumen content of 10^ par cent, and all shipments exceed 9 per cant. The tables below give tbe results of analyses by the oil and Gas Laboratory of tbe Geological Survey at Casper, Wyo-, of samples c o l l e c t e d f r o m l o c a l i t i e s abown on the ac[Mjnspanying saps, ftost of these samples were taken from Meathered outcrops and slightly weathered surfaces In abandoned quarries and prospect pits, and, therefore, are not representative of fresh material. Sample sTo. 1 was taken from a continuous barren tone within *a impregnated bituminous sandstone bad and Sample Sc. 6 from a barren eandstone bed that grades laterally into a well-impregnated outcrop* Theae samples were selected for the purpose of porosity and perme- ability analyses and are not indicative of the over-all bitumen con- tent. On the basis of visual comparison between weathered and unweathered bituminous rock In the operating cuarry, and weathered rock elsewhere In t h e d i s t r i c t , It is Likely that at least half of the material shown as bituminous sandstone on the accompanying particularly In the thicker bnds In the central part of the recon^ n a l s s a n c e map (fig. 2), Is comparable to that in the operating quarry. Ihe accompanying tables also show the results of analyses of the extracted bitumen, and include the data on the porosity and permeability of a few selected samples. Reserves Tbe reserves of bituminous sandstone In the area mapped (fig. 2) total 1,600,000,000 cubic yards, of which 900,000,000 sable yards is either measured or Indicated by geologic evidence, and 700,000,000 cubic yards la inferred. These results were obtained by combining separate calculations for each of 32 small sub-areas in which the bituminous sandstone beda appeared to maintain uniform thickness. The total thickness of bituminous sandstone in each sub- area was obtained by adding the thicknesses of the Individual beds, and assuming that a single bed extended throughout the sub-area. From the outcrop of the beds to &n arbitrary line 1,000 feet down d i p from the c r e s t o f t h e Book Cliffs, tbe thickness of tbe bitumi- nous rock was assumed to be uniform, and the calculated ressrves sre classed as measured, or Indicated. Down d i p b e l o w t h i s a r b i t r a r y line, where the bituminous beds are under cover, the bituminous rock was assumed to than uniformly to a hypothetical cero line, drawn to enclose a belt 4,000 feet wide at the center of tbe deposits where the bltumlnoua beds have the greatest thickness, and tapering to 1,000 feet wide st the ends of the deposit where the bituminous beds are thinner. The calculated reserves in t h i s b e l t a r e classed as inferred. Slightly bttuminoua beds, and all beds less than 1 0 f e a t thick were excluded in preparing the extlmates. In the area of the detailed map, figure 1, the reserves were recalculated bed by bed, and the results obtained were in close accord with those obtained in the comparable sub-area on the small- scale map. In the area of the detailed map, the measured and Indi- cated reserves are 226,000,000 cubic yards, and additional Inferred reserves are 46,500,000 cubic yards. These amounts are Included in the totals above. From tbe data available on the grade of material, It is reason- able Lo assume that one half of tbe total reserves contains at least 9 per cent bitumen by weight. Katerlal of this grade, therefore, totals 450,000,000 cubic yards of measured and indicated bituminous sandatone, and 350,000,000 cubic yards of inferred bituminous sand- atone. The bi Lumen. In the Sunnyside deposits has a specific gravity of 1.0. Assuming that the bituminous sandstone has a specific gravity of 2,1 and a cltumen content of 9 per cent by weight, a cubic yard of bltumlnoua sandstone weights 1.77 tons, and contains 3LB-.8- pounds of bitumen. As a gallon of bitumen -neighs 6.345 pounds, a cubic yard of bituminous samdatone contains 3S.2 gallons of bitumen. On this basis the measured and indicated bituminous sandatone con- tains at least 409,500,000 barrels of bitumen, and tbe Inferred material contains 318,500,000 barrels. This makes a total of 728,000,000 barrels, exclusive cf material assur.ee. to contain less than 9 per cent bitumen. ?.<eLhcla o- 3.-^5.rrji~r &'-c zxiramtior- The present operators are removing material from two adjoining quarries ( s e e f i g . 1] In a thick bituminous sandatone bed near the base of the bituminous aone. These ojitarrles l i e a t a n a l t i t u d e o f about 9,000 feet on the steep front of the Soot Cliffs. Tbe quarried rock Is lowered to an altitude of 7,250 feet by a 3-mile aerial tram^ which functions by gravity. From the foot of the tram, tbe bitumi- nous sandstone is taken by truck to the crushing plant at Sunnyside, where the finished product Is subsequently loaded Into railroad cars for shipment. As the bltumlnoas bed being quarried is covered by a thick over- burden, like most of t h o s e i n t h e d i s t r i c t , and aa the quarry walls on the mountain side sre steep and high. I t i s l i k e l y t h a t t h e present operations w i l l b e extended Laterally along the outcrop where the overburden Is less. If new operations are started, tbey will also be,- for the moat part, In the cone of outcrop. Although 335,000 tons have been removed from the two large quarrlea shown on figure 1, the area shown on that figure offers many comparable sites for such operations. Several small areas In tha d i s t r i c t o f f e r possibilities for strip mining that might be Investigated by those Interested In a mora economical method of extracting the material. Among t h e s e are the long ridge that forms the western boundary of the area ehpwn on figure 1; the saddle northwest of Bruin Point between Bruin Creek and South Fork of Dry Creek (fig. 2); and the area of broad outcrops on tbe divide between the heads of left Fork and Sllds Canyon of Right Pork {fig. S>. As it Is possible that the grade of material In the last-named locality is lower than it is In and near the present quarries, a careful sampling program should precede opera- tions in this area. although the bituminous sandstone In ths Sunnyside area Is now used only for surfacing material, it offers possibilities as a source of extracted bitumen, which might be converted to f u e l o i l and other petroleum products. The deposits near Sunnyside have several natural advantages as a source of extracted bitumen. First, the reserves are adequate for large-scale operations* Second, the deposits occur In an area of high relief where diaposal of tha residual sand! would present no serious problem. Third, the extract- ed bitumen or secondary products could be moved by gravity to the railroad terminal at Sunnyside. Although no systematic attempts have bean made to extract the bitumen from the bituminous aandstone beda near Sunnyalds-, experi- mental work haa been carried out by the U. 3. Bureau of nines and several Independent companies on similar bltumlnoua sands tons de- posits In California 5/ and at Athabaska, Alberta, Cansda.,6/ and there Is l i t t l e d o u b t that workable and economically feasible pro- cesses will be developed. 1/ Clark, P. B., Ecooaaic geology of tbe Castlesste, Wellington, and SunojBlda quadraafUs, Uarban. County, Utah: U. S. GeoU Surwy Bull, 793, pp. 1-2*, l?2fl. 2/ Bart, dark P., and Ball, Jaaes Cfden, ^rocarbons of the Uinta Basin of LFtah and Colorado: Colorado School of Kinw quart,, vol. 39, DO. 1, pp. 12 and 3 L 1 * 4 , i/ Clark, P. R.j op. tit., p. 21, A/ Spiefcer, fcdmund M., late Heaozolc and Early Cawzole history of central Mm S« Gael. Survey Prof. Paper 205 B, p. 139, ISfci. shore, C. L., Personal comauoieatlon. H i s , S. C* Bituminous sands of narUntrn Alberta: Canada Dept. HLnes, Bxase Branch, Sept. (,32, 192fi. I EITtfHEK COKTFJBT, WATER C&jfTn><"*\ FORC3ITT, ASP PBRHEABILITT OP SAfffXaS FttOW THE BlTunlFCUS 3A3T3TCBE DEPOSITS HEAR S?TffliTSIDK, CARBOB COOBfrT, UPAS 3ampla To* 1 E 3 4 6 7 8 « 10 U IS 13 14 15 16 17 18 19 SO 21 es S3 24 25 26 E7 Bitumen content percent by wel , m ,. 2.61 7.17 11.23 7.97 10.14 11.26 7.57 6.53 11.39 10*91 10-. 05 10.85 6.51 9.50 8*79 12.00 13.53 10 ."95 7.36 3.39 5.66 4.30 9.65 6.65 ght . Water content percent by m _ | . _ 0.10 0.10 0.10 0.05 — _ 0.06 0*04 0.03 0.20 0.45 0.11 0.7O 0.07 0.1S 0.36 0.15 0.04 0.O6 0.01 0.09 0.10 0.17 0.2O 0.01 weight Percent effec- tive pore 29*7 S9.5 25.0 27.1 29.3 . -»— —- 30.1 -.-— 28.7 ---.. space* Permeability* fmllltdarcles) 308 677 _ _~_ 320 ... —- 154 —. — - * After removal of tUumen from Samples so*. 1, 2, &, 7, A, 30, and 25. PROPERTIES OF EXTRACTED ASPHALT PBOfl THE B rTuTJTsTOUS SaJTOSTOJIE DEPOSITS SEAJt SUKBTSEDB, CAKBOB" COusTTT. UTAH Sample To. S p . g r . at 60* P. S p . g r . at T7 n F. Soft point Pene- tration Soft point Index 51 rj=en soluble use fpercent) 31 T_j=5r: soluble CCU (pare east) Ash [percent] Ducti- lity 39.2* P. Ducti- lity 77* F 6 7 16,17,16 20 23 27 1.010 1.006 ...— 1.017 1.01O 1.015 1.004 0.9998 ——_ 1.011 1.004 1.009 LIS loe 246 115 106 113 lie 141 .,— 96 160 101 -0.2 -0.6 -0.5 -0.7 -0.7 99.57 99.66 99.70 99.73 99.40 99.77 99. Bl 99.32 99.37 99.70 99.70 3S 26 2& 32 196* 151 196+ 176 15B Drafted by Freda H. Spurrier. GEOLOGY OF THE BITUMINOUS SANDSTONE DEPOSITS NEAR SUNNYSIDE, CARBON COUNTY, UTAH OIL AND GAS INVESTIGATIONS PRELIMINARY MAP 86 by Clifford N. Holmes, Ben M. Page, and Paul Averitt 1948 UTAH GEOLOG/CAL SURVEY

