General Information
Secondary Commodities: gold, silver, zinc
Deposit Type(s): Volcanogenic Massive Sulphide (VMS) Besshi Cu-Zn
Location(s): 61.376670 N, -139.256390 W
NTS Mapsheet(s): 115G06
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Discovered by placer miners between 1903 and 1914. Staked as Flyjac cl (Y8018) in May/66 by J. Smith and as CU cl (Y9892) in Aug/66 by R. Granger, who performed trenching in 1967. Restaked as Cop cl (Y35058) in May/69 and as Pud cl (Y51803) in Apr/70 by P. Southwick.
L.B. Halferdahl & Assoc staked 150 EL & Jan cl (YA75206) to the south and southeast in Oct/82-Feb/84 and performed mapping and geochem sampling in 1983-84. The claims were then transferred to Tatam Resources Ltd, which performed road construction in 1985 and 1986. In 1987, the claims were transferred to Nathan Minerals Inc., which performed airborne and magnetic surveys, and ground magnetic and Genie surveys and soil sampling in 1988 and line cutting, road construction and drilling in 1989.
L.B. Halferdahl tied on El, Jan, JJ etc claims to the south and east in October, 1987 and added Jaq cl (YB13997) to the north in Jun/88.
Capsule Geology
The original showing, which lies north of the Jaq claims, consists of chalcopyrite, chalcocite and bornite stringers in Upper Triassic Nikolai Greenstone.
Nathan Minerals' work has been directed toward Permo-Pennsylvanian metavolcanic rocks on the south side of Burwash Creek. The 1989 drillholes tested a geophysical anomaly on the EL claims south of Burwash Creek. Tuff in this area contained up to 5% pyrite in veins, blebs and disseminations. Values up to 1 025 ppb Au were obtained from clay-altered volcanic rocks, and graphitic core and sludge contained up to 260 ppb Au, 3.9 ppm Ag and 548 ppm Zn.
References
DODDS, C.J., AND CAMPBELL, R.B., 1992. Overview, legend and mineral deposit tabulations for Geological Survey of Canada Open Files 2188, 2189, 2190 and 2191.
GEOLOGICAL SURVEY OF CANADA, Open File 381.
GEOLOGICAL SURVEY OF CANADA Summary Report 1904.
GEOLOGICAL SURVEY OF CANADA Summary Report 1914, p. 31.
NATHAN MINERALS INC, Apr/88. Assessment Report *#092529 by L.B. Halferdahl.
NATHAN MINERALS INC, 1990. Assessment Report *#092838 by L.B. Halferdahl.
NATHAN MINERALS INC., Feb/90. Yukon Exploration Incentives Program Report #093112 by L.B. Halferdahl (EIP89-053).
NATHAN MINERALS INC., Apr/90. Assessment Report #092950 by L.B. Halferdahl.
YUKON EXPLORATION AND GEOLOGY 1983, p. 246.
YUKON MINING AND EXPLORATION OVERVIEW 1988, p. 34.
YUKON EXPLORATION 1985-86, p. 315-316.
Discovered by placer miners between 1903 and 1914. Staked as Flyjac cl (Y8018) in May/66 by J. Smith and as CU cl (Y9892) in Aug/66 by R. Granger, who performed trenching in 1967. Restaked as Cop cl (Y35058) in May/69 and as Pud cl (Y51803) in Apr/70 by P. Southwick.
L.B. Halferdahl & Assoc staked 150 EL & Jan cl (YA75206) to the south and southeast in Oct/82-Feb/84 and performed mapping and geochem sampling in 1983-84. The claims were then transferred to Tatam Resources Ltd, which performed road construction in 1985 and 1986. In 1987, the claims were transferred to Nathan Minerals Inc., which performed airborne and magnetic surveys, and ground magnetic and Genie surveys and soil sampling in 1988 and line cutting, road construction and drilling in 1989.
L.B. Halferdahl tied on El, Jan, JJ etc claims to the south and east in October, 1987 and added Jaq cl (YB13997) to the north in Jun/88.
Capsule Geology
The original showing, which lies north of the Jaq claims, consists of chalcopyrite, chalcocite and bornite stringers in Upper Triassic Nikolai Greenstone.
Nathan Minerals' work has been directed toward Permo-Pennsylvanian metavolcanic rocks on the south side of Burwash Creek. The 1989 drillholes tested a geophysical anomaly on the EL claims south of Burwash Creek. Tuff in this area contained up to 5% pyrite in veins, blebs and disseminations. Values up to 1 025 ppb Au were obtained from clay-altered volcanic rocks, and graphitic core and sludge contained up to 260 ppb Au, 3.9 ppm Ag and 548 ppm Zn.
References
DODDS, C.J., AND CAMPBELL, R.B., 1992. Overview, legend and mineral deposit tabulations for Geological Survey of Canada Open Files 2188, 2189, 2190 and 2191.
GEOLOGICAL SURVEY OF CANADA, Open File 381.
GEOLOGICAL SURVEY OF CANADA Summary Report 1904.
GEOLOGICAL SURVEY OF CANADA Summary Report 1914, p. 31.
NATHAN MINERALS INC, Apr/88. Assessment Report *#092529 by L.B. Halferdahl.
NATHAN MINERALS INC, 1990. Assessment Report *#092838 by L.B. Halferdahl.
NATHAN MINERALS INC., Feb/90. Yukon Exploration Incentives Program Report #093112 by L.B. Halferdahl (EIP89-053).
NATHAN MINERALS INC., Apr/90. Assessment Report #092950 by L.B. Halferdahl.
YUKON EXPLORATION AND GEOLOGY 1983, p. 246.
YUKON MINING AND EXPLORATION OVERVIEW 1988, p. 34.
YUKON EXPLORATION 1985-86, p. 315-316.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1967 | Trenching | |
| 1966 | Other | Reconnaissance scale. |
Regional Geology - Terrane
Group: Insular
Affinity: NE Panthalassa
Name: Wrangellia
Realm: Panthalassa
Regional Geology - Bedrock
Supergroup:
Group/Suite:
Formation: Nikolai
Member: volcanic
Terrane: Wrangellia
Period Max: Triassic
Age Max: 229 MA
Period Min: Triassic
Age Min: 204 MA
Rock Major: basalt
Rock Minor: volcanic breccia
Reference: Israel & van Zeyl (2004) - YGS OF 2004-20
Geological Unit (1M): uTrN
Geological Unit (250K): uTrN2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 092054 | 1953 | Report on the Geophysical Surveys in the Shakwak Valley Area, Yukon Territory for Canalask Nickel Mines Limited. | Magnetic - Airborne Geophysics |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC006614 | Property submission report - Bur syndicate property | Report | |
| ARMC006615 | Kluane syndicate exploration proposal - 1973 | Report |
| Citations |
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