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Occurrence Details


Occurrence Number
105J 029
Occurrence Name
Hench
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: copper, zinc, silver, lead
Deposit Type(s): Skarn Pb-Zn
Location(s): 62.038330 N, -131.39 W
NTS Mapsheet(s): 105J03
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Hench cl (YA34550) in Aug/78 by St Joseph EL, which explored with mapping and geochem surveys later in 1978, and geochem, VLF, EM and IP surveys in 1979, and 5 holes (556 m) in 1980. Getty Can Mls L tied on Clingon cl (YA56270) on the east side in Jul/80 and performed mapping and geochem sampling later in the year. St Joseph changed its name to Sulpetro Mls L in 1981.

Capsule Geology

Galena, sphalerite and minor chalcopyrite occur in veins and a thin skarn zone developed in phyllite and schist of Ordovician to Devonian age near the margin of a small stock of Tertiary quartz-feldspar porphyry. The best surface assays were 18.9% Pb, 14.8% Zn, 82.3 g/t Ag and 0.06% Cu across a thickness of 15 cm.
The geophysical surveys outlined a carbonaceous black shale horizon thought be part of the Devono-Mississippian Earn Group. The shale is moderately anomalous in Cu, Pb, Zn, Ag and Ba. The drilling tested the best geophysical and geochemical targets for stratabound mineralization, with disappointing results.
A chalcopyrite-bearing quartz vein in shale was found to be the source of a geochemical anomaly on the Clingon group.

References

MINERAL INDUSTRY REPORT 1978, p. 71.

ST. JOSEPH EXPLORATION LTD, 1978. Assessment Report *#090469 by D. Hendry.

ST. JOSEPH EXPLORATION LTD, 1979. Assessment Report *#090526 by D. Hendry and J.L. Wright.

ST JOSEPH EXPLORATION LTD, Oct/80. Assessment Report #090662 by D.C. Miller.

YUKON GEOLOGY AND EXPLORATION 1979-80, p. 193-194.

Location Map

Last Updated: Jul 19, 2018

Work History

Year Work Type Comment
1980 Drilling: Diamond Five holes, 556 m.
1979 Geochemistry: Soil Also rock sampling.
1979 Ground Geophysics: EM Also VLF and IP surveys.
1978 Geochemistry: Soil
1978 Geology: Bedrock Mapping

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite:
Formation: Vangorda
Member:
Terrane: Laurentia
Period Max: Cambrian
Age Max: 500 MA
Period Min: Ordovician
Age Min: 472 MA
Rock Major: phyllite, schist
Rock Minor: marble, calc-silicate, gabbro
Reference: Gordey (2013) - GSC Map 2149A, Sheet 1
Geological Unit (1M): COR
Geological Unit (250K): COR1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
094914 2007 Assessment Report Describing Geology, Geochemistry, Geophysics, Mineralization, Soil Sampling, Excavator Trenching and Diamond Drilling at the Tidd Property Diamond - Drilling, Soil - Geochemistry, Mechanical - Trenching 2 314
094835 2006 Assessment Report Describing Geology, Geochemistry, Geophysics, Mineralization and Diamond Drilling at the Tidd Property VTEM - Airborne Geophysics, Diamond - Drilling, Soil - Geochemistry, Magnetics - Ground Geophysics, Line Cutting - Other 16 1890
094611 2005 Assessment Report Describing Geology, Geochemistry, Geophysics and Mineralization at the Tidd Property Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics
090662 1980 [1980 Diamond Drilling Report on the Hench Claims] Diamond - Drilling 5 556.60
090526 1979 Progress Report on the Hench Claims (1979 Programme) Covering: Line Cutting, Geophysics, Geochemistry Rock - Geochemistry, Soil - Geochemistry, EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other, Hand - Trenching
090469 1978 Geological and Geochemical Report on the Hench Claims Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Line Cutting - Other

Related References

Number Title Page(s) Document Type
ARMC001815 EM map with topographic markings - Cook Lake area Geophysical Map
ARMC001816 EM map with survey lines - Cook Lake area Geophysical Map
ARMC006287 Geochemical values map - Cu, Pb, Zn - MacMillan project Geochemical Map
ARMC006288 Geochemical values map - Cu, Pb, Zn - MacMillan project Geochemical Map
ARMC016671 Geochemical results map - 105J/3 - Timber Creek Geochemical Map
ARMC017635 Topographic map with field markings showing shale finds Geoscience Map (General)
ARMC016672 Geochemical sample stations - 105J/3 - Timber Creek Geochemical Map
ARMC018717 Field map with notations - 105J/3 Geoscience Map (General)
ARMC018719 Geochemical values map with notations - Cu, Pb, Zn - Anerd Grid - MacMillan project Geochemical Map
Citations

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
TD-06-01 Tidd 2006 BTW 0 3
TD-06-02 Tidd 2006 BTW 0 3
TD-06-03 Tidd 2006 BTW 0 4
TD-06-04 Tidd 2006 BTW 0 4
TD-06-08 Tidd 2006 BTW 0 4
TD-06-11 Tidd 2006 BTW 0 4

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