Occurrence Details


Occurrence Number:
105K 103
Occurrence Name:
Tenas
Occurrence Type:
Hard-rock
Status:
Prospect
Date printed:
4/28/2025 5:34:37 PM

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General Information
Capsule
Work History
Assessment Reports
References
Drill Core

General Information

Secondary Commodities: arsenic, bismuth, gold, lead, zinc
Deposit Type(s): Sediment hosted Sedimentary Exhalative Zn-Pb-Ag (Sedex)
Location(s): 62°2'54" N - -132°13'54" W
NTS Mapsheet(s): 105K01
Location Comments: 1 Kilometres
Hand Samples Available: No
Last Reviewed:

Capsule

Work History

Staked as Tenas cl 1-41 (Y80346) in Aug/74 by Welcome North Mines Ltd which staked the adjoining Mat and Bar claims at the same time. In 1975 Welcome North optioned the claim block to Boliden-Preussag Exploration Ltd which explored with mapping, geochemical sampling, a Turam survey and 2 diamond drill holes (306 m) on the Tenas claims.
Reoptioned in 1976 by Tenas Joint Venture (Du Pont of Canada Exploration Ltd and Western Mines Ltd), which staked a large block of T claims to the south, late in the year. In 1977 the joint venture explored with mapping, geochemical sampling, a gravity survey and one diamond drill hole (120 m) on the Tenas claims. In 1978 the joint venture carried out, a helicopter-borne mag-EM survey over most of their claim block.
In 1981, the Tenas group was optioned by Cyprus Anvil Mining Corporation, which drilled 2 holes (920 m) on the Tenas claims. The company performed minor property work in 1982. The Du Pont interest was transferred to CSA Minerals Inc in 1984 and to Goldsearch Inc in 1985.
Restaked as Breakaway cl 1-10 (YB57481) by Expatriate Resources Ltd in Mar/95. Between Jun and Oct/95 Expatriate added Breakaway cl 11-40 (YB57645) to their claim holdings. In the summer of 1995 Expatriate carried out a small exploration program consisting of hand trenching, soil sampling, prospecting and geological mapping. In 1996 Expatriate carried out geological mapping, prospecting, grid soil sampling, HLEM and magnetometer surveying and machine trenching. The company drilled a single hole (92 m) in 1997.

Capsule Geology

The occurrence is located within the northwestern part of the Finlayson Lake segment of the Yukon-Tanana Terrane. Mapping by Expatriate Resources Ltd shows that the occurrence is probably underlain by mid to Upper Paleozoic biotite muscovite phyllites and rhyolites. A mid-Cretaceous age, quartz monzonite stock occurs in the northern part of the claim block and as dykes within the biotite muscovite phyllite. The 1977 drilling tested an EM conductor with coincident geochemical response, and intersected minor sphalerite and galena in pyritic quartz-sericite phyllite.
Expatriate focused most of its efforts on relocating roads, grids, drill hole locations and two Pb-Zn soil geochemical anomalies previously discovered in 1976 by the Tenas Joint Venture on the original Tenas claims. The soil samples returned high Pb and Zn values but also yielded anomalous results for elements which were not previously reported including Cu, Ag, Mo, As and Bi. Hand pitting uphill of the geochemical anomaly yielded anomalous gold values from a 0.4 m thick hematitic soil horizon, which machine trenching showed was related to a zone of limonite hosted by phyllite. Drill testing beneath the limonite zone intersected a 22 cm wide horizon containing semi-massive pyrrhotite and minor sphalerite.

References

BOLIDEN-PRESUSSAG EXPLORATION LTD, 1975. Assessment Report *#090004 by J.B.P. Sawyer.

BOLIDEN-PRESUSSAG EXPLORATION LTD, Aug/76. Assessment Report *#091200 by H. Linder.

CYPRUS ANVIL MINING CORPORATION, Nov/81. Assessment Report #090898 by J.W. Mustard.

DU PONT OF CANADA EXPLORATION LTD, Oct/77. Assessment Report *#091201 by R. MacLean.

DU PONT OF CANADA EXPLORATION LTD, Oct/77. Assessment Report #092905 by R. MacLean.

EXPATRIATE RESOURCES LTD, Jun/96. Assessment Report #093486 by W.A. Wengzynowski.

EXPATRIATE RESOURCES LTD, Mar/97. Assessment Report #093629 by G.J. Duso.

EXPATRIATE RESOURCES LTD, Mar/98. Assessment Report #093823 by W.A. Wengzynowski.

