General Information
Secondary Commodities: copper, molybdenum
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 61°22'28" N - -139°26'9" W
NTS Mapsheet(s): 115G06
Location Comments: .5 Kilometres
Hand Samples Available: No
Last Reviewed:
Capsule
Work History
First staked as Betsy, Olga and Clem cl (63296) in Jul/52 by P. Versluce, H. Versluce and C. Eminger. Restaked as Cork cl (Y9756) in Jul/66 during a reconnaissance geochem program by a syndicate composed of Imperial OL, Alcon Pet L and Can Industrial G & OL. Alcon's interest was later assigned to Bow Valley Res L. Exploration consisted of preliminary mapping and limited magnetic, IP and soil sampling surveys in 1967, detailed mapping and road building in 1969 and 8 holes (805 m) in 1970.
Restaked as Granite cl (YA24066) in Apr/79 by G. Harris and as JY cl (YA51133) in Oct/80 by L.B. Halferdahl & Assoc (BUR Synd), which mapped and sampled in 1981, trenched in 1984 and transferred its property in 1985 to Tatam Res L. In 1987, the claims were transferred to Nathan Mls Inc, which performed airborne and ground VLF and magnetic surveys and soil sampling in 1988. Road improvements were done in 1989.
Capsule Geology
Disseminated pyrite, chalcopyrite and molybdenite occur in quartz veins and dry fractures cutting irregular sills or dykes of Tertiary feldspar porphyry dated at 26 Ma which intrude hornfelsed argillite of the Permian Hasen Creek Formation.
The mineralization is exposed in a creek bed at two locations and is elsewhere covered by overburden. It is associated with weak but pervasive hydrothermal alteration and brecciation and is surrounded by a pyrite halo and hornfels zone which has weathered to form a prominent gossan. Alteration consists of weak chloritization and silicification and local argillic and sericitic development. Grade is less than 0.2% Cu and 0.01% MoS2.
References
CANADIAN INDUSTRIAL GAS AND OIL LTD, 1967. Assessment Report *#019086 by G.J. Mcginn.
CHRISTOPHER, P.A., WHITE, W.H. AND HARAKAL, J.E., Sep/72. K-Ar dating of the Cork (Burwash Creek) Cu-Mo prospect. Canadian Journal of Earth Sciences, p. 918-921.
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 Paper 68-68, p. 73-74.
GEOLOGICAL SURVEY OF CANADA Open File 381, p. 64-65.
GEOPHOTO SERVICES LTD, 1967. Assessment Report *#019087 by R.A. Bell.
HALFERDAHL and ASSOCIATES LTD, 1979. Assessment Report *#090499 by R. Bissonnette.
HALFERDAHL and ASSOCIATES LTD, 1980. Assessment Report *#090655 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090848 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090875 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090891 by D.B. Nelson.
HALFERDAHL and ASSOCIATES LTD, 1982. Assessment Report *#091175 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1982. Assessment Report *#091397 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1983. Assessment Report *#091495 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1984. Assessment Report *#091585 by L.B. Halferdahl.
IMPERIAL OIL ENTERPRISES LTD, 1969. Assessmetn Report *#019088 by R.W. Oddy.
MINERAL INDUSTRY REPORT 1969-70, p. 101-102.
NATHAN MINERALS INC., Apr/90. Assessment Report #092950 by L.B. Halferdahl.
TATAM RESOURCES INC, 1986. Assessment Report *#091796 by L.B. Halferdahl.
TATAM RESOURCES INC, 1986. Assessment Report *#091864 by L.B. Halferdahl.
YUKON EXPLORATION 1985-86, p. 215-216.
YUKON EXPLORATION AND GEOLOGY 1981, p. 209-210.
YUKON MINING AND EXPLORATION OVERVIEW 1988, p. 34.
First staked as Betsy, Olga and Clem cl (63296) in Jul/52 by P. Versluce, H. Versluce and C. Eminger. Restaked as Cork cl (Y9756) in Jul/66 during a reconnaissance geochem program by a syndicate composed of Imperial OL, Alcon Pet L and Can Industrial G & OL. Alcon's interest was later assigned to Bow Valley Res L. Exploration consisted of preliminary mapping and limited magnetic, IP and soil sampling surveys in 1967, detailed mapping and road building in 1969 and 8 holes (805 m) in 1970.
Restaked as Granite cl (YA24066) in Apr/79 by G. Harris and as JY cl (YA51133) in Oct/80 by L.B. Halferdahl & Assoc (BUR Synd), which mapped and sampled in 1981, trenched in 1984 and transferred its property in 1985 to Tatam Res L. In 1987, the claims were transferred to Nathan Mls Inc, which performed airborne and ground VLF and magnetic surveys and soil sampling in 1988. Road improvements were done in 1989.
Capsule Geology
Disseminated pyrite, chalcopyrite and molybdenite occur in quartz veins and dry fractures cutting irregular sills or dykes of Tertiary feldspar porphyry dated at 26 Ma which intrude hornfelsed argillite of the Permian Hasen Creek Formation.
The mineralization is exposed in a creek bed at two locations and is elsewhere covered by overburden. It is associated with weak but pervasive hydrothermal alteration and brecciation and is surrounded by a pyrite halo and hornfels zone which has weathered to form a prominent gossan. Alteration consists of weak chloritization and silicification and local argillic and sericitic development. Grade is less than 0.2% Cu and 0.01% MoS2.
References
CANADIAN INDUSTRIAL GAS AND OIL LTD, 1967. Assessment Report *#019086 by G.J. Mcginn.
