General Information
Secondary Commodities: copper, gold
Deposit Type(s): Iron Oxide Breccias & Veins (Wernecke Breccias)
Location(s): 65.009720 N, -134.311110 W
NTS Mapsheet(s): 106E01
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked in Sep/76 by Mountaineer ML as Break cl (YA7104), which were prospected and optioned to Pan Ocean OL later in the year. The Polaris & Orion cl (YA1673) were staked to the northeast in Feb/76 by Nuspar Res L. Both claim blocks were explored with mapping, radiometric and geochem surveys in 1977 and 1978 and mapping and hand trenching in 1980. Mountaineer changed its name to Can Ml Corp in 1979. Pan Ocean's interest were transferred to Aberford Res Ltd in 1981.
Westmin Resources Ltd. staked Wolv cl 1-64 (YB44670) 2.5 km to the northeast between May and Jul/95. In Jun/95 one diamond drill hole ( 271 m) was drilled on claim 19 located 2.5 km northeast of the prospect.
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 west, Cambrian carbonates unconformably overlie the Wernecke Supergroup. 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 claims cover a breccia body which cuts Early Proterozoic Quartet Group argillite and Fairchild Lake Group siltstone, quartzite and dolomite. Chalcopyrite and pyrite occur as disseminations in a quartzite horizon, in the quartz-carbonate veins and locally in massive pods within the Fairchild Lake Group on the Break claim. Two areas of mineralization - the West and East showings - were sampled and returned 0.9% Cu over 1.5 m and 1.8% Cu over 2.3 m, respectively. Some trench samples produced slightly elevated gold assays. Weak uranium geochemical anomalies were reported on the Polaris and Orion groups but no radiometric anomalies or uranium mineralization were discovered.
References
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. 47-48; 1978, p. 17.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, Jan/79. Assessment Report #090423 by C.K. Ikona, D.A. Yeager and R.B. Yorston.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, Apr/81. Assessment Report *#090820 by D.L. Dick and D.B. Harmeson.
NEWMONT EXPLORATION LTD, Nov/95. Assessment Report *#093362 by M.A. Stammers.
NUSPAR RESOURCES LTD, Dec/76. Assessment Report #090302 by C.K. Ikona and R.B. Yorston.
NUSPAR RESOURCES LTD, 1976. Assessment Report *#090198 by C.K. Ikona and D.A. Yeager.
NUSPAR RESOURCES LTD, 1976. Assessment Report *#090201 by C.K. Ikona and D.A. Yeager.
PAMICON DEVELOPMENTS LTD, 1980. Assessment Report #090588 by C.K. Ikona and D.A. Yeager.
PAMICON DEVELOPMENTS LTD, Nov/95. Assessment Report #090362 by M.A. Stammers.
PAN OCEAN OIL LTD, Dec/77. Assessment Report #090290 by C.K. Ikona and D.A. Yeager.
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.
YUKON EXPLORATION AND GEOLOGY 1981, p.197
YUKON EXPLORATION & GEOLOGY 1995, p. 12, 16.
Staked in Sep/76 by Mountaineer ML as Break cl (YA7104), which were prospected and optioned to Pan Ocean OL later in the year. The Polaris & Orion cl (YA1673) were staked to the northeast in Feb/76 by Nuspar Res L. Both claim blocks were explored with mapping, radiometric and geochem surveys in 1977 and 1978 and mapping and hand trenching in 1980. Mountaineer changed its name to Can Ml Corp in 1979. Pan Ocean's interest were transferred to Aberford Res Ltd in 1981.
Westmin Resources Ltd. staked Wolv cl 1-64 (YB44670) 2.5 km to the northeast between May and Jul/95. In Jun/95 one diamond drill hole ( 271 m) was drilled on claim 19 located 2.5 km northeast of the prospect.