MINERAL INDUSTRY REPORT 1975, p. 113-114; 1977, p. 62-63; 1978, p. 40.

TENAS JOINT VENTURE, 1977. Assessment Report *#061652 by F.M. Smith.

TENAS JOINT VENTURE, 1977. Assessment Report *#061653 by C.A. Ager.

TENAS JOINT VENTURE, 1977. Assessment Report *#090262 by F.M. Smith et al.

YUKON EXPLORATION AND GEOLOGY 1981, p. 154; 1982, p. 11.

Work History

Date Work Type Comment
12/31/1997 Drilling One hole, 92 m.
12/31/1996 Geology
12/31/1996 Geochemistry
12/31/1996 Ground Geophysics Also HLEM survey.
12/31/1996 Other
12/31/1996 Trenching
12/31/1995 Geology
12/31/1995 Geochemistry
12/31/1995 Trenching
12/31/1995 Other
12/31/1982 Other
12/31/1981 Drilling Two holes, 920 m.
12/31/1978 Airborne Geophysics Also magnetic survey.
12/31/1977 Ground Geophysics
12/31/1977 Drilling One hole, 120 m.
12/31/1977 Geology
12/31/1977 Geochemistry
12/31/1975 Drilling Two holes, 305.7 m.
12/31/1975 Geology
12/31/1975 Geochemistry
12/31/1975 Ground Geophysics Turam survey.

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
093823 1997 Assessment Report Describing Diamond Drilling on the Breakaway Property Diamond - Drilling, Drill Core - Geochemistry 1 92
093629 1996 Assessment Report Describing Geological Mapping, Prospecting, Geochemistry, Geophysics and Excavator Trenching on the Breakaway Property Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Prospecting - Other, Backhoe - Trenching
093486 1995 Assessment Report Describing Prospecting, Hand Trenching and Geochemical Surveys on the Breakaway Property Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Hand - Trenching
090438 1978 Helicopter Magnetic and Electromagnetic Survey Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics
061652 1977 Report on Geochemical Soil Survey of the Project Area Soil - Geochemistry
061653 1977 Tenas Project Gravity Survey Gravity Survey - Ground Geophysics
090262 1977 [Reports on Gravity, Geochemistry and Geology on the Tenas Project] Soil - Geochemistry, Bedrock Mapping - Geology, Gravity Survey - Ground Geophysics
061317 1975 A Report on Turam Electromagnetic Surveys EM - Ground Geophysics
091200 1975 [Diamond Drilling on Tenas Claim Group by Boliden-Preussag Exploration] Diamond - Drilling, Drill Core - Geochemistry 2 305.70
090004 1975 [Reports on the 1975 Work Program on the Mal, Bar and Tenas Claim Groups] Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Line Cutting - Other
092062 1966 Geological Map of Faro area Regional Bedrock Mapping - Geology

