General Information
Secondary Commodities: uranium, copper
Aliases: Vulcan
Deposit Type(s): Iron Oxide Breccias & Veins (Wernecke Breccias)
Location(s): 64.878890 N, -133.354440 W
NTS Mapsheet(s): 106C14
Location Comments: .5 Kilometres
Hand Samples Available at YGS: Yes
Capsule
Work History
Staked as Lad cl (Y57435) in Mar-Aug/72 by Cypress Resources Ltd staked as Elk cl (YA14479) in Nov/76 by Mountaineer Mines Ltd and optioned to Pan Ocean Oil Ltd, which explored with mapping and geochem surveys in 1977 and 1978, radiometric and VLF-EM surveys in 1979, and hand trenching in 1980. Mountaineer changed its name to Canadian Mineral Corporation in 1979 and Pan Ocean's interest was transferred to Aberford Resources Ltd in 1982.
In Oct/94 D & J Hajek restaked the showing within the Key cl 1-38 (YB43466). The Hajeks also staked the Bloom cl 1-38 (YB43576) to the northwest at the same time. In Feb/95 the Hajeks transferred the Bloom and Key claims to West Lake Ltd which carried out a trenching and prospecting program later in the summer.
Capsule Geology
The region is underlain by a metamorphosed and altered sequence of Early Proterozoic Wernecke Supergroup clastic and carbonate rocks (Fairchild Lake Group, Quartet Group and Gillespie Lake Group, from oldest to youngest) that are intruded by Early to Middle Proterozoic mafic sills and dykes, and cut by Middle Proterozoic Wernecke Breccia. To the east and south, Wernecke Supergroup rocks are unconformably overlain by Middle Proterozoic Pinguicula Group rocks. According to Thorkelson (2000), Wernecke Breccia development is best modeled as a set of hydrothermal and/or phreatic breccias; brecciation being caused by explosive expanson of volatile-rich fluids. Hunt (2005) attributed Wernecke Breccia formation to periodic over-pressuring of dominantly basinal fluids, which lead to repeated brecciation of host strata and mineral precipitation.
The occurrence is underlain by Fairchild Lake Group and Quartet Group argillite and dolostone. Narrow lenses and disseminations of chalcopyrite occur in at least four showings within the sedimentary units. Disseminated chalcopyrite and brannerite occur near the core of a 50 by 15 m Wernecke Breccia body.
A chip sample taken across a 1 by 0.6 m area of high radioactivity readings assayed 0.38% Cu and 0.012% U3O8.
References
CYPRESS RESOURCES LTD, Apr/72. Prospectus Report by R.S. Adamson.
GORDEY, S.P. AND MAKEPEACE, A.J., 2003. Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open File 1749 and Yukon Geological Survey, Open File 2003-9 (D).
HUNT, J., 2005. The geology and genesis of iron oxide-copper-gold mineralisation associated with Wernecke Breccia, Yukon Canada, PhD thesis, James Cook University, Australia, 2 volumes, 120 p.
MINERAL INDUSTRY REPORT 1977, p. 41; 1978, p. 13.
MOUNTAINEER MINES LTD, Jan/79. Assessment Report #090424 by C.K. Ikona and M.A. Stammers.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, 1981. Assessment Report #090819 by D.L. Dick and D.B. Harmeson.
PAMICON DEVELOPMENTS LTD, 1981. Assessment Report #090585 by C.K. Ikona and D.A. Yeager.
PAN OCEAN OIL LTD, 1977. Assessment Report #090283 by C.K. Ikona and D.A. Yeager.
THORKELSON, D.J. and WALLACE, C.A., 1995. Geology and mineral occurrences of the Dolores Creek map area (106C/14), Wernecke Mountains, northeastern Yukon. In: Yukon Exploration and Geology, 1994. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 19-30.
THORKELSON, D.J. AND WALLACE, C.A., 2000. Geology and mineral occurrences of the Slats Creek, Fairchild Lake and "Dolores Creek" areas, Wernecke Mountains, Yukon (106D/16, 106C/13, 106C/14). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Bulletin 10, 73 p.
WEST LAKE LTD, Mar/96. Assessment Report #093510 by J.H. Hajek.
YUKON EXPLORATION AND GEOLOGY 1981, p. 186.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 223-224.
Staked as Lad cl (Y57435) in Mar-Aug/72 by Cypress Resources Ltd staked as Elk cl (YA14479) in Nov/76 by Mountaineer Mines Ltd and optioned to Pan Ocean Oil Ltd, which explored with mapping and geochem surveys in 1977 and 1978, radiometric and VLF-EM surveys in 1979, and hand trenching in 1980. Mountaineer changed its name to Canadian Mineral Corporation in 1979 and Pan Ocean's interest was transferred to Aberford Resources Ltd in 1982.
In Oct/94 D & J Hajek restaked the showing within the Key cl 1-38 (YB43466). The Hajeks also staked the Bloom cl 1-38 (YB43576) to the northwest at the same time. In Feb/95 the Hajeks transferred the Bloom and Key claims to West Lake Ltd which carried out a trenching and prospecting program later in the summer.
Capsule Geology
The region is underlain by a metamorphosed and altered sequence of Early Proterozoic Wernecke Supergroup clastic and carbonate rocks (Fairchild Lake Group, Quartet Group and Gillespie Lake Group, from oldest to youngest) that are intruded by Early to Middle Proterozoic mafic sills and dykes, and cut by Middle Proterozoic Wernecke Breccia. To the east and south, Wernecke Supergroup rocks are unconformably overlain by Middle Proterozoic Pinguicula Group rocks. According to Thorkelson (2000), Wernecke Breccia development is best modeled as a set of hydrothermal and/or phreatic breccias; brecciation being caused by explosive expanson of volatile-rich fluids. Hunt (2005) attributed Wernecke Breccia formation to periodic over-pressuring of dominantly basinal fluids, which lead to repeated brecciation of host strata and mineral precipitation.
