General Information
Secondary Commodities: copper, uranium
Deposit Type(s): Iron Oxide Breccias & Veins (Wernecke Breccias)
Location(s): 65°4'42" N - -134°15'5" W
NTS Mapsheet(s): 106E01
Location Comments: .5 Kilometres
Hand Samples Available: Yes
Last Reviewed:
Capsule
Work History
Probably first staked in Oct/1910 as Irene cl (12046), although the description given by the staker is somewhat vague. Staked as Key cl (Y32539) by G. Van Bibber in Jun/69 and optioned by Bonnet Plume River ML, which carried out mapping and prospecting and drilled 8 holes (556.0 m) in 1969-70. Restaked as Key cl (Y85748) in Oct/73 by Van Bibber, who performed minor trenching from 1974 to 1976.
The property was overstaked in Nov/75 by Wernecke JV (Chevron Can L & Aquitaine) as Chalco cl (YA1431), which were abandoned in Jul/76. The showing was restaked in Oct/78 as Tag cl (YA38318) by Van Bibber and associates, who transferred 50% to S. Jones and 50% to P. Van Bibber in Dec/87.
Restaked by Pamicon Developments Ltd as part of a large block of Hoover 1-114 cl (YB28692) between July and October, 1992. Pamicon formed a joint venture with Equity Engineering Ltd and Westmin Resources Ltd and explored with geological mapping, geochemical sampling and geophysics between June and Sep/93. The Hoover 115-186 cl (YB22704) were added in Oct/93. The joint venture partners transferred 100 % interest in the Hoover claims to Westmin Resources Ltd in Jan/94. Westmin then formed a joint venture with Newmont Exploration Ltd.
Between June and Sept/94, the joint venture group drilled five holes (1178 m) on Hoover cl 1 and 3 (YB28692). In Jun/95 the joint venture group drilled 3 diamond drill holes on the Hoover claim block. All 3 holes were drilled near the showing.
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, 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 claims are underlain by Early Proterozoic limy argillite of the Quartet Group cut by Wernecke Breccia. Chalcopyrite and pyrite are weakly disseminated in the breccia and also occur with siderite gangue in lenses, blobs or streaks in peripheral fault zones and fracture stockworks. The best area of mineralization, exposed in a trench about 45 m above the valley floor,was a core of fairly massive chalcopyrite about 3 m wide within a fracture zone about 22.9 m wide that pinches out abruptly uphill and is obscured by talus downhill.
Drilling testing of the two most accessible zones showed average grades of 3.6% Cu over a true width of 3.1 m in a fault zone and 0.23% Cu over 64.9 m in the breccia. Minor brannerite is disseminated within and peripheral to the breccia.
Drill logs for 3 diamond drill holes representing 410 m were filed for the Hoover claim block.
References
BONNET PLUME RIVER MINES LTD, Oct/69. Assessment Report #060187 by J.G. Simpson and J.F. Pagella.
HEON, D., 2006. Isotope dating of lead-zinc occurrences in the Bonnet Plume area, Preliminary Report, Yukon Geological Survey, Open File 2006-16.
GEOLOGICAL SURVEY OF CANADA Paper 76-1A, p. 132.
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).
PAMICON DEVELOPMENTS LTD, Sept/94. Assessment Report #093223 by M. Jones and K. Hofmann.
PAMICON DEVELOPMENTS LTD, Nov/95. Assessment Report #093435 by M.A. Stammers.
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.
WESTMIN RESOURCES LTD, Dec/92. Assessment Report #093123 by M.A. Stammers.
WESTMIN RESOURCES LTD, Jan/94. Assessment Report #093173 by M.A. Stammers.
YUKON EXPLORATION & GEOLOGY 1995, p. 12, 16.
Probably first staked in Oct/1910 as Irene cl (12046), although the description given by the staker is somewhat vague. Staked as Key cl (Y32539) by G. Van Bibber in Jun/69 and optioned by Bonnet Plume River ML, which carried out mapping and prospecting and drilled 8 holes (556.0 m) in 1969-70. Restaked as Key cl (Y85748) in Oct/73 by Van Bibber, who performed minor trenching from 1974 to 1976.
The property was overstaked in Nov/75 by Wernecke JV (Chevron Can L & Aquitaine) as Chalco cl (YA1431), which were abandoned in Jul/76. The showing was restaked in Oct/78 as Tag cl (YA38318) by Van Bibber and associates, who transferred 50% to S. Jones and 50% to P. Van Bibber in Dec/87.