Related References

Number Title Page(s) Reference Type Document Type
ARMC010393 Airborne electromagnetic survey profiles and filtered magnetic map - Ross River area - Tenas project - sheet 3 of 5 Property File Collection Geophysical Map
ARMC010394 Airborne electromagnetic survey profiles and filtered magnetic map - Ross River area - Tenas project - sheet 4 of 5 Property File Collection Geophysical Map
ARMC010395 Airborne electromagnetic survey profiles and filtered magnetic map - Ross River area - Tenas project - sheet 5 of 5 - Map 1B Property File Collection Geophysical Map
ARMC010396 Airborne electromagnetic survey profiles and filtered magnetic map - Ross River area - Tenas project - sheet 1 of 5 - Map 1A Property File Collection Geophysical Map
ARMC010397 Airborne electromagnetic survey profiles and filtered magnetic map - Ross River area - Tenas project - sheet 2 of 5 Property File Collection Geophysical Map
ARMC010398 Geology map - Anvil area compilation - Tenas Creek Property File Collection Geoscience Map (Geological - Bedrock)
ARMC010399 D0-D1 structural map - 105K/01 Property File Collection Geoscience Map (Geological - Bedrock)
ARMC010400 D2-post D2 structural map - 105K/01 Property File Collection Geoscience Map (Geological - Bedrock)
ARMC010401 Geological map - Tenas Project - sheet 4 of 4 Property File Collection Geoscience Map (Geological - Bedrock)
ARMC010402 Geochemical values map - Cu, Pb, Zn, Ba - MacMillan project - 105K-1 detail area Property File Collection Geochemical Map
ARMC003593 Re: Summary report on Anvil and Tenas properties Property File Collection Miscellaneous Company Documents
ARMC010365 Map - Tenas property - sheet 1 Property File Collection Geoscience Map (General)
ARMC010366 Map - Tenas property - sheet 2 Property File Collection Geoscience Map (General)
ARMC010367 Map - Tenas property - sheet 3 Property File Collection Geoscience Map (General)
ARMC010368 Map - Tenas property - sheet 5 Property File Collection Geoscience Map (General)
ARMC010373 Base line and grid section lines map - Mal, Bar, Wop, Tenas, Bell, T mineral claims - Tenas option Property File Collection Geoscience Map (General)
ARMC010374 Tenas Creek Joint Venture Claim Map - 'T' claims 401-826 - Tenas Creek area - Map No. 1 Property File Collection Geochemical Map
ARMC010375 Zinc geochemical contours map - Mal, Bar, Wop, Tenas, Bell, and T mineral claims - Tenas option - Map no. 5 Property File Collection Geochemical Map
ARMC010376 Lead geochemical contours map - Mal, Bar, Wop, Tenas, Bell, and T mineral claims - Tenas option - Map no. 4 Property File Collection Geochemical Map
ARMC010377 Copper geochemical contours map - Mal, Bar, Wop, Tenas, Bell and T mineral claims - Tenas option - Map no. 3 Property File Collection Geochemical Map
ARMC010378 Geological & claims status map - Tenas Creek area - Figure 1 Property File Collection Geoscience Map (Geological - Bedrock)
ARMC013605 Report of 1977 activities and results on the Mal, Bar, Tenas and Bell claims for Welcome North Mines Limited - With Figures 1 & 2 and Drawings 77-9, 77-8, 77-7, 77-15, 77-14, 77-13, 3-2, 3-1, 5-2, 5-1, 4-2, 4-1. - Tenas project Property File Collection Report
ARMC013537 Geological and drilling report - Mal, Bar, Wop, Tenas, Bell and T claim groups - 'Tenas option' - Field work completed Aug 12 to Oct 19, 1982 Property File Collection Report
ARMC013541 Report on 1977 work programme for Teck Mining Group Limited and R.E. Chaplin - Wop claims Property File Collection Report
ARMC013542 Report on Anvil project exploration programme 1974 - Project No. 303 Property File Collection Report
ARMC013601 Tenas correlation report Property File Collection Report
ARMC013532 Tenas Creek with field markings on existing and 1981 extended grid lines - NTS 105K-1 Property File Collection Geoscience Map (General)
ARMC013538 Report on the geology of the T, Tenas, Wop, Bar and Mal claims - Tenas joint venture Property File Collection Report
ARMC013534 Report on the reconnaissance spectral IP survey - Tenas project Property File Collection Report
ARMC013535 Report on the reconnaissance spectral IP survey - Tenas project, Whitehorse Mining District, Y.T. - Vol II (a) - Data plots Property File Collection Report
ARMC013536 Report on the reconnaissance spectral IP survey - Tenas project, Whitehorse Mining District, Y.T. - Vol II (b) - Data plots Property File Collection Report
ARMC013530 Report on the Tenas Creek project, Ross River, Y.T. Property File Collection Report
ARMC013598 Report on the Tenas project for Bolider-Preussag Exploration Property File Collection Report
ARMC013533 Sketch claim map for Tenas Creek showing T claims Property File Collection Geoscience Map (General)
ARMC013531 Map of Tenas Creek showing location sketch for 1981 cut lines on Tenas project - NTS 105K-1 Property File Collection Geoscience Map (General)
ARMC013599 Lithologic logs - Tenas Property File Collection Drill Logs
ARMC013539 Geological, geophysical, geochemical surveys and diamond drill results - Wop mineral claims - Tenas Creek area - Field work competed in 1974 between July and September Property File Collection Report
ARMC013540 Gravity survey - Wop claims grid - Addendum: Second vertical derivative Property File Collection Report
ARMC019494 Field notes - Tenas Property File Collection Miscellaneous Company Documents
ARMC013600 Excerpts from a report - Gravity interpretations of the Pelly, Bar, Tenas anomalies - Tenas Creek area - Excerpt for Welcome North Feb 1 1979 - Figures 4, 5, 6, 7, 3-3, 4-3, 5-3 and Drawing T. 77-12 Property File Collection Report
ARMC013603 Diamond drill core logs and drilling agreement - Tenas option Property File Collection Drill Logs

Drill core at YGS core library

Number Property Year Drilled Core Size Photos Data
T-79-3 Tenas 1979 BQWL 28 1
T-79-8 Tenas 1979 BQWL 6 1