General Information
Secondary Commodities: molybdenum, tungsten
Aliases: J, On
Deposit Type(s): Skarn W
Location(s): 60.604170 N, -130.536110 W
NTS Mapsheet(s): 105B10
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Tung cl (Y64066) in Aug/71 by Wolf Lake JV (Rayrock ML, Ashland Can Oil L, and Can Industrial G & OL), which conducted grid soil sampling and mapping in 1972. Restaked as ON cl (YA44808) in Jul/79 by Regional Res L, which explored with mapping and geochem sampling later in 1979 and 1980. Klinkit JV (DuPont of Can EL & Duval Corp) added J cl (YA44081) to the east in Jun/79 and performed mapping and geochem sampling later in the year.
Capsule Geology
Scheelite occurs with minor pyrrhotite in garnet-diopside-tremolite skarn developed in limy portions of Cambrian or older sedimentary rocks at the margin of a small granodiorite batholith. Chip samples from a float train about 300 m long and up to 7 m thick assayed up to 0.5% WO3 and 0.01% Mo. Scheelite also occurs as disseminations in pegmatite. Rare molybdenite, galena and sphalerite were also reported. Skarn also occurs locally with minor scheelite, pyrrhotite and rare chalcopyrite in carbonate-cemented meta-grit.
The J group, staked on a GSC tungsten anomaly, is underlain by unmineralized roof pendants within the pluton.
References
GEOLOGICAL SURVEY OF CANADA Map 43-1978.
GEOLOGICAL SURVEY OF CANADA Open File 563.
LOGAN JOINT VENTURE, 1980. Assessment Report *#090573 by M.H. Sanguinetti and C.G. Verley.
MINERAL INDUSTRY REPORT 1971-72, p. 111.
REGIONAL RESOURCES LTD, Jan/80. Assessment Report by C.G. Verley.
WOLF LAKE JOINT VENTURE, 1972. Assessment Report *#061957 by R.J. Cathro.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 149.
Staked as Tung cl (Y64066) in Aug/71 by Wolf Lake JV (Rayrock ML, Ashland Can Oil L, and Can Industrial G & OL), which conducted grid soil sampling and mapping in 1972. Restaked as ON cl (YA44808) in Jul/79 by Regional Res L, which explored with mapping and geochem sampling later in 1979 and 1980. Klinkit JV (DuPont of Can EL & Duval Corp) added J cl (YA44081) to the east in Jun/79 and performed mapping and geochem sampling later in the year.
Capsule Geology
Scheelite occurs with minor pyrrhotite in garnet-diopside-tremolite skarn developed in limy portions of Cambrian or older sedimentary rocks at the margin of a small granodiorite batholith. Chip samples from a float train about 300 m long and up to 7 m thick assayed up to 0.5% WO3 and 0.01% Mo. Scheelite also occurs as disseminations in pegmatite. Rare molybdenite, galena and sphalerite were also reported. Skarn also occurs locally with minor scheelite, pyrrhotite and rare chalcopyrite in carbonate-cemented meta-grit.
The J group, staked on a GSC tungsten anomaly, is underlain by unmineralized roof pendants within the pluton.
References
GEOLOGICAL SURVEY OF CANADA Map 43-1978.
GEOLOGICAL SURVEY OF CANADA Open File 563.
LOGAN JOINT VENTURE, 1980. Assessment Report *#090573 by M.H. Sanguinetti and C.G. Verley.
MINERAL INDUSTRY REPORT 1971-72, p. 111.
REGIONAL RESOURCES LTD, Jan/80. Assessment Report by C.G. Verley.
WOLF LAKE JOINT VENTURE, 1972. Assessment Report *#061957 by R.J. Cathro.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 149.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1979 | Geology: Bedrock Mapping | |
| 1979 | Other | |
| 1972 | Geochemistry: Soil | |
| 1972 | Geology: Bedrock Mapping |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: Cassiar
Realm: Laurentia
Regional Geology - Bedrock
Supergroup: Windermere
Group/Suite: Ingenika
Formation: Swannell/Tsaydiz
Member:
Terrane: Cassiar
Period Max: Cryogenian
Age Max: 725 MA
Period Min: Ediacaran
Age Min: 550 MA
Rock Major: shale/sandstone/grit/quartzite
Rock Minor: marble/calc-silicate
Reference: Amakun & Lowey (1987) - YGS OF 1987-1
Geological Unit (1M): PCI
Geological Unit (250K): PCI1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 090573 | 1980 | Geological and Geochemical Report on the ON Claim Group | Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology | ||
| 061957 | 1972 | Tung Group Assessment Report | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 060884 | 1971 | Preliminary Report on the Red Claim Group of Boswell River Mines Ltd. in Liard River Area, Yukon Territory | Process/Interpret - Pre-existing Data |