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OIL AND GAS INVESTIGATIONS PRELIMINARY MAP 86

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY

COLUMNAR SECTION

-, •*• , • r ' -> j .. r-

CHARACTER OF ROCKS

Bituminous • f t d f t t w ; M » M M

- M f f H t a d

B H v m a u i wjndalwwi madfym «np«fF«borh. Iimom-se alains

S P » - » ; t*Hf, d«nM. thin bfcdded

Br rumKWi a*ftdtfD«a: rch irr pratnartwr becow^f I w i * 1 t o » » c r e t - b i r f d w g « r r w wa to * i n bedded WJidrton* giadm*. aila »>-ti*on> a*d barnan shrit

S w d y ahate; bufi S&tdiiofla; fm*-giained, wrth fcrtuffw*** b*-.di

£S»m4a»*aJid aaody ah»U;. C » T - P > « I S 3 br turr . *w« • h t * c o n t » f l i n r OfttfcdKt* M M M | cafertacrjnrtals S U t ^ f n r C"rt'-:odi c m w i t i d wrtf brtunw"

H S*ndy ahala tP aiftrtwra; bv^f to Ban

Brtuminou* aandftor*; efMa-baddtrf

5 i - d j «ha*K b u f f t o f n y

Dokxrribc liffwrtDTiB: ffow, d « i » aligfttlsr brtwminiHia

Sha*a; P M P * w > * • * * n r * t t fv * . hutt

Lin94*1 nna: Wbwninout plant ar=d boM-f ia« i r4f lU

S * * * |T**n BJtMntfiou. aandftcrw; taa* irp pregnaUnn S H*1oft*; brawn t» tan Dolwrrta; d i p . t l * b r tu iwowt

S*ndH»ia : Ihui-lwdfl^d, wich V - f n i ^ t b w M r i w r r f r * " ^ * !

^ t u m ^ O J i « * n d * t * w i ewtnaeoda »v U B P K 2'. I ' 0* p a * V—n w * i t * rmdd4*

Sh*J«; p r f w i a * ' * r i * " > * «<* gray

Si r •: i • -.-- =. buff Sha**; (Ta j r *™** !

Brtumuwu* wndston* m t h o*1r«od*; madium W nc* im-ptaenatiwi n t t r i w d d M tha**. acattartd fis* *btlai

Sandy •*•*•;. B^jf-xnwn w*th purpt*- brawn rr*tt) in£, f rabt t

fl -Oc^nkcOd icn-a of brtunwnou* sand-Hone

Shale; i ed -p i i rp iHp si» j f - ( ia*r , jr»d>n« ;p aa*dy ahal*

- R e d * * * • • «?th cafcrt* rtwltu . . :>rain; ( .?*T*S r e* r ' ' •r"d **••*• , I IT|y. • * » ! •

-vBVhunnoui *and*lon*; l a w <mprtsnaT»Oft

~ ~ — — - - — — — Shala; -rtntg^ted F J I B * * and t r a m wrth- bufl rawrttiinfc compact

- ?

San^tta -**: &n *Mcep" » h w i yeihiwr From ^^Ofi-rt* * t a * * v+rr

S^wla; puapla rnottJad 5 * n d * t * w : bufl. f irw-fFain*d, banen

BVtunnanoui (andrWia, laan i m p r t p w l w .

ShaJa; purpt* t* g n j - p a * ^ locaflr auidp

fetummoua a a n d a W * : madiuan irp.pn«Ti*1Jon

S t r J j *hat« and -wnKroM-: whrta-jnijr, fnaWw

O a r and ihata: P«nj»* r roHWL F*d-Ar- i«alh*r in ir Silun-=i*M* •andatone; madwm .mpmgjnabon

Shale anrf t b j r t o n a ; rad and purjJe

U m y the*?: j i a j r - j w a n , *4JI-*iactvf»d ^ r ^ - f r t u n w w u a aarJiKWw; lean LmprapiaBOn, fine-jrain«J

Sandy aha**^ i n j f - l j w w

Sandsionar * « « . •fina-pawad. con: part, il&ftiy brturruujut, eontanna;

• -r-y ahale mambaf-a and « a l cijjf ro^ei

- U r r j s**i*: gray. •*»i-c*n'4fl lad

Brtumjnoua ^ndaiona. baccvninj l»irar. naartep. C « t a m s ottsicodi

Lin-i s-ait: j i a i f - w M a , con-pad.

Oilracod uona. camaniad with brtuman

f^:

UmrthaloL tf-aj. corr.oact Bihimmoua *and*txma: tan. two*** riraaka. wdl cam*nt«d

U m j ahafe; (n j> «rr ta ina«tTacoda

B*twmr»Oui rfndaiono; saarv co^tior^ ottaeoda Unvp ehaW; inVie , ttun-baddWL « r , t a w n-«njr ort-accd-i

f l i iun- p ^ t s a r j i t w * : rich impntgnation at croja-baddad al baat

S * a l j aanartan*: i « H : fn*. thin-baddad

Brt^nmou* **aaj aandirtca*; t»in-padd*d. compart

mmmm ;7 *» . : * i* , - r :"-'l.-,••-

s-rffc'*-:-

• • > 7

Bitv^iinoua sandjlone; laanat baa*. ImaHfjatMai batflnna* richaa as crota-tadWinj incraaaes. S r * - a * n e d . rraaanra, -̂rsHnmri. emeacaoua

-"

iV^rVv^;^

vN

-r-

S-'^l)1 aandhrtona; ttun-baddad - Shala; e i j - e - e a r ^ waii'-lnKlurad. con tuning.-*"

ft*3 t-« ^

SaAdt^ona; tan, fine . IJaaaaaaafK den»e

)&

^ ^ > ^

Red *--aie; motttad auisla al feaaa

Sandtt-on*; buHf. fine-s*atned. compacl

Shale; eti^-gpoe*-. M a * Ktunnrtoui aandaione;

Ccnwad: aanditono?

nanbad i-camantad, : : -

•itjn-iroua aardifo^a; m*dMjm in- piafni^ion

Shale, fcrny iha** and dofonmte-; thm-badyed. ce^Vd WaHa, containing 3' eon* o? waaHwead, toastf-bean-j; riigUti}1

arhjw r « - j i aandalone

Brt.*ninoua aand*1one^ *»ch mprac-a" >•.

