General Information
Secondary Commodities: cadmium, lead, silver, zinc
Aliases: Corn Creek Property
Deposit Type(s): Sediment hosted Mississippi Valley-Type Pb-Zn (MVT)
Location(s): 64.770830 N, -133.031390 W
NTS Mapsheet(s): 106C14
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Rob, etc cl (Y84848) in Aug/73 by Barrier Reef Resouces Ltd, which conducted mapping and sampling later in the year and optioned the property in Mar/74 to Consosidated Coast Silver Mines Ltd. The property was explored in 1974 with mapping, soil sampling and one x-ray hole (12 m).
The adjoining Rain cl (Y85462) to the east were staked in Sep/73 by Pine Lake Mining Company Ltd, which carried out geochem surveys and mapping in 1974, and changed its name to Marge Enterprizes Ltd in 1975. Coast Silver changed its name to New Coast Silver Mines Ltd early in 1976.
Between Sept and Oct/95 the three occurrences were restaked as Red cl 1-20 (YB65052) by J. Hajek.
Capsule Geology
The area is underlain by a generally conformably sequence of Upper Proterozoic carbonate and clastic strata that dip gently to the east. Regional Laramide deformation produced northwest-trending open folds cut by numerous parallel reverse, normal and thrust faults.
Three showings found over a length of 3700 m on Profeit Mountain consist of sphalerite and galena in quartz gangue with lesser amounts of pyrite and calcite and a trace of tetrahedrite. The mineralization fills vugs and veins and forms the matrix of fault breccia in grey Upper Proterozoic Profeit Dolostone (Windermere Supergroup) that strikes north and dips 25° east.
Showing No. 1 (on claim TG3) consists of sphalerite and galena in veins from 3 cm to 1.5 m wide and up to 100 m long. A sample across the best portion of a 1.5 m wide vein assayed 600.0 g/t Ag, 19.5% Pb, 41.8% Zn and 0.09% Cd.
Showing No. 2 (on claim John 7) consists of mineralized fault breccia and discontinuous veining within a 120 by 120 m area. A sample across the best part of a 3 m wide breccia zone assayed 78.9 g/t Ag, 2.6% Pb, 30.7% Zn and 0.06% Cd.
Showing No. 3 (on the Barb 2 claim) is a 3 m wide vein striking 295° and dipping 75° south that can be traced for a length of 60 m. A chip sample across the vein assayed 34.3 g/t Ag, 1.4% Pb, 8.1% Zn and 0.02% Cd. The drill hole tested Showing 3 and returned only traces of mineralization. On the Barb 2 claim, highly oxidized brecciated dolostone fragments are rimmed by cm-thick fine-grained pyrite +/- galena(?), dolomite and trace sphalerite rims, and replaced by sulphide pods (Heon, 2006).
Pine Lake outlined a zinc anomaly 305 by 1828 m and a lead-zinc anomaly 152 square metres.
References
CONSOLIDATED COAST SILVER MINES LTD, Aug/74. Assessment Report #091700 by D.W. Tully.
GEORGE CROSS NEWSLETTER, 4 Dec/73; 25 Feb/74; 31 Jul/74.
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).
HEON, D., 2006. Isotope dating of lead-zinc occurrences in the Bonnet Plume area, Preliminary Report, Yukon Geological Survey, Open File 2006-16.
MINERAL INDUSTRY REPORT 1973, p. 26; 1974, p. 59.
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.
Staked as Rob, etc cl (Y84848) in Aug/73 by Barrier Reef Resouces Ltd, which conducted mapping and sampling later in the year and optioned the property in Mar/74 to Consosidated Coast Silver Mines Ltd. The property was explored in 1974 with mapping, soil sampling and one x-ray hole (12 m).
The adjoining Rain cl (Y85462) to the east were staked in Sep/73 by Pine Lake Mining Company Ltd, which carried out geochem surveys and mapping in 1974, and changed its name to Marge Enterprizes Ltd in 1975. Coast Silver changed its name to New Coast Silver Mines Ltd early in 1976.
Between Sept and Oct/95 the three occurrences were restaked as Red cl 1-20 (YB65052) by J. Hajek.
Capsule Geology
The area is underlain by a generally conformably sequence of Upper Proterozoic carbonate and clastic strata that dip gently to the east. Regional Laramide deformation produced northwest-trending open folds cut by numerous parallel reverse, normal and thrust faults.
Three showings found over a length of 3700 m on Profeit Mountain consist of sphalerite and galena in quartz gangue with lesser amounts of pyrite and calcite and a trace of tetrahedrite. The mineralization fills vugs and veins and forms the matrix of fault breccia in grey Upper Proterozoic Profeit Dolostone (Windermere Supergroup) that strikes north and dips 25° east.
Showing No. 1 (on claim TG3) consists of sphalerite and galena in veins from 3 cm to 1.5 m wide and up to 100 m long. A sample across the best portion of a 1.5 m wide vein assayed 600.0 g/t Ag, 19.5% Pb, 41.8% Zn and 0.09% Cd.
Showing No. 2 (on claim John 7) consists of mineralized fault breccia and discontinuous veining within a 120 by 120 m area. A sample across the best part of a 3 m wide breccia zone assayed 78.9 g/t Ag, 2.6% Pb, 30.7% Zn and 0.06% Cd.
Showing No. 3 (on the Barb 2 claim) is a 3 m wide vein striking 295° and dipping 75° south that can be traced for a length of 60 m. A chip sample across the vein assayed 34.3 g/t Ag, 1.4% Pb, 8.1% Zn and 0.02% Cd. The drill hole tested Showing 3 and returned only traces of mineralization. On the Barb 2 claim, highly oxidized brecciated dolostone fragments are rimmed by cm-thick fine-grained pyrite +/- galena(?), dolomite and trace sphalerite rims, and replaced by sulphide pods (Heon, 2006).
Pine Lake outlined a zinc anomaly 305 by 1828 m and a lead-zinc anomaly 152 square metres.
References
CONSOLIDATED COAST SILVER MINES LTD, Aug/74. Assessment Report #091700 by D.W. Tully.
GEORGE CROSS NEWSLETTER, 4 Dec/73; 25 Feb/74; 31 Jul/74.
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).
HEON, D., 2006. Isotope dating of lead-zinc occurrences in the Bonnet Plume area, Preliminary Report, Yukon Geological Survey, Open File 2006-16.
MINERAL INDUSTRY REPORT 1973, p. 26; 1974, p. 59.
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.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1974 | Drilling: Diamond | Number of holes drilled: 1 Amount of work done: 12 METRES |
| 1974 | Geochemistry: Soil | |
| 1974 | Geology: Bedrock Mapping | |
| 1973 | Geology: Bedrock Mapping | |
| 1973 | Other | |
| 1973 | Other |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - platformal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup: Windermere
Group/Suite: Hay Creek
Formation: Profeit
Member:
Terrane: Laurentia
Period Max: Ediacaran
Age Max: 635 MA
Period Min: Ediacaran
Age Min: 542 MA
Rock Major: dolostone
Rock Minor: siltstone/sandstone/grit
Reference: Thorkelson & Wallace (1998) - YGS GM 1998-11
Geological Unit (1M): uPHC
Geological Unit (250K): uPHC2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 090054 | 1975 | Mount Profeit Pb-Zn Property (Doc 1-150 claims) | Orthophoto - Airphotography, Rock - Geochemistry, Detailed 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 |