The occurrence is underlain by Fairchild Lake Group and Quartet Group argillite and dolostone. Narrow lenses and disseminations of chalcopyrite occur in at least four showings within the sedimentary units. Disseminated chalcopyrite and brannerite occur near the core of a 50 by 15 m Wernecke Breccia body.
A chip sample taken across a 1 by 0.6 m area of high radioactivity readings assayed 0.38% Cu and 0.012% U3O8.
References
CYPRESS RESOURCES LTD, Apr/72. Prospectus Report by R.S. Adamson.
GORDEY, S.P. AND MAKEPEACE, A.J., 2003. Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open File 1749 and Yukon Geological Survey, Open File 2003-9 (D).
HUNT, J., 2005. The geology and genesis of iron oxide-copper-gold mineralisation associated with Wernecke Breccia, Yukon Canada, PhD thesis, James Cook University, Australia, 2 volumes, 120 p.
MINERAL INDUSTRY REPORT 1977, p. 41; 1978, p. 13.
MOUNTAINEER MINES LTD, Jan/79. Assessment Report #090424 by C.K. Ikona and M.A. Stammers.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, 1981. Assessment Report #090819 by D.L. Dick and D.B. Harmeson.
PAMICON DEVELOPMENTS LTD, 1981. Assessment Report #090585 by C.K. Ikona and D.A. Yeager.
PAN OCEAN OIL LTD, 1977. Assessment Report #090283 by C.K. Ikona and D.A. Yeager.
THORKELSON, D.J. and WALLACE, C.A., 1995. Geology and mineral occurrences of the Dolores Creek map area (106C/14), Wernecke Mountains, northeastern Yukon. In: Yukon Exploration and Geology, 1994. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 19-30.
THORKELSON, D.J. AND WALLACE, C.A., 2000. Geology and mineral occurrences of the Slats Creek, Fairchild Lake and "Dolores Creek" areas, Wernecke Mountains, Yukon (106D/16, 106C/13, 106C/14). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Bulletin 10, 73 p.
WEST LAKE LTD, Mar/96. Assessment Report #093510 by J.H. Hajek.
YUKON EXPLORATION AND GEOLOGY 1981, p. 186.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 223-224.
Location Map
Last Updated: Aug 30, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1995 | Other: Prospecting | |
| 1995 | Trenching: Hand | |
| 1980 | Geology: Bedrock Mapping | |
| 1980 | Trenching: Hand | |
| 1979 | Ground Geophysics: Radiometric Survey | Also VLF-EM survey. |
| 1978 | Geochemistry: Soil | |
| 1978 | Geology: Bedrock Mapping | |
| 1977 | Geochemistry: Silt | |
| 1977 | Geochemistry: Water | |
| 1977 | Geology: Bedrock Mapping | |
| 1976 | Geology: Bedrock Mapping | 1:50 000 scale. |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - platformal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Wernecke breccia
Formation:
Member:
Terrane: Laurentia
Period Max: Calymmian
Age Max: 1600 MA
Period Min: Calymmian
Age Min: 1590 MA
Rock Major: breccia
Rock Minor:
Reference: Thorkelson & Wallace (1998) - YGS GM 1998-11
Geological Unit (1M): mPW
Geological Unit (250K): mPW
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 095634 | 2007 | YUP February Internal Technical Report, Season 2007 Describing Mapping, Prospecting and Diamond Drilling at the Lumina Property | Gamma-Ray Spectrometry - Airborne Geophysics, Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Detailed Bedrock Mapping - Geology, Regional Bedrock Mapping - Geology, Scintillometer - Ground Geophysics, Prospecting - Other | 15 | 4367.20 |
| 095646 | 2007 | 2007 Geological, Geochemical and Geophysical Report on the Werneckes Project | Diamond - Drilling, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Regional Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Scintillometer - Ground Geophysics, Prospecting - Other, Backhoe - Trenching, Hand - Trenching, Handblast - Trenching | 28 | 6537.96 |
| 094953 | 2006 | Assessment Report Describing Airborne Geophysics, Mapping, Prospecting and Diamond Drilling | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Diamond - Drilling, Drill Core - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | 22 | 2602.89 |
| 094956 | 2006 | 2006 Geological, Geochemical and Geophysical Report on the Werneckes Project | Reverse Circulation - Airborne Geophysics, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Scintillometer - Ground Geophysics, Prospecting - Other | ||
| 093510 | 1995 | 1995 Assessment Report Glacial Lake Properties | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Line Cutting - Other, Prospecting - Other, Backhoe - Trenching | ||
| 090819 | 1980 | Assessment Report on the Elk 1 - 90 Mineral Claims | Rock - Geochemistry, Prospecting - Other, Hand - Trenching | ||
| 090424 | 1979 | Mountaineer Mines Ltd. - Pan Ocean Oil Ltd. Joint Venture | Soil - Geochemistry, Water - Geochemistry, Prospecting - Other | ||
| 090585 | 1979 | Mountaineer Mines Ltd- Pan Ocean Oil Ltd. | EM - Ground Geophysics, Scintillometer - Ground Geophysics | ||
| 090283 | 1977 | Geological and Geochemical Report on the Elk 1-90 Mineral Claims | Water - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 061207 | 1974 | Report on Geological and Geochemical Field Work 1974 EG Claim Group | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other |