• " • ' • ' J l > " i Saftdnona; ' n a b *

Bttuminouc sardirone; hkan wnpfCtpatKin, than-baddad

EXPLANATION

FOR FIGURES I AND 2

to i Surficial deposits

<

cr UJ

<

J O

g^

Green River formation <

Q:

V Wasatch formation

y

Bituminous sandstone Stippling indtcotes poorly

saturated beds

Geologic contact

Inferred geologic

contact

,5y Strike ond dip

Fault, D shows

downthrown side

Line of section

Quarry and dump

Prospect pit

i

- 2 6

Sample numbers

Triangulation station

of this survey

Oolitic limestone bed with ostrocodes

^ ^

Improved roads

Geology and topography b> Clifford r\f. Holmes and Ben M. Page. Surveyed i n m s FIGURE L GEOLOGIC MAP OF BITUMINOUS SANDSTONE DEPOSITS NEAR

QUARRIES OF THE ROCK ASPHALT COMPANY OF UTAH

Area mapped is shown by small rectangle on figure 2

Unimproved roads

500 5 0 0 IjOOO F =

|,50QFeet

Contour in terva l £0 fee t , datum mean «a level

FIGURE 3. COLUMAR SECTION MEASURED ALONG LINE A-A ON FIGURE I

EXPLANATION OF COLUMNAR SECTION

Sandstone

C ross- bed de d sandstone

L9400

^s* £S

• * • " ' •

Limestone

Limestone with oolites

«-. ' • . - . o -

, fr ' .%-.>'>v-y

Stream te rrace deposits

/ / „ /

/ /

.-' t „ , /

/ v

I i /

p ' i

/ / V

Shale

Sandy shale

Siitstone

Clay stone

Dolomite

_9000

FIGURE 4. CROSS SECTION ALONG LINE A-A' ON FIGURE I Horizontal scale same as scale of figure I. No vertical exaggeration

FIGURE 2. MAP SHOWING DISTRIBUTION OF BITUMINOUS SANDSTONE Bose mop compiJed from township plots of Ihe General Lend Office,

S..™™n»"te.,™«0u.& DEPOSITS NEAR SUNNYSIDE, CARBON COUNTY, UTAH Geological Survey topooraphfc map of surmysrde quadrangle. Wasatch and Green River formations not differentiated

VERTICAL SCALE OF COLUMNAR SECTION I Mile

5 0 100 150 Feet

GEOLOGF OF THE BITUKIHOUS SANDSTONE DEPOSITS NEAR 3USNYSIDE, CARBOK COUNTY, UTAH

Tbe b l t u a l a a i i a aendstcat d e p o s i t s a u r S u n n j s l d e , Carbon Oounty,, TTtab, n b l c b a r e t b e l a r g a s t known I n t a e r - i t e i S t a t e s , f*ere t t x a a l t L e d b y t h e 0 . 3 . G-sologi<J*l &arv*j f o r t h e purpose o f a p p r a i s i n g ttts d e p o s i t s a s a p o s s i b l e s o u r c e o f pe tro leum p r o d u c t s . Tbe f i e l d nork was done by C l i f f o r d V. S o l m s s , Ben M. P a g e , and Paul A r e r l t t d u r i n g t h e a i m e r and f a l l o f 1 9 4 6 . A n area o f about 1 sq-usre * l l e I n t o e r i c l n l t y o f t n e o u a r r i a s o f t h e Ec-ck A s p h a l t Co. o f Utah was Mapped b y p l a n a t a b l e o n a s c a l e o f 4 0 0 f e a t t o t b e I n c h . I n t o l a area t o e topograph? n a s sapped b y c o n t o u r s d r a m a t 2 0 - f o o t I n t e r v a l s . A aap o f the d e p o s i t s t h r o u g h o u t a n a d j o i n i n g a r e a o f a p p r o x i m a t e l y 1 4 square n l l e s was p r e p a r e d on a s e a l s o f 2PCXW f e e t to t b e I n c h . Tbe bit iralncras s a n d s t o n e d e p o s i t s I n t h i s l a r g e r a r e a were p l o t t e d I n t h e f i e l d o n e n l a r g e d a e r i a l a n a a l c s and t r a n s f e r r e d t o a c o n t r o l l e d p l a n J j a e t r i c b a s e s a p p r e p a r e d b y t h e S o i l C o n s e r v a t i o n S e r v i c e , TT. 3 * Department o f A g r i c u l t u r e . The townsh ip and s e c t i o n l i n e s were t a k e n f r o a t h e S u n n v s l d e t o p o g r a p h i c q u a d r a n g l e s h e e t . These naps a r e shown In f l g u r s s 1 and 2 r e s p e c t i v e l y .

C o n s e r v a t i v e l y e a t l a t a t e d j t h e d e p o s i t s nee.r S u n n y s l d e c o n t a i n 1 , 5 0 0 , 0 0 0 , 0 0 0 c u b i c r a r d i o f b i t u m i n o u s s a n d s t o n e , h a l f o f w h i c h l a b e l i e v e d t o c o n t a i n a t l e a s t 9 p a r c e n t bitumen, b y w e i g h t . Tha b l t n a d n o i t s s a n d s t o n e o c c u r s i n bads r a n g i n g from 1 0 f e e t t o 350 f e e t I n t h i c k n e s s w i t h i n a s o n e s h o u t 1 , 0 0 0 f e e t t h i c k I n t h e uppar p a r t o f t h e U a s a t c b f o r m a t i o n a n d i n t h e l o w e r p a r t o f t h e o v e r l y i n g Green B l v e r f o m a t l o n - Tbe b e d s l i e a t e l e v a t i o n s b e t w e e n 9 , 0 0 0 and 1 0 , 0 0 0 f e e t n e a r t h e t o p o f t h e Bock C l i f f s , a s o u t h w e s t - f a c i n g e scarpment c a r v e d i n g e n t l e n o r t h - t o n o r t h w e s t - d i p p i n g r o c k s o n t h e s o u t h e r n a a r g l n o f t a s U i n t a B a a l s . B e c a u s e o f t h e p r e s e n c e o f t h e r e s i s t a n t b i t u m i n o u s s a n d s t o n e b e d s , t h i s escarpment n e a r S u n n y s l d e i s s t e e p and rugged and o v s r l o o k s a w i d e b e l t o f mounta inous t e r r a i n c a r v e d I n tha l e a s r e s i s t a n t r o c k s i n t b e l o w e r p a r t o f t h e Wasatch forma­t i o n . BTorth and n o r t h e a s t o f t h e c r e s t o f t h a e scarpment t h e t e r r a i n la e s s e n t i a l l y a b r o a d , somewhat d i s s e c t e d p l a t e a u formed on a g e n t l e d i p s l o p e o f s h a l e o f t h e Green R i v e r f o r m a t i o n . The b i t u m i n o u s d e p o s i t s can be reached by a T - a l l e d r i v e on a s e c o n d a r y road from t b e c o a l - m i n i n g v i l l a g e o f Sunnvs lde , . a t e r m i n a l p o i n t on a s p u r o f the Denver and Rio Grande Western R a i l r o a d .

