General Information
Secondary Commodities: copper, gold, molybdenum, silver, tungsten
Deposit Type(s): Skarn Cu
Location(s): 61.556940 N, -137.628610 W
NTS Mapsheet(s): 115H12
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Thatch cl 1-42 (Y63648) in Oct/71 by Can Occidental Pet L following a regional geochemical exploration program. Can Occidental conducted a mag survey, geological mapping, grid soil sampling and added the Hatch cl 1-36 (Y67644) to the south in 1972, enlarged the property and performed mapping, geochem sampling and mag and VLFEM surveys in 1981 and trenching and geochem sampling in 1982 in a joint venture with Eldorado Nuclear L.
Hudson Bay Mg optioned the property in 1984 and explored with VLF EM and mag surveys and 12 holes (886 m) later in the year. Kerr Addison ML staked the HIK cl 1-32 (YA78197) 3.2 km to the southwest in Aug/83 and performed mapping and geochem surveys in 1984.
Capsule Geology
Molybdenite, scheelite and chalcopyrite occur in skarns formed in carbonate-rich layers in Nisling Terrane metasedimentary rocks near the contact of the Eocene Nisling Range Alaskite and weakly gossanous Tertiary volcanic rocks. Two types of skarn were found, calc-silicate and garnet-diopside with magnetite, pyrite and pyrrhotite. Best assays from chip samples were 0.05% W03, 0.1% Cu, .03% Mo, 2.6 ppm Ag and 115 ppb Au over widths ranging up to 2.4 m.
The Hudson Bay work was directed toward precious metals near the plutonic contact, where sheeted quartz sulphide veins are superimposed on an earlier extensive vein stockwork. The best assay from the 1984 drilling was 6.89 g/t Au and 13.7 g/t Ag over 0.2 m.
The HIK group was staked on a 400 m wide argillic zone with local silicification and chalcedonic veining, which cuts a felsic volcanic assemblage.
References
CANADIAN OCCIDENTAL PETROLEUM LTD, 1972. Assessment Report *#061102 by C.F. Gleeson and D. Bhatia.
CANADIAN OCCIDENTAL PETROLEUM LTD, 1973. Assessment Report *#060107 by N. Saracoglu.
CANADIAN OCCIDENTAL PETROLEUM LTD, 1982. Assessment Report *#091063 by R.M. Kuehnbaum.
HUDSON BAY EXPLORATION AND DEVELOPMENT COMPANY LTD, Aug/84. Assessment Report *#091550 by D.A. Downing.
KERR ADDISON MINES LTD, Sep/84. Assessment Report *#091555 by D. Arscott and H. Copland.
MINERAL INDUSTRY REPORT, 1973, p. 68-69
YUKON EXPLORATION AND GEOLOGY 1981, p. 213; 1982, p. 198; 1984, p. 183.
Staked as Thatch cl 1-42 (Y63648) in Oct/71 by Can Occidental Pet L following a regional geochemical exploration program. Can Occidental conducted a mag survey, geological mapping, grid soil sampling and added the Hatch cl 1-36 (Y67644) to the south in 1972, enlarged the property and performed mapping, geochem sampling and mag and VLFEM surveys in 1981 and trenching and geochem sampling in 1982 in a joint venture with Eldorado Nuclear L.
Hudson Bay Mg optioned the property in 1984 and explored with VLF EM and mag surveys and 12 holes (886 m) later in the year. Kerr Addison ML staked the HIK cl 1-32 (YA78197) 3.2 km to the southwest in Aug/83 and performed mapping and geochem surveys in 1984.
Capsule Geology
Molybdenite, scheelite and chalcopyrite occur in skarns formed in carbonate-rich layers in Nisling Terrane metasedimentary rocks near the contact of the Eocene Nisling Range Alaskite and weakly gossanous Tertiary volcanic rocks. Two types of skarn were found, calc-silicate and garnet-diopside with magnetite, pyrite and pyrrhotite. Best assays from chip samples were 0.05% W03, 0.1% Cu, .03% Mo, 2.6 ppm Ag and 115 ppb Au over widths ranging up to 2.4 m.
The Hudson Bay work was directed toward precious metals near the plutonic contact, where sheeted quartz sulphide veins are superimposed on an earlier extensive vein stockwork. The best assay from the 1984 drilling was 6.89 g/t Au and 13.7 g/t Ag over 0.2 m.
The HIK group was staked on a 400 m wide argillic zone with local silicification and chalcedonic veining, which cuts a felsic volcanic assemblage.
References
CANADIAN OCCIDENTAL PETROLEUM LTD, 1972. Assessment Report *#061102 by C.F. Gleeson and D. Bhatia.
CANADIAN OCCIDENTAL PETROLEUM LTD, 1973. Assessment Report *#060107 by N. Saracoglu.
CANADIAN OCCIDENTAL PETROLEUM LTD, 1982. Assessment Report *#091063 by R.M. Kuehnbaum.
HUDSON BAY EXPLORATION AND DEVELOPMENT COMPANY LTD, Aug/84. Assessment Report *#091550 by D.A. Downing.
KERR ADDISON MINES LTD, Sep/84. Assessment Report *#091555 by D. Arscott and H. Copland.
MINERAL INDUSTRY REPORT, 1973, p. 68-69
YUKON EXPLORATION AND GEOLOGY 1981, p. 213; 1982, p. 198; 1984, p. 183.
Location Map
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Finlayson
Formation:
Member: meta-siliclastic
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 375 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: psammitic schist
Rock Minor: pelitic schist
Reference: Israel et al. (2011) - YGS OF 2011-2
Geological Unit (1M): DMF
Geological Unit (250K): DMF3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 060107 | 1973 | Geology, Geochemistry and Ground Magnetometry of the Hatch Claims and Ground Maganetometry of the Thatch Claims | Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Line Cutting - Other |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC013178 | Air photo overlays and silt sample notes of Victor OEX and Nisling - 115-H-12 | Geoscience Map (General) | |
| ARMC013175 | Map sheet 115H-12 of Albert Creek with geological notations | Geoscience Map (Geological - Bedrock) | |
| ARMC016657 | Geology map - 115H/12 - Albert Creek | Geoscience Map (Geological - Bedrock) | |
| ARMC013177 | Map of Albert Creek with field markings - Aeromagnetic series map 3294G | Geophysical Map | |
| ARMC013176 | Map of Albert Creek with geology field markings - Aeromagnetic series map 3294G | Geophysical Map | |
| ARMC016658 | Geochemistry map - 115H/12 - Albert Creek | Geochemical Map |
| Citations |
|---|
Drill Core at YGS Core Library
| Number | Property | Year Drilled | Core Size | Photos | Data |
|---|---|---|---|---|---|
| DDH-84-01 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-02 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-03 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-04 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-05 | Thatch | 1984 | BQ | 0 | 0 |
| DDH-84-06 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-07 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-08 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-09 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-11 | Thatch | 1984 | NQ | 0 | 0 |
| DDH-84-12 | Thatch | 1984 | NQ | 0 | 0 |