Restaked by Pamicon Developments Ltd as part of a large block of Hoover 1-114 cl (YB28692) between July and October, 1992. Pamicon formed a joint venture with Equity Engineering Ltd and Westmin Resources Ltd and explored with geological mapping, geochemical sampling and geophysics between June and Sep/93. The Hoover 115-186 cl (YB22704) were added in Oct/93. The joint venture partners transferred 100 % interest in the Hoover claims to Westmin Resources Ltd in Jan/94. Westmin then formed a joint venture with Newmont Exploration Ltd.
Between June and Sept/94, the joint venture group drilled five holes (1178 m) on Hoover cl 1 and 3 (YB28692). In Jun/95 the joint venture group drilled 3 diamond drill holes on the Hoover claim block. All 3 holes were drilled near the showing.
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, 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 claims are underlain by Early Proterozoic limy argillite of the Quartet Group cut by Wernecke Breccia. Chalcopyrite and pyrite are weakly disseminated in the breccia and also occur with siderite gangue in lenses, blobs or streaks in peripheral fault zones and fracture stockworks. The best area of mineralization, exposed in a trench about 45 m above the valley floor,was a core of fairly massive chalcopyrite about 3 m wide within a fracture zone about 22.9 m wide that pinches out abruptly uphill and is obscured by talus downhill.
Drilling testing of the two most accessible zones showed average grades of 3.6% Cu over a true width of 3.1 m in a fault zone and 0.23% Cu over 64.9 m in the breccia. Minor brannerite is disseminated within and peripheral to the breccia.
Drill logs for 3 diamond drill holes representing 410 m were filed for the Hoover claim block.
References
BONNET PLUME RIVER MINES LTD, Oct/69. Assessment Report #060187 by J.G. Simpson and J.F. Pagella.
HEON, D., 2006. Isotope dating of lead-zinc occurrences in the Bonnet Plume area, Preliminary Report, Yukon Geological Survey, Open File 2006-16.
GEOLOGICAL SURVEY OF CANADA Paper 76-1A, p. 132.
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).
PAMICON DEVELOPMENTS LTD, Sept/94. Assessment Report #093223 by M. Jones and K. Hofmann.
PAMICON DEVELOPMENTS LTD, Nov/95. Assessment Report #093435 by M.A. Stammers.
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.
WESTMIN RESOURCES LTD, Dec/92. Assessment Report #093123 by M.A. Stammers.
WESTMIN RESOURCES LTD, Jan/94. Assessment Report #093173 by M.A. Stammers.
YUKON EXPLORATION & GEOLOGY 1995, p. 12, 16.
Work History
| Date | Work Type | Comment |
|---|---|---|
| 12/31/1996 | Trenching | |
| 12/31/1995 | Drilling | Three holes, 410 m. |
| 12/31/1994 | Drilling | Five holes, 1,178 m. |
| 12/31/1993 | Geochemistry | |
| 12/31/1993 | Geology | |
| 12/31/1993 | Geochemistry | |
| 12/31/1993 | Ground Geophysics | Also magnetic survey. |
| 12/31/1975 | Trenching | |
| 12/31/1974 | Trenching | |
| 12/31/1969 | Drilling | Eight holes, 555.95 m. |
| 12/31/1969 | Geology | |
| 12/31/1969 | Other |
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 | ||
| 093435 | 1995 | 1995 Diamond Drilling Report on the Hoover Mineral Claims | Diamond - Drilling | 3 | 409.40 |
| 093223 | 1994 | [1994 Diamond Drilling Logs and Assay Results for Hoover Claims] | Diamond - Drilling, Drill Core - Geochemistry | 5 | 1124.24 |
| 093173 | 1993 | 1993 Summary Report on the Hoover 1-114 Claims | Orthophoto - Airphotography, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, IP - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 093114 | 1992 | 1992 Geochemical Report on the Hoover 1-8 Mineral Claims | Rock - Geochemistry, Bedrock Mapping - Geology | ||
| 061618 | 1969 | Bonnet Plume River Mines Ltd. Geological Report - Key Claims Property | Diamond - Drilling, Rock - Geochemistry, Bedrock Mapping - Geology | 8 | 434 |
| 060187 | 1969 | Bonnet Plume River Mines Ltd. Geological Report - Key Claims Property | Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Bedrock Mapping - Geology | 5 | 434.04 |