Tha b i t u m i n o u s d e p o s i t s n e a r Sunnys ide mere f i r s t opened a t the s m a l l quarry n e a r s t a t i o n D ( f i g . 1 ) I n 1392, and o p e r a t e d f o r a y e a r or l o n g e r , d u r i n g which t ime s h o u t 1 , 0 0 0 t o n s o f rock was removed. T h i s m a t e r i a l was u s e d f o r s t r e e t p a v i n g in. 3 a l t Lake C i t y , U t a h . The quarry was n e x t o p e r a t e d In 1 9 0 2 - 0 3 whan an a d d i t i o n a l 1 , 0 0 0 t o n e we.9 mined . A new quarry s i t e , now t h a l a r g e s t quarry shown on f i g u r e 1 , was opened by t h e Utah A s p h a l t Co. in 1 9 1 5 , and a b o u t 3 , 0 0 0 t o n s o f rock was removed b e f o r e I t s h u t down i n 1916 o r 1 9 1 7 . T h i s quarry was reopened by t h e Utah Rock A s p h a l t Corp. In 1927 and worked u n t i l 1 9 3 1 ; d u r i n g t h a t p e r i o d about 2 5 , 0 0 0 t o 3 0 , 0 0 0 t o n s o f t h e b i t u m i n o u s s a n d s t o n e w e r e m i n e d . I n 1931 t h e o w e r s h l p o f t h e quarry p a s s e d t o t h e p r e s e n t o p e r a t o r , t h e Bock A s p h a l t . G o . o f U t a h ; t h e quarry has bs-wt wo-z&ed more or l e s s c o n t i n u o u s l y s i n e s t h a t d a t e . The p r o d u c t i o n from 1931 t h r o u g h 1945 t o t a l e d a p p r o x i m a t e l y 3 0 0 , 0 0 0 t o n s , making a n a l l - t i m e t o t a l o f about 3 3 5 , 0 0 0 t o n s , f i e J S J M J o u t p u t now a v e r a g e s 2 0 , 0 0 0 t o 3 0 , 0 0 0 tons, a l l o f w h i c h i s c rushed and u s e d w i t h o u t f u r t h e r t r e a t m e n t f o r p a v i n g s t r e e t s , highways r a i r p l a n e l a n d i n g s t r i p s , t e n n i s c o u r t s , and t h e I l k a . A l t h o u g h t h e m a t e r i a l l a consumed m o s t l y i n Utah and C o l o r a d o , s m a l l sh ipments a r e made to K a n s a s , • e & r a s k a , " e r a d a , and Wyoming. The w r i t e r s g r a t e f u l l y acknowledge t h e a s s i s t a n c e and i n f o r m a t i o n r e c e i v e d from Mr. Banry B . J o n e s , former p r o d u c t i o n manager o f t h e Bock A s p h a l t Co. o f Utah s t B u n n y s l d e .

P r e v i o u s w o r k . — A l t h o u g h t h e b i t u m i n o u s rock q u a r r i e s n e a r S u n n y s i d e have b e e n v i s i t e d b y many g e o l o g i s t s and e n g i n e e r s , tbe d e p o s i t s have n e v e r b e f o r e b e e n s u r v e y e d , and o n l y c a s u a l d e 9 c r l p ~ t l o n s o f them a p p e a r I n t h e g e o l o g i c l i t e r a t u r e . The topography o f t b e r e g i o n i s shown cm a s c a l e o f about 1 i n c h to t h e m i l e on t h e S u n n y s i d e quadrangle o f t b e u . 3 - G e o l o g i c a l S u r v e y , and a l s o o n p h o t o g r a p h i c mosa ic quadrang le B o . 163 o f t h e S o i l C o n s e r v a t i o n S e r v i c e . The r e g i o n a l g e o l o g y i s d i s c u s s e d I n a £«nD|*t o n e c a l r e s o u r c e s o f t h e Cast l e g a t e , W e l l i n g t o n , and S u n n y s i d e quad-r a j i g l e s , l / and tbe b i t u m i n o u s a a n d s t o n e o c c u r r e n c e i s d e s c r i b e d I D two s h o r t paragraphs In a r e p o r t by Bard and B a l l , ^ / c i t e d h e r e p a r t i c u l a r l y f o r i t s c o m p r e h e n s i v e b i b l i o g r a p h y o n t h e s o l i d h y d r o ­carbons o f t h e U n i t s B a s i n .

STRATroEUpar

The rocks in c-he a r e a h e r e d e s c r i b e d form a c o n t i n u o u s d e p o s i t i o n s ! s e q u e n c e made u p c h i e f l y o f n o n a s r l n s s a n d s t o n e and s h a l e o f Eocene a g e . T h i s s e q u e n c e i s d i v i d e d , o n t b e b a s i s o f l l t h o l o g y and mode o f d e p o s i t i o n . I n t o two u n i t s , t h e Wasatch and Green R i v e r f o r m a t i o n s . The l o w e r p a r t o f the s e q u e n c e , which i s c h i e f l y f l u v l a t l l s , i s a s s i g n e d t o t h e Wasatch f o r m a t i o n , and t h e upper p a r t , c h i e f l y l a c u s t r i n e , i s a s s i g n e d t o t h e Green R l t e r f o r m a t i o n . The t r a n s i t i o n b e t w e e n t h e two f o r m a t l o n a , however , l a g r a d a t l o n a l throughout a n i n t e r v a l o f s e v e r a l hundred f e e t . The w r i t e r s p l a c e t h e boundary where d o m l n a n t l y f l u v l s t i l e s t r a t a b e l o w g i v e way t o domlnant l r l a c u s t r i n e s e d i m e n t s a b o v e , b u t e a c h o f tha two f o r m a t i o n s c o n t a i n s b e d s c h a r a c t e r i s t i c o f t h e o t h e r . The s t r e a m - d e p o s i t e d b e d s tend t o b e l e n t i c u l a r , and o f s m a l l l a t e r a l e x t e n t . Moreover, they e x h i b i t marked changes In f a d e s , and many l o c a l d i s c o n f o r a l l i e s . The l a c u s t r i n e b e d s , o n t h e o t h e r hand, a r e s t r i k i n g l y uniform and p e r s i s t e n t . The l l t h o l o g l c d e t a i l s o f t h e two f o r m a t i o n s are shown i n t h e columnar s e c t i o n { f i g - 3 ] »

Wasatch fo ] . t l o n

The Wasatch f o r m a t i o n , o f l o w e r Eocene a g e , c o n t a i n s t h e b u l k o f t h e b i t u m i n o u s s a n d s t o n e d e p o s i t s , and makes u p m o s t o f t h e s t e e p f a c e o f t h e Book C l i f f s . The f o r m a t i o n i s 3 , 7 5 0 f e e t t h i c k i n t h e Sunnya ide quadreregle . sy Only t h e upper t h i r d , I n which t h e b i t u m i ­nous s a n d s t o n e b e d s c o n t a i n e d I n t h e f o r m a t i o n a r e c o n c e n t r a t e d , was examined dur ing t h e c o u r s e o f t h e p r e s e n t i n T a a t i g s t l o n . I n t h e b i l l s n o r t h o f C o l t o n , U t a h County , U t a h , b e d s t h o u g h t t o b e e q u i v a ­l e n t t o t h e uppermost p a r t o f t h e Wasatch have been d e s i g n a t e d t h e C o l t o n f o r m a t t o n . 4 / The d i s c o n t i n u o u s and l e n t i c u l a r n a t u r e o f the b e d s I n t h e C o l t o n f o r m a t i o n , however , makes r e g i o n a l c o r r e l a t i o n s w i t h t h e Sunnys ide a r e a I m p o s s i b l e u n t i l f u r t h e r d e t a i l e d work I s c o m p l e t e d .

The columnar s e c t i o n , f i g u r e 3 , shows o n l y t b e upper t h i r d o f t h e Wasatch f o r m a t i o n a b o v e a c o n s p i c u o u s r e d s h a l e member, w h i c h i s a c o n v e n i e n t and e a s i l y r e c o g n i s a b l e datum. The l l t h o l o g y shown, however , i s t y p i c a l o f t h e e n t i r e f o r m a t i o n , w h i c h c o n s i s t * predomi­n a n t l y o f s a n d s t o n e i n t e r b e d d e d w i t h s h a l e and t o a l e s s e r e x t e n t w i t h b e d s o f t h i n L i m e s t o n e .

The s a n d s t o n e b e d s , w h e t h e r b i t u m i n o u s o r n o t , a r e fine— t o m e d i u m - g r a i n e d , t h i n - t o m a s s l T S - b e d d s d , and l e n t i c u l a r . Cosmunly t h e y e x h i b i t c r o s s b e d d i n g a n d a r e u n d e r l a i n b y a l o c a l 1 - t o 2 - f o o t l a t r a f o m a t i o n a l c o n g l o m e r a t e la. w h i c h a n g u l a r p e b b l e s and -cobbles o f w h i t e a h a l e and y e l l o w - w e a t h e r i n g l i m e s t o n e a r e p r o m i n e n t . These c o n g l o m e r a t e s , and t o a l e a s e r e x t e n t t b e a a n d s t o n e o v e r l y i n g them, l o c a l l y c o n t a i n f r a g m e n t s o f b o n e s and t e e t h , a s w e l l a s b l a c k , p o l i s h e d p l a t e s o f g a r p i k e ( L e p l s o a t e u s ) . The c o n s t i t u e n t m i n e r a l grains- a r e p r i n c i p a l l y eubrounded q u a r t s , o r t h o c l a a s , n d c r o c l l n e , and p l a g l c c i a a e , w i t h s u b o r d i n a t e amounts o f M u s c o v i t e and c h a l c e d o n y . Ferromagnes lan m i n e r a l s a r e r a r e - A s m a l l amount o f i n t e r s t i t i a l c a l c l t e I s p r e s e n t i n soma o f t h e a a n d s t o n e b e d s . I n weathered o u t ­c r o p s t h e b a r r e n s a n d s t o n e b e d s a r e l i g h t b u f f I n c o l o r .