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 west, Cambrian carbonates unconformably overlie the Wernecke Supergroup. 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 claims cover a breccia body which cuts Early Proterozoic Quartet Group argillite and Fairchild Lake Group siltstone, quartzite and dolomite. Chalcopyrite and pyrite occur as disseminations in a quartzite horizon, in the quartz-carbonate veins and locally in massive pods within the Fairchild Lake Group on the Break claim. Two areas of mineralization - the West and East showings - were sampled and returned 0.9% Cu over 1.5 m and 1.8% Cu over 2.3 m, respectively. Some trench samples produced slightly elevated gold assays. Weak uranium geochemical anomalies were reported on the Polaris and Orion groups but no radiometric anomalies or uranium mineralization were discovered.
References
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. 47-48; 1978, p. 17.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, Jan/79. Assessment Report #090423 by C.K. Ikona, D.A. Yeager and R.B. Yorston.
MOUNTAINEER MINES LTD AND PAN OCEAN OIL LTD, Apr/81. Assessment Report *#090820 by D.L. Dick and D.B. Harmeson.
NEWMONT EXPLORATION LTD, Nov/95. Assessment Report *#093362 by M.A. Stammers.
NUSPAR RESOURCES LTD, Dec/76. Assessment Report #090302 by C.K. Ikona and R.B. Yorston.
NUSPAR RESOURCES LTD, 1976. Assessment Report *#090198 by C.K. Ikona and D.A. Yeager.
NUSPAR RESOURCES LTD, 1976. Assessment Report *#090201 by C.K. Ikona and D.A. Yeager.
PAMICON DEVELOPMENTS LTD, 1980. Assessment Report #090588 by C.K. Ikona and D.A. Yeager.
PAMICON DEVELOPMENTS LTD, Nov/95. Assessment Report #090362 by M.A. Stammers.
PAN OCEAN OIL LTD, Dec/77. Assessment Report #090290 by C.K. Ikona and D.A. Yeager.
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.
YUKON EXPLORATION AND GEOLOGY 1981, p.197
YUKON EXPLORATION & GEOLOGY 1995, p. 12, 16.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1995 | Drilling: Diamond | Number of holes drilled: 1 Amount of work done: 271 METRES |
| 1980 | Geology: Bedrock Mapping | |
| 1980 | Trenching: Hand | |
| 1980 | Trenching: Mechanical | |
| 1978 | Geochemistry: Water | |
| 1978 | Geology: Bedrock Mapping | |
| 1978 | Other | |
| 1978 | Other | |
| 1977 | Geochemistry: Rock | |
| 1977 | Geology: Bedrock Mapping | |
| 1977 | Other | |
| 1977 | Other | |
| 1976 | Other |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - platformal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup: Wernecke
Group/Suite: Fairchild Lake
Formation:
Member:
Terrane: Laurentia
Period Max: Statherian
Age Max: 1800 MA
Period Min: Statherian
Age Min: 1600 MA
Rock Major: siltstone, shale, silty dolostone
Rock Minor: phyllite, schist
Reference: Thorkelson et al. (2002) - YGS GM 2002-2
Geological Unit (1M): lPFL
Geological Unit (250K): lPFL2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 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 |
| 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 | ||
| 090588 | 1980 | Preliminary Geological Report on the Rad 1-24, Break 1-32 Mineral Claims | Rock - Geochemistry, Water - Geochemistry, Bedrock Mapping - Geology | ||
| 090820 | 1980 | Assessment Report on the Rad 1-24 and Break 1-32 Mineral Claim Group | Rock - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Hand - Trenching, Handblast - Trenching, Mechanical - Trenching | ||
| 090423 | 1979 | Preliminary Geological Report on the Rad 1-24, Break 1-32 Mineral Claims | Rock - Geochemistry, Water - Geochemistry, Bedrock Mapping - Geology | ||
| 090290 | 1977 | Preliminary Geological Report on the Break 1-32 Mineral Claims | Rock - Geochemistry, Water - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 090287 | 1977 | Preliminary Geological Report on the Rad 1-24 Mineral Claims | Rock - Geochemistry, Water - Geochemistry, Bedrock Mapping - Geology |
