General Information
Secondary Commodities: tungsten
Deposit Type(s): Skarn W
Location(s): 61.843060 N, -129.197780 W
NTS Mapsheet(s): 105H14
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as WOAH cl (YA25740) in Sep/77 by Welcome North ML, which explored with mapping and sampling in 1977 and 1978. Riocanex explored in 1979 with rock geochem sampling and 4 holes (191 m) under a brief option. In 1981, the property was optioned briefly to Union Carbide EL.
Capsule Geology
Four scheelite showings occur in garnet-diopside-quartz skarn developed in screens and xenoliths of Proterozoic limestone and limy phyllite along the margin of the Mt Billings Batholith. The mineralization tends to be deficient in sulphides although pyrrhotite, pyrite, chalcopyrite and sphalerite are locally present in minor amounts. Quartz veins cutting the skarn contain scheelite, molybdenite, chalcopyrite and anomalous amounts of radioactive minerals.
Chip sampling of the best scheelite occurrence (A showing) in 1977 indicated an average grade of 0.4% WO3, but the 1979 surface sampling returned an average grade of 0.09% WO3. Drilling failed to intersect the Woah A mineralization. The best intersection from the Woah B assayed 0.02% WO3 over 29.7 m.
References
DICK, L.A., 1980. A comparative study of the geology, mineralogy, and conditions of formation of contact metasomatic mineral deposits in the northeastern Canadian Cordillera. Unpublished Ph.D. Thesis, Queen's University, p. 8, 118, 123-126, 163, 179-180.
GEOLOGICAL SURVEY OF CANADA Paper 78-lA, p. 289-290.
MINERAL INDUSTRY REPORT 1978, p. 68.
RIOCANEX, Dec/79. Assessment Report #090516 by D.C. Durin.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 187-188.
Staked as WOAH cl (YA25740) in Sep/77 by Welcome North ML, which explored with mapping and sampling in 1977 and 1978. Riocanex explored in 1979 with rock geochem sampling and 4 holes (191 m) under a brief option. In 1981, the property was optioned briefly to Union Carbide EL.
Capsule Geology
Four scheelite showings occur in garnet-diopside-quartz skarn developed in screens and xenoliths of Proterozoic limestone and limy phyllite along the margin of the Mt Billings Batholith. The mineralization tends to be deficient in sulphides although pyrrhotite, pyrite, chalcopyrite and sphalerite are locally present in minor amounts. Quartz veins cutting the skarn contain scheelite, molybdenite, chalcopyrite and anomalous amounts of radioactive minerals.
Chip sampling of the best scheelite occurrence (A showing) in 1977 indicated an average grade of 0.4% WO3, but the 1979 surface sampling returned an average grade of 0.09% WO3. Drilling failed to intersect the Woah A mineralization. The best intersection from the Woah B assayed 0.02% WO3 over 29.7 m.
References
DICK, L.A., 1980. A comparative study of the geology, mineralogy, and conditions of formation of contact metasomatic mineral deposits in the northeastern Canadian Cordillera. Unpublished Ph.D. Thesis, Queen's University, p. 8, 118, 123-126, 163, 179-180.
GEOLOGICAL SURVEY OF CANADA Paper 78-lA, p. 289-290.
MINERAL INDUSTRY REPORT 1978, p. 68.
RIOCANEX, Dec/79. Assessment Report #090516 by D.C. Durin.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 187-188.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1979 | Drilling: Diamond | Number of holes drilled: 4 Amount of work done: 191 METRES |
| 1979 | Other | |
| 1977 | Geology: Bedrock Mapping | |
| 1977 | Other |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Hyland River
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 106 MA
Period Min: Cretaceous
Age Min: 100 MA
Rock Major: biotite granodiorite
Rock Minor: hornblende-biotite granodiorite, minor muscovite-biotite quartz monzonite
Reference: Moynihan (2018) - in preparation
Geological Unit (1M): mKH
Geological Unit (250K): mKgH
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 090516 | 1979 | Woah Option Geology & Drilling, 1979 | Diamond - Drilling, Rock - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other | 6 | 351.10 |
| 090357 | 1977 | Geological Report on the Woah 1-56 and Tai 1-20 Claim Groups | Rock - Geochemistry, Detailed Bedrock Mapping - Geology, Regional Bedrock Mapping - Geology, Prospecting - Other | ||
| 019136 | 1968 | 1968 Progress Report and Proposed Program 1969 | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 019915 | 1967 | Property Report on Lee, Thor, Zeus, Pal, Star and Spar Mineral Claim Groups, Yukon Territory, Canada | Regional Bedrock Mapping - Geology, Property Evaluation - Other |