I n t e r v e n i n g b e t w e e n t h e s a n d s t o n e beds i n t h e upper t h i r d o f t h e f o r m a t i o n a r e many v a r i e t i e s o f s h a l e and muds tone . These I n c l u d e p a l e - g r a y s h a l e ; h a r d , b r i t t l e b l u e - g r e e n c l a y s h a l e ; b ' - l t t l * , g r e e n i s h - g r a y s i l t y a h a l e j . and b r i t t l e mudstone Lacklng^smalyT c l e a v ­age . The mudstone b e d s range in c o l o r from maroon to b r i c k r e d s a d p u r p l e r e d , and a r e , t h e r e f o r e , v e r y c o n s p i c u o u s . The s h a l e beds c o n t a i n f ragments o f l e a v e s and p l a n t sterna, but t b e a e f o s s l l a are uncommon in the mudstone .

The upper p a r t o f the Wasatch f o r m a t i o n s l a o c o n t a i n s s e v e r a l t h i n c a l c a r e o u s b e d s i - f o o t t o 5 f e e t t h i c k . These I n c l u d e b e d s o f h a r d , d e n s e , w h i t e - - n e a t h e r l n g l i m e s t o n e , o a t r e c o d e b e d s r e s e m b l i n g o o l i t i c l i m e s t o n e , and y e l l o w - w e a t h e r i n g , " sandy b e d s c o n t a i n i n g o a t r a - c o d e s . A l l t h r e e v a r i e t i e s o f c a l c a r e o u s beds a r e l o c a l l y some­what b i t u m i n o u s ,

F o s s i l s o c c u r r i n g i n t h e upper p a r t o f t h e Wasatch f o r m a t i o n c o n s i s t p r i n c i p a l l y o f bone and p l a n t f r a g m e n t s , f i s h s c a l e s , and s m a l l g a s t r o p o d s . S e v e r a l d i f f e r e n t forms t h a t have been i d e n t i ­f i e d a r e : g a r p i k e o r L e p l s o a t e u s c u n e a t u s Cops , Knight l a a t t a ( L e l d y J , c r o c o d i l e o r K l o p l o s u a c f . a b o r e v t a t u s Cope, t u r t l e ( T J , the f r e s h - w a t e r g a s t r o p o d a 'Flsuaorbla^ s p e c t a b T l l s Heek, Physa a f f . P . p i e r o m a t i s W h i t e , G o n l o b a s l s t e n e r a B a l l , and Fbyaa a f f . P> b r l d j g e r e n a l s n e e k j u w e l l a s f n s o h - w a t e r o a t r a c o i e s , a l g a e , and l e a v e s o f p l a n t s r e l a t e d t o t h e E u c a l y p t u s . The I n v e r t e b r a t e s a r e w i t h o u t e x c e p t i o n forma t h a t a r e w ldeapraad i n t h e l o w e r S o c e n e , b u t whose l i m i t o f range upward i s n o t n a i l known. Most o f t h o s e found a r e pond and l a k e d w e l l e r s w h e r e a s a more f l u v l a t i l a environawnt I s s u g g e s t e d b y t h e g a r p i k e and c r o c o d i l e . A l t h o u g h t b e f r e s h - w a t e r o s t r o c o d e s have p o t e n t i a l v a l u e f o r c o r r e l a t i o n , t h e y a r e a t p r e s e n t l i t t l e known and c o n s e q u e n t l y have l i t t l e s t r a t l g r a p b l c v a l u e ,

Gr^sn River formation

The Green R i v e r f o r m a t i o n , o f middle Eocene a g e , l a i n t l o n a l c o n t a c t w i t h t h e u n d e r l y i n g Wasatch f o r m a t i o n and f < c r e s t and d i p s l o p e o f the Book C l i f f s . The b s a a l p a r t o f tin t l o n , e x p o s e d I n tbe a r e a mapped. I s composed l a r g e l y o f p a l e g r e e n l a b - g r a y msidatone and t h i n - b e d d e d s h a l e o f l a c u s t r i n e o r i g i n , i n t e r b e d d e d w i t h a a n d s t o n e o f f l j v l a t l l s o r i g i n . C o n t a i n e d I n t h e s h a l e a r e many t h i n c a l c a r e o u s l a y e r s , some o f which a r e marlBtone and some l i m e s t o n e . These b e d s a r e J - f o o t t o 5 f e e t t h i c k , and a r e m o a t l y w h i t e w e a t h e r i n g , d e n s e , and h a r d . Hany are dark and b i t u m i ­nous o n f r e a b s u r f a c e s . The l i m e s t o n e l a y e r s o c c a s i o n a l l y show s m a l l , r o u g h , c o n c e n t r i c head s p h e r e s o f a l g a l c o l o n i e s , a n d , T*ry r a r e l y , l a r g e b l a c u l t - a h a p e d a l g a l maaaes S o r 3 f e e t l o n g . In. the a r e * shown o n f i g u r e 1 the f o r m a t i o n c o n t a i n s two o r t h r e e s t r i k i n g l y c o n t i n u o u s 1 - f o o t b e d s o f v a r v e d e l l s h a l e , w h i c h a r e b l a c k o n f r e a h a u r f a c e s , b u t w h i c h w e a t h e r I n t o v e r y t h i n * h i t e s h e e t s . Fragmental f i s h remains a r e numerous i n t b e o i l s h a l e , and r a r e i n o t h e r p a r t e o f t h e f o r m a t i o n , f o s s i l l e a v e s and o t h e r p l a n t remains a r e p r e s e n t t h r o u g h o u t t h a f o r m a t i o n .

Tbe s a n d s t o n e b e d s c o n t a i n e d In t h e l o w e r p a r t o f the Green H i r e r f o r m a t i o n a r e s i m i l a r I n a p p e a r a n c e and o r i g i n t o t h o s e i n the u n d e r l y i n g Wasatch . I n t h e a r e a shown o n f i g u r e 1 t h e s e b e d s a r e b l t o m l n o u a , but f o r t h e m o s t p a r t a r e l e s s t h a n 1 2 f e e t t h i c k , and n o t o f economic v a l u e .

S u r f i c i a l d e p o s i t s

I n common w i t h o t h e r a r e a s I n n o r t h - c e n t r a l U t a h , t h e l o » e r r e a c h e s o f a l l s t r e a m s i n the S u n n y s i d e r e g i o n were e x t e n e l v a l y a l l u v l a t e d d u r i n g P l e i s t o c e n e t i m e , and a r e now b e i n g r e e x c a r a t e d , I n tha a r e a s h o w o n f i g u r e 1 , a l l o f which i s above B,000 f e e t i n a l t i t u d e , t h i s v a l l e y f i l l i n g was a c c o m p l i s h e d m a i n l y b y mud f l o w s and l a n d e l i d e s , and i n par t b y d e p o a l t l o n i n s t reams b e h i n d s u c h o b s t r u c t i o n s . The s u r f i c i a l a c c u m u l a t i o n l a composed e x c l u s i v e l y o f d e b r i s from t h e Wasatch and Green R i v e r f o r a a t t o n a . I t c o n t a l n a f r a g m e n t s o f a l l a l s s a and a b a p e e , w i t h rud imentary s t r a t i f i c a t i o n o r n o n e . S i n c e t h e c l i m a t i c o r p h y s i o g r a p h i c change t h a t p g ™ ^ a d t e a resumpt ion of normal s tream e r e a Ion took p l a c e , the s treama In. t b e a r e a shown o n f i g u r e 1 have c u t through a t l e a s t 150 f e e t o f t h i s m a t e r i a l , l e a v i n g l o c a l remnants a s t e r r a c e s a l o n g t b e v a l l e y s i d e s .

