General Information
Secondary Commodities: zinc, lead, silver
Aliases: Val
Deposit Type(s): Manto Polymetallic Ag-Pb-Zn, Sediment hosted Mississippi Valley-Type Pb-Zn (MVT)
Location(s): 64.261630 N, -133.695170 W
NTS Mapsheet(s): 106C05
Location Comments: Located based on drillhole map of AR 095720
Hand Samples Available at YGS: No
Capsule
Work History
The claim block (Val cl 1-318, YA30884) covering the occurrence was staked in July and Aug 1978 by Prism Joint Venture (Asamera Oil Corporation, Chieftain Development Company Ltd, Prism Resources Ltd, Siebens Oil and Gas Ltd and E & B Exploration Ltd). In 1979, Dome Petroleum Ltd replaced Siebens in the joint venture. Dome dropped its interest and E & B's was transferred to Imperial Metals Ltd in 1983. In 1985, Prism changed its name to International Prism Exploration Ltd. The occurrence has been explored with prospecting, soil sampling, trenching, IP and self-potential surveys, mapping, airborne magnetics and diamond drilling. A regional airborne geophysical survey was conducted over the claim block in 2001 (no report available). Manson Creek Resources optioned the Val claims in 1998. Archer Cathro and Associates Ltd. re-staked the area as the Rusty series claims (e.g., Rusty 241, Y33481) in 2010, covering the occurrence.
Capsule Geology
The occurrence is located at the southern edge of the Mackenzie Platform, a predominantly shallow water carbonate and clastic sequence that formed on the western margin of the North American craton during Lower Proterozoic through Paleozoic times. The regional geology consists of Upper Proterozoic Rapitan(?) Group mudstones overlain by Upper Proterozoic Profeit Formation dolostones and Upper Proterozoic Nadaleen Formation silty limestone. Over these units are minor clastic and carbonate rocks of the Neoproterozoic to Lower Cambrian Hyland Group. Lower Paleozoic platform carbonates unconformably overlie these units.
The Big Red occurrence is hosted in grey dolomite of the Profeit Formation. Mineralization encountered in drilling in 1979 (AR 090615) at the occurrence ranged from minor fracture filling to massive mineralization in brecciated grey dolomite and intermittent sections of white, recrystallized sparry dolomite. The best two mineralized intervals in DDH 79-14 were at 24.4 m and 51.2 m depth. The upper interval consists of nearly massive reddish-brown sphalerite with disseminated galena, averaging 6.6% Pb, 49.9% Zn and 158 g/t Ag over 4.1 m. The lower interval was massive coarse-grained galena, sphalerite and tetrahedrite averaging 53.22% Pb, 10.9% Zn and 4377 g/t Ag over 3.8 m, including 1.5 m of 7390 g/t Ag.
The 1998 Induced Polarization survey was centred on the Big Red Zone (BRZ). The total chargeability produced a bulls-eye anomaly over the BRZ, indicating that BRZ is a pipelike vertical structure with limited lateral extent. Landsat imagery acquired in 1998 and processed to enhance areas of alteration highlighted the BRZ, but was of limited usefulness in identifying unknown targets.
The claim block (Val cl 1-318, YA30884) covering the occurrence was staked in July and Aug 1978 by Prism Joint Venture (Asamera Oil Corporation, Chieftain Development Company Ltd, Prism Resources Ltd, Siebens Oil and Gas Ltd and E & B Exploration Ltd). In 1979, Dome Petroleum Ltd replaced Siebens in the joint venture. Dome dropped its interest and E & B's was transferred to Imperial Metals Ltd in 1983. In 1985, Prism changed its name to International Prism Exploration Ltd. The occurrence has been explored with prospecting, soil sampling, trenching, IP and self-potential surveys, mapping, airborne magnetics and diamond drilling. A regional airborne geophysical survey was conducted over the claim block in 2001 (no report available). Manson Creek Resources optioned the Val claims in 1998. Archer Cathro and Associates Ltd. re-staked the area as the Rusty series claims (e.g., Rusty 241, Y33481) in 2010, covering the occurrence.
Capsule Geology
The occurrence is located at the southern edge of the Mackenzie Platform, a predominantly shallow water carbonate and clastic sequence that formed on the western margin of the North American craton during Lower Proterozoic through Paleozoic times. The regional geology consists of Upper Proterozoic Rapitan(?) Group mudstones overlain by Upper Proterozoic Profeit Formation dolostones and Upper Proterozoic Nadaleen Formation silty limestone. Over these units are minor clastic and carbonate rocks of the Neoproterozoic to Lower Cambrian Hyland Group. Lower Paleozoic platform carbonates unconformably overlie these units.
The Big Red occurrence is hosted in grey dolomite of the Profeit Formation. Mineralization encountered in drilling in 1979 (AR 090615) at the occurrence ranged from minor fracture filling to massive mineralization in brecciated grey dolomite and intermittent sections of white, recrystallized sparry dolomite. The best two mineralized intervals in DDH 79-14 were at 24.4 m and 51.2 m depth. The upper interval consists of nearly massive reddish-brown sphalerite with disseminated galena, averaging 6.6% Pb, 49.9% Zn and 158 g/t Ag over 4.1 m. The lower interval was massive coarse-grained galena, sphalerite and tetrahedrite averaging 53.22% Pb, 10.9% Zn and 4377 g/t Ag over 3.8 m, including 1.5 m of 7390 g/t Ag.
The 1998 Induced Polarization survey was centred on the Big Red Zone (BRZ). The total chargeability produced a bulls-eye anomaly over the BRZ, indicating that BRZ is a pipelike vertical structure with limited lateral extent. Landsat imagery acquired in 1998 and processed to enhance areas of alteration highlighted the BRZ, but was of limited usefulness in identifying unknown targets.
Location Map
Last Updated: Mar 10, 2020
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2001 | Airborne Geophysics: Electromagnetic | Also magnetics, as part of a property-wide survey |
| 1999 | Drilling: Diamond | five holes, 767.5 m |
| 1998 | Ground Geophysics: IP | |
| 1998 | Remote Sensing: Landsat | |
| 1979 | Drilling: Diamond | 14 holes, 1483.5 m |
| 1979 | Geochemistry: Rock | |
| 1979 | Geology | |
| 1978 | Geochemistry: Rock | |
| 1978 | Geochemistry: Soil | |
| 1978 | Geology | |
| 1978 | Ground Geophysics: IP | |
| 1978 | Trenching |
Regional Geology - Terrane
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Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096253 | 2011 | Assessment Report Describing 2011 Drilling and Geochemical Sampling at the Rusty Property | Diamond - Drilling, Soil - Geochemistry | 9 | 1340 |
| 095720 | 2010 | Assessment Report Describing Geological Mapping, Prospecting and Geochemical Sampling at the Rusty Property | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 093968 | 1999 | Geochemical, Geological and Geophysical Assessment, Report for the Val,Vera,Rusty,KLA,Nad and Craig Claims | Orthophoto - Airphotography, Silt - Geochemistry, Bedrock Mapping - Geology, Detailed Bedrock Mapping - Geology, Prospecting - Other, Research/Summarize - