rpt geoph sur dora explorations ltd prop
TRANSCRIPT
52009860081 52009SE0e2eC1 TARP LAKE 010'
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REPORTON
GEOPHYSICAL SURVEYS ON PART OF PROPERTY
DORA EXPLORATIONS LTD. PICKLE LAKE AREA, ONTARIO
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by
PROSPECTING GEOPHYSICS LTD.
April 12, 1982 Willowdale, Ontario
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REPORT ^ON
GEOPHYSICAL SURVEYS OH PART OF PROPERTY
DORA EXPLORATIONS LTD. PICKLE LAKE AREA, ONTARIO
INTRODUCTION
Considerable exploration has been carried out in the past on
four claims now held by Dora Explorations Ltd., in the Pickle
Lake area of Ontario. This work has been concentrated on a
gold-bearing quartz vein within a shear zone.
Prior to further investigation by diamond drilling, geophysical
surveys, including.electromagnetic and magnetic methods have been
completed over the four claims to provide maximum information as
a guide to the drilling.
PROPERTY
The complete property held by Dora Explorations Ltd. consists
of 38 contiguous mining claims in the Tarp Lake area of the
Patricia Mining Division of Ontario. The claims are registered
with the Ontario Ministry of Natural Resources under the following
claim numbers: Pa577711 to 577714 inclusivePa510514 to 510529 inclusive Pa 518004 Pa 531021 Pa 531024 to 531039 inclusive
The present surveys have been confined to claims
Pa577711 to 577714 inclusive.
GEOLOGY
The property is situated within the Pickle Lake
Greenstone belt which has a northeasterly strike and consists of
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GEOLOGY (contM)
greenstones and interbedded sediments. This belt of rocks has
been the host of gold deposits at Central Patricia Mines and
Pickle Crow Gold Mines.
The property of Dora Explorations Ltd., is located about
four miles north of the Pickle Crow deposit. Most of the
property is covered by muskeg but there are some outcrops on
the four claims surveyed. The outcrops consist of greenstone with
some shearing and carbonate alteration. Interesting gold values
have been encountered in diamond drilling carried out to investi
gate a quartz vein within the shear zone.
SURVEY METHODS AND INSTRUMENT DATA
The geophysical surveys were conducted over previously cut
lines in a northwest direction at 400 foot intervals.
'lie electromagnetic survey was carried out using a Geonics
EM-17 horizontal loop unit with a 300 foot coil separation. In
the horizontal loop type of survey, both the in-phase and out-of-
phase components of the secondary field are measured, whose special
characteristics make possible a fairly accurate evaluation of the
conductivity. A conductor caused by sulphide mineralization will
produce a curve going from positive readings through zero to
negative and back again to positive. Both the in-phase and out-
of-phase readings show the same general curve. The ratio between
the in-phase and out-of-phase readings over a conductor is an
i PftOtPCCTlNO Of OPMYSICS LTD.
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SURVLY METHODS AND INSTRUMENT DATA (cont'd)
indication of the conductivity of the body.
The magnetic readings were taken over the same network of
lines using a MF-2 Fluxgate magnetometer. This instrument
measures the vertical component of the earth's magnetic field in
gammas. The readings are plotted on a separate map after correction
for diurnal variation.
RESULTS OF THE GEOPHYSICAL SURVEYS
An examination of Map 2 showing the results of the
electromagnetic survey, shows a number of mostly discontinuous,
weak conductive zones. The responses are quite weak and it is
questionable if they are indicative of conductors in the underlying
rocks.
The most significant conductor is the one extending
In an east-west direction from line O to line 12W Just north of
the base line. Although weak, this could possibly represent the
extension of what is known as the carbonate zone. This zone
consists of a highly carbonatized volcanic rock mineralized with
pyrite. Drilling just east of the conductor gave low gold values
over fair widths. The conductor appears to lie along the flank of
a magnetic anomaly that suggests a more basic rock, possibly a
diorite or gabbro. This would be a favourable environment for
gold mineralization.
The magnetic map (Map No. 2) shows a number of
irregular magnetic anomalies ranging from 1,000 to 2,000 gammas
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RESULTS OF THE GEOPHYSICAL SURVEYS (cont'd)••i^M^M^M^WA :-V - , , i
compared to background readings of 400 to 500 gammas. TheseV ,* ' p . ' . ' "'
anomalies probably indicate variations in the underlying rock. i". - ,
formations. The known gold-bearing zones would appear to be
situated close to the contact of the magentic anomalies.
CONCLUSIONS AND RECOMMENDATIONS
The magnetic survey appears to have outlined more basic
rock formations possibly basic intrusives. The electromagnetic
survey indicated some weak conductive responses but only one of
these appears to be of significance. This is a weak east-west
zone that may Indicate the extension of the carbonate zone. The
main gold-bearing quartz vein did not show up in the survey but
this is not surprising as the sulphides present are very minor
and would not likely respond to an electromagnetic survey.
The results of the present surveys should be closely
correlated with all drill data available to determine if further
drilling is warranted.
Respectfully submitted,
PROSPECTING GEOPHYSICS LTD.
April 12, 1982 Willowdale, Ontario
'^m^^ofoPHYS
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I, H. J, Bergmann, of the City of Willowdale, in the Province of Ontario, hereby certify:
1. That I am a Consulting Mining Engineer *nd reside at 70 Chiswell Crescent, Willowdale, Ontario.
2. That I am a registered Professional Engineer of the Provinces of Ontario and Quebec.
3. That I am a graduate of the University of Alberta and hold a Bachelor of Science Degree in Mining Engineering.
4. That I have been practising my profession as a Mining Engineer since 1938 and during the past twenty-six years as a Consulting Engineer.
5. That I have no interest, either direct or indirect, in the property described in this report or securities of Dora Explorations Ltd., nor do I expect to receive, either directly or indirectly, any interest in the property or securities of the company.
6. That the accompanying report is based on a study of allavailable data on the property and vicinity together with the writer's experience in the area, and supervision of the exploration programme.
7. I hereby consent to the inclusion of this report in any documents required by the regulatory authorities.
Dated at Willowdale this 12th day of April, 1982
H.'J. Bergmann, P. Eng.
S2009SE00B1 52009SE0028C1 TARP LAKE 900Ministry of Natural Resources File.
OntarioGEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL
TECHNICAL DATA STATEMENT
TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT li REPEATED IN REPORT
TECHNICAL REPORT MUST CONTAIN INTERPRETATION. CONCLUSIONS ETC.
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Type of Survey(i) Electromagnet lg (t MagneticTownihip or ATM Tarp Lake Area.^^--—-——.—.Claim HoMgr(i) Rodney Knappetf-——-——-——
Survey Company Prospecting R. , tn H. J. BergmannAuthor of ** * **
Address of Author.Covering Dates of Survey.
Total Miles of Line Cut..
WQ . 1-nt
9 6E1(knecuttinf lo oifkx)
6 T R
SPECIAL PROVISIONSCREDITS REQUESTED
ENTER 40 days (includes line cutting) for first survey.
ENTER 20 days for each additional survey using same grid.
Geophysical ~ Electromagnetic..
— Radiometric...—-O.^r
r.r . iral
r,,nrH,m!r,1
DAYS
4020
AIRBORNE CREDITS (Special provbio* credit* do not apply toalibon* turvcyi)
Magnetometer. .Electromagnetic. , RaHinmrtrir(enter diyi per daii
DATE: April 12,
Res. Gcol.. .Qualifications.Previous Surveys
File No. Type Date Claim Holder
MINING CLAIMS TRAVERSED List numerically
•^•JC*o*AA**AX*L******i *#*************
Pa577713
Pa577714
f * * - v - * "* * ** * ** **M **4 *** t)** *************
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TOTAL CLAIMS.
GEOPHYSICAL TECHNICAL DATA
GROUND SURVEYS - If more than one survey, specify data for each type of survey
Number of Stations. Station interval ——Profile scale ^-—^Contour interval.
inn 1l" " 407. E.M. survey
Electromagnetic 367.Number of Readings Mugnet-ompf-Ar
.Line spacing. i200 fcanmas - Magnetic Survey
c
Initrument, MF-2 FluxgateAccuracy — Scale constant. Diurnal correction method.
5 RfltnuuasEase stations
Bate Station check-in interval (hours). Base Station location and value .——.
2 hoursSee map
uSz8lai
u
InstrumentCoil configuration Coil separation —— Accuracy ————— Method:Frequency..
Parameters measured.
EM-17Horizontal300'
I irrCD Fixed transmitter 1700 Hz
D Shoot back 03 In line O Parallel line
(ipcdfy V.LF.tution)In-phase and out-of-phase components
b
Instrument —, Scale constantCorrections made.
Base station value and location .
Elevation accuracy.
zoH
OCw
UJU Da
InstrumentMethod D Time DomainParameters — On time .
- Off time
l l Frequency Domain _ Frequency _____ _ Range —^—————
— Delay lime.Integration time.
Power.Electrode array — Electrode spacing . Type of electrode ,
Repoit'of Work (Geophysical, Geological, Geochemical and Expenditures)
.,. . . The Mining Act
Instructions: - Pieaie type or p ."l. If nwmbet of m.mng c 1* "* '
exceeds spec* on this lo'm. *r* : - Only days credits celcutaled
"Expenditures" section may be in the "Expend. Days d."
- Do not use shaded areas belo*.
.*. a int. m the entered
ip or Ar*e|Tow
jftotp
LfrOete of Mrom * io)
7o C.L tut/I i*) J localeCredits Requested per Each Claim in Columns at rightSpec)*! Pro vi* ion*
For first turvey:
Enter 40 deys. (Trm indudet line cutting)
For e*ch edditional turvey: using tne terne grid:
Enter 20 days (for each)
M*n Day*
Complete reverse Side end enter tolet(s) here
Airborne C'ediu
Note: Specie! pfovuiorv. credits do not apply to Airboine Surveys.
GiopTiytic*!
- Mtpnetometer
G* ol og ice!
Gtochemicel
Geoprtyticel
- Elecuomepneiic
- Magnetometer
- R*diom*trtt
- Other
Geological
Geochemicel
Electromeenttic
Rtdiomertk
Expenditures (excludes power stripping)
Oayt per Culm
Days per Oaim
Days perClaim
Mining Claims Traversed (List in numerical sequence)
Type of Work PeMormed
Perlormed on Oalm(t)
Calculation ol Expenditure Oayt Crrdiu
Total ExpendituresTotal '
Days Credits
InttructionsTotal Days Credits may be apportioned at the claim holder's choice. Enter number of dayt credits par claim selected In column* at right.
Mining ClaimrVelix -Number
Sif? /
Expend. DeysCr.
10
Mining ClaimPrefix Number
Expend.Days O.
pcnyMlNlj n
let.
31QH
Total number of mining claim* covered by t h l* report of work.
Certification Verifying Rerfbr**of Workl hereby certify that l have a personal and intimate knowledge of the famflBrWCrth in the Report of Work jnnexMherelo, having performed the work or witnessed tame during and/or after its completion and the annexed report it true.
Name and Postal Address ol-CAilpn Certifying
//-A/ , - 70l^l/GvJcb/e, CWT flfaj/t&J Dffly?^te it?*
1362(61/8) ———^
Mining Lands Comments
To: Geophysics
Q Wilh to M* egeln w*th correction*Det
To: Geology - ExpendituresComment!
Approved ] With to M* egeln with correction!Signature
To: GeochemistryComment!
Q Approved Q With to M* 0*ln with correction!Pet* Signature
l [TO: Mining Lands Section, Room 6462, Whitney Block. {Tel: 5-1380)
1663(61/10)
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H. J. BERGMANN, R ENC.MINING ENGINEER
2388
70 CHISVEU CRESCENTWILLOWDALE. ONTARIO
M2N 6EI
April 26, 1982
Mr. E. F. AndersonDirectorLand Management BranchMinistry of Natural ResourcesRoom 6450 - Whitney BlockQueen's ParkToronto, OntarioM7A 1W3
Dear Mr. Anderson:
Re: Claims Pa577711 - 577714
DECEIVEDUna Miiugemant Branch
towan nan t ir L.
MAY-4tfa2 f
J- '(. MORTOTi
J. C. SMITH
•N.I . J
J. M. iiMALL ""
_ , ___
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Enclosed you will find two copies of the report and map covering electromagnetic and magnetometer surveys carried out on the above-mentioned claims in the Tarp Lake area. All work has been recorded with the Mining Recorder in Sioux Lookout.
Yours very truly,
H. J. Bergmann, P. Eng.
HJBrbss Ends.
MINING LAN.
1982 05 20 2.4744
Mining Raoordar's Offioa Ministry of Natural Rasouroas P.O. Box 669 Sioux Lookout, Ontario POV 2TO
Dear sin
W* hava raoaivad reports and naps for a Geophysical (Blactroaagnatio t Magnatoaatar) Survay subaittad undar Spacial Provisions (oradit for Parforaanea and Covaraga) on Mining Claims Pa 577711 at al in tha PioJtla Laka Araa.
This aatarial will ba axaminad and assassad and a stata- •ant of asaassaant vork oradits will ba issuad.
Yours vary truly.
B.P. AndarsonDiraotorLand Managaaant Branch
Whitnay Block, Room 6450Ouaan'a ParkToronto, OntarioM7A 1W3Phonat 416/965-1316
J. Skura/anc
cot Mr. H.J. Bergaann Willowdala, Ontario
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saoessEeaaaci TARP LAKE 200
GRID and CLAIM N UMBERS
Scale : l" = 1/2 mile
LEGEND
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3 -
3
MEASUREMENT STATIONS ALONG PICKET LINES .Electromagnetic reodings-in phase compo nent (y0) Ejectromagnetic readings-out of phase compo
COIL SEPARATION 300 ft.
ELECTRICAL CONDUCTOR.
Profile in phase component (scale l"s407o)
Prof i le out of phase component (scale r-' s4007o)
SYMBOLS
OU T CROP
TAG S NUMBER.
CLAIM POST a NUMBERS
SWAMP
ROA D
TRAIL
R Al LW A Y
POWER LINE
I Y P f (If WORK EM - 17
ELECTROMAGNETIC SURVEY.( l IE M
.j) A EXPLORATION LTDA H f A
TARP LAKE ONTARIO .
st At' t).\nl " * 400 f t. — F E B : l 3 3 2
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52009SEM81 52009SE8828C1 TARP LAKE 210
GRID and CLAIM NUMBERS
Scale: l " * 1/2 mile
LEGEND
•300L3CO
-200 ,400-
l l
l l
MEASUREMENT STATIONS ALONGPICKET LINESRELATIVE VALUES OF THE VERTICAL COMPONENT OF THE EART'HS MAGNETIC FIELD (m gammas)
MAGNETIC CONTOURS
ELECTRICAL CONDUCTOR.
BASE STATION
TO
TO.GAMMAS
.GAMMASOVER .GAMMAS
SYMBOLS
50
OUT CROP
TAG 8 NUMBER
CLAIM POST a NUMBERS
SWAMP
ROA D
TRAIL
R Al LWAY
POWER LINE
MAGNETOMETER SURVEY.
BORA EXPLORATION LTD
TARP LAKE ONTA R IO
11 * 400 ft. FE B : 133i \(- ( f
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