STRUCTURE

I n t h e a r e a shown o n t h e accompanying maps t b e s t r u c t u r e i s e s s e n t i a l l y h o m o c l l n a l ; the r o c i a d i p 3* to 10* HE i n t o the TJJnta B a s i n , toward tbe n o r t h w e s t end o f t h e mapped a r e a and b e y o n d , t h e s t r i k e o f t h e beda changes g r a d u a l l y westward forming a n a r c e a s e n -t l a l l y p a r a l l e l t o t b e C r e t a c e o u s rim rock o f t h e San R a f a e l S w e l l * a l a r g e e r o d e d dome whose c e n t e r l i e s a b o u t 5 0 m l l e a t o t b e s o u t h .

The r o c k s a r e broken b y s e v e r a l v e r t i c a l f a u l t s w i t h d i s p l a c e ­ments r a n g i n g from 1 t o about ISO f e e t , and l o c a l l y s y s t e m s o f v e r t i ­c a l J o i n t s may b e o b s e r v e d , a s i n t h e s a n d s t o n e p r o m o n t o r i e s i n t h e a m p h i t h e a t r e a t t h e head o f Water Canyon, l o r e v e r s a l s o f d i p are p r e s e n t *

BTTUnlBTOUS 3AJTST01TB DEPOSITS

The b i t u m i n o u s s s n d s t o n e d e p o s i t s , knows l o c a l l y a s *rock a s p h a l t , * c o n s i s t o f numerous b e d s , from s few i n c h e s t o a s much a s 550 f e e t t h i c k , which I n d i v i d u a l l y may e x t e n d s e v e r a l thousand f e e t a l o n g t h e s t r i k e . The d e p o s i t s e x t e n d about 9 m l l e a a l o n g t b e o a t -c r o p , and a r e c o n f i n e d t o a v e r t i c a l s t r a t l g r a p b l c i n t e r v a l o f 1 , 0 0 0 f e e t .

The accompanying maps show tha o u t c r o p s o f a l l b i t u m i n o u s beds o f p o s s i b l e economic v a l u e a l o n g t h e f r o n t o f t h e Book C l i f f s . Thin b i t u m i n o u s b e d s c o n t i n u e n o r t h w e s t w a r d , h o w e v e r , beyond t h e l i m i t s o f t h e a r e a shown o n t h e maps. S i m i l a r l y , b i t u m i n o u s beds a r e exposed i n v a l l e y s o n t h e d i p s l o p s n o r t h e a s t o f t h e Book C l i f f s , p a r t i c u l a r l y i n the headwaters o f Dry and Range G r e e k s . I n the t i m e a v a i l a b l e t o t h e w r i t e r s I t was n o t p o s s i b l e t o map t h e b e d s n o r t h e a s t o f t h e c r e s t o f t h e Book C l i f f s , b u t s e v e r a l r e c o n n a i s s a n c e v i s i t s I n t h e d e e p l y I n c i s e d H l d d l e and S o u t h Fhrka o f Dry Creek r e v e a l e d t h a t t b e b i t u m i n o u s s e c t i o n has t h e r e b e e n c u t b y t h e s tream* I n t h e S o u t h Fork o f Dry Creek t h e b i t u m i n o u s b e d s a r e somewhat t h i n n e r , b u t o t h e r w i s e comparable t o t h o s e o n t h e f a c e o f t h e C l i f f s .

Ths b i t u m i n o u s beds o n the f r o n t o f t h e Book C l i f f s a r e v e r y r e s i s t a n t and c r o p o u t c o n s p i c u o u s l y o n t h e s t e e p e r s l o p e s . T y p i ­c a l l y t h e y a r e b a t t l e s h i p g r a y , o r i n f r e q u e n t l y , l i g h t b u f f o n w e a t h e r e d s u r f a c e s . When f r e s h l y b r o k e n , h o w e v e r , t h e rock I s g e n e r ­a l l y b l a c k , and the b l e a c h e d e x t e r i o r I s s e e n t o b e l e a s than 1 /16 i n c h t h i c k . H o s t o f t h e b e d s t h a t a r e o n l y s l i g h t l y b i t u m i n o u s a r e l i g h t to medium brown tairoughout*

Some o f t h e b i t u m i n o u s s a n d s t o n e b e d s a r e f a i r l y w e l l s t r a t i f i e d and a few of them a r e t h i n - b e d d e d , w e a t h e r i n g i n t o p l a t e s 1 to 4 Ir.ches t h i c k . Cross bedding i s commonplace, b u t b y n o asana u n i v e r s a l . I n t h s r i c h e r b e d s where t h a p o r e a p a c e a p p e a r s t o b e e n t i r e l y f i l l e d , n o s t r a t i f i c a t i o n o f any k i n d l a v i s i b l e . A l l o f t h e b e d s a r e l e n t i c u l a r , and many o f them c l e a r l y o c c u p y b r o a d c h s n n e l a c u t I n t o u n d e r l y i n g s h a l e and t h i n l i m e s t o n e . H o s t o f the b i t u m i n o u s b e d s a r e u n d e r l a i n and o v e r l a i n b y s h a l e , and wedge o u t l a t e r a l l y i n s h a l e , the o c c u r r e n c e o f b i tumen c l e a r l y b e i n g bounded b y t h * i m p e r v i o u s l a y e r s . I n o t h e r b e d s , t h s b i t u m i n o u s sands t o n s g i v e s way t o b a r r e n s a n d s t o n e downward o r a l o n g t h e s t r i k e , a s though t h e r e h a d b e e n I n s u f f i c i e n t b i tumen t o i n v a d e a l l o f t h e h o s t r o c k . A t c o n t a c t s between t h e Impregnated m a t e r i a l and b a r r e n s a n d ­s t o n e , t h s c h a n g e I s v e r y g r a d u a l I n some l o c a l I t l e a end a b r u p t I n o t h e r s . I n b o t h t y p e s o f o c c u r r e n c e t h e c o n t a c t s b e t w e e n b i t u m i n o u s and barren p a r t s o f t b e beds a r e g e n e r a l l y h i g h l y I r r e g u l a r , u n l i k e t b e smooth , e v e n c o n t a c t t h a t wight- b e e j p e c t a d t c r e s u l t a t a n o i l -w a t e r i n t e r f a c e .

A s shown i n t h e t a b l e s b e l o w , t b e p o r o s i t y o f t h e b i t u m i n o u s a a n d s t o n e r a n g e s between 25 end 50 p e r c e n t by v o l u m e ; t h e pBrme-a b l l i t y , b a a e d on f o u r d e t e r m i n a t i o n s , ranges b e t w e e n 154 and 6-77 m i l l l d a r c l e s . L i t t l e o r n o w a t e r I s p r e s e n t i n t h e i n t e r s t i t i a l s p a c e .

O n t h e w h o l e t h e b i t u m i n o u s s a n d s t o n e i s c u l t s h a r d , t o u g h , and t e n a c i o u s , r e q u i r i n g d r i l l i n g end b l a s t i n g I n q u a r r y i n g . I n h o t w e a t h e r , h o w e v e r , t h e o u t e r s u r f a c e s o f t h e b i t u m i n o u s b e d s s o f t e n s l i g h t l y , and a s p h a l t a o s e a from s u n l i t a u r f a c e s I n p e n c i l - s i z e d s * e p a p t h e r a t e o f f l o w b e i n g a l m o s t I m p e r c e p t i b l e , t o l a r g e s e e p -s g e a a r e known i n t h e d i s t r i c t .

Grade and n a t u r e of b i tumen.—The b i t u m i n o u s c&ntflnt Of t h e Bens LU t h e d i s t r i c t ranges from a few p e r c e n t to a l i t t l e more than 13 p e r c e n t by w e i g h t . According to f tr . Henry HI J o n e s , former p r o d u c t i o n manager o f t h e Bock A s p h a l t Co. o f U t a h , t h e s a n d s t o n e now b e i n g q u a r r i e d c o n t a i n s an average bi tumen c o n t e n t o f 10^ p a r c e n t , and a l l s h i p m e n t s e x c e e d 9 p e r c a n t . The t a b l e s below g i v e tbe r e s u l t s o f a n a l y s e s b y the o i l and Gas L a b o r a t o r y o f tbe G e o l o g i c a l Survey a t C a s p e r , Wyo-, o f samples c o l l e c t e d from l o c a l i t i e s abown on t h e ac[Mjnspanying s a p s , f tost o f t h e s e samples were t a k e n from Meathered o u t c r o p s and s l i g h t l y w e a t h e r e d s u r f a c e s I n abandoned q u a r r i e s and p r o s p e c t p i t s , a n d , t h e r e f o r e , are n o t r e p r e s e n t a t i v e o f f r e s h m a t e r i a l .