CHRISTOPHER, P.A., WHITE, W.H. AND HARAKAL, J.E., Sep/72. K-Ar dating of the Cork (Burwash Creek) Cu-Mo prospect. Canadian Journal of Earth Sciences, p. 918-921.
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 Paper 68-68, p. 73-74.
GEOLOGICAL SURVEY OF CANADA Open File 381, p. 64-65.
GEOPHOTO SERVICES LTD, 1967. Assessment Report *#019087 by R.A. Bell.
HALFERDAHL and ASSOCIATES LTD, 1979. Assessment Report *#090499 by R. Bissonnette.
HALFERDAHL and ASSOCIATES LTD, 1980. Assessment Report *#090655 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090848 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090875 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1981. Assessment Report *#090891 by D.B. Nelson.
HALFERDAHL and ASSOCIATES LTD, 1982. Assessment Report *#091175 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1982. Assessment Report *#091397 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1983. Assessment Report *#091495 by L.B. Halferdahl.
HALFERDAHL and ASSOCIATES LTD, 1984. Assessment Report *#091585 by L.B. Halferdahl.
IMPERIAL OIL ENTERPRISES LTD, 1969. Assessmetn Report *#019088 by R.W. Oddy.
MINERAL INDUSTRY REPORT 1969-70, p. 101-102.
NATHAN MINERALS INC., Apr/90. Assessment Report #092950 by L.B. Halferdahl.
TATAM RESOURCES INC, 1986. Assessment Report *#091796 by L.B. Halferdahl.
TATAM RESOURCES INC, 1986. Assessment Report *#091864 by L.B. Halferdahl.
YUKON EXPLORATION 1985-86, p. 215-216.
YUKON EXPLORATION AND GEOLOGY 1981, p. 209-210.
YUKON MINING AND EXPLORATION OVERVIEW 1988, p. 34.
Work History
| Date | Work Type | Comment |
|---|---|---|
| 12/31/1989 | Development, Surface | |
| 12/31/1988 | Geochemistry | |
| 12/31/1988 | Airborne Geophysics | Also VLF survey. |
| 12/31/1984 | Trenching | |
| 12/31/1981 | Geology | |
| 12/31/1981 | Trenching | |
| 12/31/1970 | Drilling | Eight holes, 805 m. |
| 12/31/1969 | Geology | |
| 12/31/1969 | Development, Surface | |
| 12/31/1967 | Geology | |
| 12/31/1967 | Geochemistry | |
| 12/31/1967 | Ground Geophysics | |
| 12/31/1966 | Geochemistry | Reconnaissance scale. |
| 12/13/1988 | Ground Geophysics | Also VLF survey. |
| 12/13/1981 | Drilling | Five holes completed, only 2 holes, 143.3 m were filed. |
| 12/13/1979 | Geochemistry | |
| 12/13/1979 | Ground Geophysics | |
| 12/13/1978 | Drilling | Cobra drill. Overburden drilling. |
| 12/13/1978 | Geochemistry |
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 095836 | 2011 | 2011 Technical Assessment Report for the Corky Property, Yukon Territory | Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology, Prospecting - Other | 3 | 146.91 |
| 095477 | 2010 | Assessment Report Describing Geochemical Sampling and Airborne Geophysical Surveys at the Corky Property | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Soil - Geochemistry | ||
| 095382 | 2010 | Assessment Report Describing Geochemical Sampling and Airborne Geophysical Surveys at the Cork Property | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Soil - Geochemistry | ||
| 091864 | 1986 | 1986 Geological, Geochemical, and Geophysical Exploration of the Bur Property, Yukon | Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies | ||
| 091495 | 1983 | 1983 Magnetometer Survey, Soil Sampling and Final Part of Heavy Mineral Sampling of the Bur Property, Yukon | Soil - Geochemistry, Magnetics - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies | ||
| 091175 | 1982 | 1982 Drilling and Initial Part of 1983 Heavy Mineral Sampling of Part of the Bur Property, Yukon | Diamond - Drilling, Heavy Mineral Concentrate - Lab Work/Physical Studies | 3 | 272.79 |
| 019088 | 1969 | Geological Report Cork Claim Group | Rock - Geochemistry, Detailed Bedrock Mapping - Geology | ||
| 019086 | 1967 | [Geophysical Surveys and Geochemistry on Cork Claims] | Soil - Geochemistry, Magnetics - Ground Geophysics | ||
| 019087 | 1967 | Report on Induced Polarization Survey of the Cork Group | IP - Ground Geophysics |
Drill core at YGS core library
| Number | Property | Year Drilled | Core Size | Photos | Data |
|---|---|---|---|---|---|
| IMP-DDH 1 (70-1) | Cork | 1970 | BQ | 0 | 2 |
| IMP-DDH-2 (70-2) | Cork | 1970 | BQ | 0 | 2 |
| IMP-DDH-3 (70-3) | Cork | 1970 | BQ | 0 | 2 |
| IMP-DDH-4 (70-4) | Cork | 1970 | NQ | 0 | 2 |
| IMP-DDH-5 (70-5) | Cork | 1970 | NQ | 12 | 2 |
| IMP-DDH-6 (70-6) | Cork | 1970 | NQ | 8 | 2 |
| DDH-10 | Cork | BTW | 0 | 0 | |
| DDH-7 | Cork | BTW | 0 | 0 | |
| DDH-8 | Cork | BTW | 0 | 0 | |
| DDH-9 | Cork | BTW | 0 | 0 |