General Information
Secondary Commodities: barite, copper, zinc
Deposit Type(s): Skarn Pb-Zn
Location(s): 62.847220 N, -130.014170 W
NTS Mapsheet(s): 105J16
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Gun cl (73196) in Oct/57 by Newmont, which performed hand trenching, mapping and sampling in 1958. Restaked as Bee cl (Y22636) in Jan/68 by Spartan EL, which performed mapping and sampling later in the year, and as Fast cl (YA67200) in Sep/81 by a joint venture between Hudson Bay Mg and Minorco Can L, which prospected in 1982.
Capsule Geology
Sphalerite and chalcopyrite occur with pyrrhotite, pyrite, barite, witherite and several rare barium silicates (pellyite, gillespite, sanbornite, and taramellite) in pyroxene-garnet-quartz skarn lenses exposed in the floor of a cirque. A second poorly mineralized zone 60 m long and 10 m thick is exposed in the west wall.
Narrow barite veins up to 100 m long cut a hornfels zone developed in Ordovician to Lower Devonian chert and shale near the margins of a Cretaceous stock.
The Fast claims were staked on Upper Devonian hornfelsed shale containing barite.
References
CANADIAN MINERALOGIST, Vol. 11, 1972, p. 444-447.
GEOLOGICAL SURVEY OF CANADA Paper 69-55, p. 50.
MONTGOMERY, J.H., Apr/60. A Study of Barium Minerals from Yukon Territory. Unpublished B.Sc. thesis, University of British Columbia.
Staked as Gun cl (73196) in Oct/57 by Newmont, which performed hand trenching, mapping and sampling in 1958. Restaked as Bee cl (Y22636) in Jan/68 by Spartan EL, which performed mapping and sampling later in the year, and as Fast cl (YA67200) in Sep/81 by a joint venture between Hudson Bay Mg and Minorco Can L, which prospected in 1982.
Capsule Geology
Sphalerite and chalcopyrite occur with pyrrhotite, pyrite, barite, witherite and several rare barium silicates (pellyite, gillespite, sanbornite, and taramellite) in pyroxene-garnet-quartz skarn lenses exposed in the floor of a cirque. A second poorly mineralized zone 60 m long and 10 m thick is exposed in the west wall.
Narrow barite veins up to 100 m long cut a hornfels zone developed in Ordovician to Lower Devonian chert and shale near the margins of a Cretaceous stock.
The Fast claims were staked on Upper Devonian hornfelsed shale containing barite.
References
CANADIAN MINERALOGIST, Vol. 11, 1972, p. 444-447.
GEOLOGICAL SURVEY OF CANADA Paper 69-55, p. 50.
MONTGOMERY, J.H., Apr/60. A Study of Barium Minerals from Yukon Territory. Unpublished B.Sc. thesis, University of British Columbia.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1968 | Geology: Bedrock Mapping | |
| 1968 | Other | |
| 1958 | Geology: Bedrock Mapping | |
| 1958 | Other | |
| 1958 | Trenching: Hand |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Earn
Formation: Portrait Lk/Prevost/L Devonian beds?
Member:
Terrane: Laurentia
Period Max: Devonian
Age Max: 410 MA
Period Min: Devonian
Age Min: 359 MA
Rock Major: chert/shale/argillite
Rock Minor: barite/limestone
Reference: Gordey (1996) - GSC Map 19-1987, sheet 1
Geological Unit (1M): DME
Geological Unit (250K): DME2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 019035 | 1968 | 1968 Progress Report and Proposed Program 1969 Itsi Project | Silt - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC007345 | Correspondence Re: Gold prospect - Ross River area | Miscellaneous Company Documents | |
| ARMC016702 | Geochemical results map - 105J/16 - Itsi Lakes | Geochemical Map | |
| ARMC016703 | Geochemical sample stations map - 105J/16 - Itsi Lakes | Geochemical Map |
| Citations |
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