Sample sTo. 1 was t a k e n from a c o n t i n u o u s b a r r e n t o n e w i t h i n *a impregnated b i t u m i n o u s s a n d s t o n e bad and Sample S c . 6 from a b a r r e n e a n d s t o n e bed t h a t grades l a t e r a l l y i n t o a w e l l - i m p r e g n a t e d o u t c r o p * Theae samples were s e l e c t e d f o r t h e p u r p o s e o f p o r o s i t y and perme­a b i l i t y a n a l y s e s and a r e n o t i n d i c a t i v e o f t h e o v e r - a l l b i tumen c o n ­t e n t . On t h e b a s i s o f v i s u a l comparison between w e a t h e r e d and unweathered b i t u m i n o u s rock In the o p e r a t i n g c u a r r y , and w e a t h e r e d rock e l s e w h e r e I n t h e d i s t r i c t , I t i s L i k e l y t h a t a t l e a s t h a l f o f the m a t e r i a l shown as b i tuminous s a n d s t o n e on t h e accompanying p a r t i c u l a r l y I n t h e t h i c k e r bnds I n t h e c e n t r a l p a r t o f t h e recon^ n a l s s a n c e map ( f i g . 2 ) , I s comparable t o t h a t i n t h e o p e r a t i n g quarry .

I h e accompanying t a b l e s a l s o show the r e s u l t s o f a n a l y s e s o f t h e e x t r a c t e d b i t u m e n , and i n c l u d e t h e data o n t h e p o r o s i t y and p e r m e a b i l i t y o f a few s e l e c t e d s a m p l e s .

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Tbe r e s e r v e s o f b i tuminous s a n d s t o n e I n t h e a r e a mapped ( f i g . 2 ) t o t a l 1 , 6 0 0 , 0 0 0 , 0 0 0 c u b i c y a r d s , o f which 9 0 0 , 0 0 0 , 0 0 0 s a b l e yards i s e i t h e r measured o r I n d i c a t e d b y g e o l o g i c e v i d e n c e , and 7 0 0 , 0 0 0 , 0 0 0 c u b i c y a r d s l a i n f e r r e d . These r e s u l t s were o b t a i n e d b y combining s e p a r a t e c a l c u l a t i o n s f o r e a c h o f 3 2 s m a l l s u b - a r e a s i n which t h e b i t u m i n o u s s a n d s t o n e beda a p p e a r e d t o m a i n t a i n u n i f o r m t h i c k n e s s . The t o t a l t h i c k n e s s o f b i t u m i n o u s s a n d s t o n e i n e a c h s u b -area was o b t a i n e d b y a d d i n g t h e t h i c k n e s s e s o f t h e I n d i v i d u a l b e d s , and assuming t h a t a s i n g l e bed ex tended throughout t h e s u b - a r e a . From the o u t c r o p o f t h e beds t o & n a r b i t r a r y l i n e 1 , 0 0 0 f e e t down d i p from the c r e s t o f t h e Book C l i f f s , t b e t h i c k n e s s o f tbe b i t u m i ­nous rock was assumed to be un i form, and t h e c a l c u l a t e d r e s s r v e s s r e c l a s s e d a s m e a s u r e d , o r I n d i c a t e d . Down d i p b e l o w t h i s a r b i t r a r y l i n e , where t h e b i t u m i n o u s beds a r e under c o v e r , t h e b i t u m i n o u s rock was assumed t o t h a n u n i f o r m l y t o a h y p o t h e t i c a l c e r o l i n e , drawn t o e n c l o s e a b e l t 4 , 0 0 0 f e e t wide a t t h e c e n t e r o f tbe d e p o s i t s where the b l tumlnoua b e d s h a v e t h e g r e a t e s t t h i c k n e s s , and t a p e r i n g t o 1 , 0 0 0 f e e t w i d e s t t h e ends o f the d e p o s i t where t h e b i t u m i n o u s b e d s a r e t h i n n e r . The c a l c u l a t e d r e s e r v e s i n t h i s b e l t a r e c l a s s e d a s i n f e r r e d . S l i g h t l y bttuminoua b e d s , and a l l beds l e s s than 1 0 f e a t t h i c k were e x c l u d e d i n p r e p a r i n g the e x t l m a t e s .

I n t h e area o f the d e t a i l e d map, f i g u r e 1 , t h e r e s e r v e s were r e c a l c u l a t e d bed b y b e d , and the r e s u l t s o b t a i n e d were i n c l o s e a c c o r d w i t h t h o s e o b t a i n e d i n t h e comparable s u b - a r e a o n t h e s m a l l -s c a l e map. I n t h e a r e a o f the d e t a i l e d map, t h e measured and I n d i ­c a t e d r e s e r v e s a r e 2 2 6 , 0 0 0 , 0 0 0 c u b i c y a r d s , and a d d i t i o n a l I n f e r r e d r e s e r v e s a r e 4 6 , 5 0 0 , 0 0 0 c u b i c y a r d s . These amounts a r e I n c l u d e d i n t h e t o t a l s a b o v e .

From t b e d a t a a v a i l a b l e o n t h e g r a d e o f m a t e r i a l , I t i s r e a s o n ­a b l e L o assume t h a t one h a l f o f t b e t o t a l r e s e r v e s c o n t a i n s a t l e a s t 9 p e r c e n t b i t u m e n b y w e i g h t . K a t e r l a l o f t h i s g r a d e , t h e r e f o r e , t o t a l s 4 5 0 , 0 0 0 , 0 0 0 c u b i c yards o f measured and i n d i c a t e d b i t u m i n o u s s a n d a t o n e , and 3 5 0 , 0 0 0 , 0 0 0 c u b i c yards o f i n f e r r e d b i t u m i n o u s s a n d -a t o n e . The bi Lumen. In the Sunnys ide d e p o s i t s has a s p e c i f i c g r a v i t y o f 1 . 0 . Assuming t h a t t h e b i t u m i n o u s s a n d s t o n e has a s p e c i f i c g r a v i t y o f 2 , 1 and a c l tumen c o n t e n t o f 9 p e r c e n t by w e i g h t , a c u b i c y a r d o f b l tumlnoua s a n d s t o n e w e i g h t s 1 . 7 7 t o n s , and c o n t a i n s 3LB-.8-pounds of b i t u m e n . As a g a l l o n of b i tumen -neighs 6 . 3 4 5 p o u n d s , a c u b i c y a r d o f b i t u m i n o u s samdatone c o n t a i n s 3 S . 2 g a l l o n s o f b i t u m e n . O n t h i s b a s i s t h e measured and i n d i c a t e d b i t u m i n o u s s a n d a t o n e c o n ­t a i n s a t l e a s t 4 0 9 , 5 0 0 , 0 0 0 b a r r e l s o f b i t u m e n , and t b e I n f e r r e d m a t e r i a l c o n t a i n s 3 1 8 , 5 0 0 , 0 0 0 b a r r e l s . This makes a t o t a l o f 7 2 8 , 0 0 0 , 0 0 0 b a r r e l s , e x c l u s i v e c f m a t e r i a l assur.ee. t o c o n t a i n l e s s than 9 p e r c e n t b i t u m e n .

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The p r e s e n t o p e r a t o r s are removing m a t e r i a l from two a d j o i n i n g q u a r r i e s ( s e e f i g . 1 ] I n a t h i c k b i t u m i n o u s s a n d a t o n e b e d n e a r t h e base o f t h e b i t u m i n o u s a o n e . These ojitarrles l i e a t a n a l t i t u d e o f about 9 , 0 0 0 f e e t o n the s t e e p f r o n t o f t h e S o o t C l i f f s . Tbe q u a r r i e d rock I s lowered t o a n a l t i t u d e o f 7 , 2 5 0 f e e t b y a 3 - m i l e a e r i a l tram^ which f u n c t i o n s b y g r a v i t y . From t h e f o o t o f t h e t r a m , tbe b i t u m i ­nous s a n d s t o n e i s t a k e n b y truck t o the c r u s h i n g p l a n t a t S u n n y s i d e , where t h e f i n i s h e d p r o d u c t I s s u b s e q u e n t l y l o a d e d I n t o r a i l r o a d c a r s f o r s h i p m e n t .

A s t h e b l t u m l n o a s bed b e i n g q u a r r i e d i s c o v e r e d b y a t h i c k o v e r ­b u r d e n , l i k e most o f t h o s e i n t h e d i s t r i c t , and a a t h e quarry w a l l s o n t h e mounta in s i d e s r e s t e e p and h i g h . I t i s l i k e l y t h a t t h e p r e s e n t o p e r a t i o n s w i l l b e e x t e n d e d L a t e r a l l y a l o n g t h e o u t c r o p where t h e overburden I s l e s s . I f new o p e r a t i o n s a r e s t a r t e d , tbey w i l l a l s o be , - f o r the moat p a r t , I n t h e cone o f o u t c r o p . A l t h o u g h 3 3 5 , 0 0 0 t o n s have b e e n removed from t h e two l a r g e q u a r r l e a shown on f i g u r e 1 , the a r e a shown o n t h a t f i g u r e o f f e r s many comparable s i t e s f o r s u c h o p e r a t i o n s .

S e v e r a l s m a l l a r e a s I n tha d i s t r i c t o f f e r p o s s i b i l i t i e s f o r s t r i p m i n i n g t h a t m i g h t b e I n v e s t i g a t e d b y t h o s e I n t e r e s t e d I n a mora economica l method of e x t r a c t i n g the m a t e r i a l . Among t h e s e are t h e l o n g r i d g e t h a t forms t h e w e s t e r n boundary o f t h e a r e a ehpwn o n f i g u r e 1 ; t h e s a d d l e n o r t h w e s t o f Bruin P o i n t be tween B r u i n Creek and S o u t h Fork o f Dry Creek ( f i g . 2 ) ; and the a r e a o f broad o u t c r o p s o n t b e d i v i d e b e t w e e n t h e heads o f l e f t Fork and S l l d s Canyon o f R i g h t Pork { f i g . S > . A s i t I s p o s s i b l e t h a t t h e grade o f m a t e r i a l I n t h e l a s t - n a m e d l o c a l i t y i s l o w e r than i t i s I n and n e a r t h e p r e s e n t q u a r r i e s , a c a r e f u l sampl ing program s h o u l d p r e c e d e o p e r a ­t i o n s i n t h i s a r e a .

a l t h o u g h t h e b i t u m i n o u s s a n d s t o n e I n t h s S u n n y s i d e a r e a I s now u s e d o n l y f o r s u r f a c i n g m a t e r i a l , i t o f f e r s p o s s i b i l i t i e s a s a s o u r c e o f e x t r a c t e d b i t u m e n , which might b e c o n v e r t e d t o f u e l o i l and o t h e r p e t r o l e u m p r o d u c t s . The d e p o s i t s n e a r S u n n y s i d e have s e v e r a l n a t u r a l a d v a n t a g e s a s a s o u r c e o f e x t r a c t e d b i t u m e n . F i r s t , t h e r e s e r v e s a r e a d e q u a t e f o r l a r g e - s c a l e o p e r a t i o n s * S e c o n d , t h e d e p o s i t s o c c u r I n a n a r e a o f h i g h r e l i e f where d i a p o s a l o f t h a r e s i d u a l sand! would p r e s e n t n o s e r i o u s prob lem. T h i r d , t h e e x t r a c t ­e d b i tumen o r s e c o n d a r y p r o d u c t s cou ld b e moved b y g r a v i t y t o t h e r a i l r o a d t e r m i n a l a t S u n n y s i d e .

A l though no s y s t e m a t i c a t t e m p t s have bean made to e x t r a c t t h e b i tumen from t h e b i t u m i n o u s a a n d s t o n e beda n e a r Sunnyalds- , e x p e r i ­m e n t a l work haa been c a r r i e d out by the U. 3 . Bureau of n i n e s and s e v e r a l I n d e p e n d e n t companies o n s i m i l a r b l tumlnoua sands t o n s d e ­p o s i t s I n C a l i f o r n i a 5 / and a t Athabaska , A l b e r t a , Cansda. ,6 / and t h e r e I s l i t t l e doubt t h a t w o r k a b l e and e c o n o m i c a l l y f e a s i b l e p r o ­c e s s e s w i l l b e d e v e l o p e d .

1/ Clark, P. B. , Ecooaaic geology of tbe Castlesste , Wellington, and SunojBlda quadraafUs, Uarban. County, Utah: U. S. GeoU Surwy Bul l , 793, pp. 1-2*, l?2fl.

2/ Bart, d a r k P. , and Bal l , Jaaes Cfden, ^rocarbons of the Uinta Basin of LFtah and Colorado: Colorado School of Kinw quart, , v o l . 39, DO. 1, pp. 12 and 3 L 1 * 4 ,

i / Clark, P . R.j op . t i t . , p . 21 , A/ Spiefcer, fcdmund M., la te Heaozolc and Early Cawzole history of central

Mm S« Gael. Survey Prof. Paper 205 B, p. 139, ISfci. shore, C. L. , Personal comauoieatlon. H i s , S. C* Bituminous sands of narUntrn Alberta: Canada Dept. HLnes,

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6 . 5 1 9 . 5 0 8*79

1 2 . 0 0 1 3 . 5 3 10 ."95

7 . 3 6 3 . 3 9 5 . 6 6 4 . 3 0 9 . 6 5 6 . 6 5

ght

.

Water c o n t e n t p e r c e n t by

m _ | . _

0 . 1 0 0 . 1 0 0 . 1 0 0 . 0 5 — _ 0 . 0 6 0*04 0 . 0 3 0 . 2 0 0 . 4 5 0 . 1 1 0.7O 0 . 0 7 0 . 1 S 0 . 3 6 0 . 1 5 0 . 0 4 0.O6 0 . 0 1 0 . 0 9 0 . 1 0 0 . 1 7 0.2O 0 . 0 1

w e i g h t P e r c e n t e f f e c ­

t i v e pore

29*7 S 9 . 5

2 5 . 0 2 7 . 1 2 9 . 3

.

-»— — -3 0 . 1 -.-—

2 8 . 7 ---..

s p a c e * P e r m e a b i l i t y * f m l l l t d a r c l e s )

308 6 7 7

— _

_~_ 3 2 0

. . .

—-

154 —. — -

* After removal of tUumen from Samples s o * . 1, 2, &, 7, A, 30, and 2 5 .

PROPERTIES OF EXTRACTED ASPHALT PBOfl THE B rTuTJTsTOUS SaJTOSTOJIE DEPOSITS SEAJt SUKBTSEDB, CAKBOB" COusTTT. UTAH

Sample To.

S p . g r . a t

6 0 * P .

S p . g r . a t

T7n F .

S o f t p o i n t

P e n e ­t r a t i o n

Soft point Index

51 r j=en s o l u b l e

use f p e r c e n t )

31 T_j=5r: s o l u b l e

CCU ( p a r e east)

Ash [ p e r c e n t ]

D u c t i ­l i t y

3 9 . 2 * P .

Duct i ­l i t y

77* F

6 7

1 6 , 1 7 , 1 6 20 23 2 7

1 . 0 1 0 1 . 0 0 6 . . .— 1 . 0 1 7 1 .01O 1 . 0 1 5

1 . 0 0 4 0 . 9 9 9 8 ——_ 1 . 0 1 1 1 . 0 0 4 1 . 0 0 9

LIS loe 246 115 106 1 1 3

l i e 141 .,—

96 1 6 0 1 0 1

-0 .2 -0.6 -0 .5 -0 .7 -0 .7

9 9 . 5 7 9 9 . 6 6 9 9 . 7 0 9 9 . 7 3 9 9 . 4 0

9 9 . 7 7 9 9 . Bl 9 9 . 3 2 9 9 . 3 7 9 9 . 7 0 9 9 . 7 0

3S

26 2& 32

196* 151

196+ 176 15B

Drafted by Freda H. Spurrier. GEOLOGY OF THE BITUMINOUS SANDSTONE DEPOSITS NEAR SUNNYSIDE, CARBON COUNTY, UTAH

OIL AND GAS INVESTIGATIONS PRELIMINARY MAP 86

by Clifford N. Holmes, Ben M. Page, and Paul Averitt

1948 UTAH GEOLOG/CAL SURVEY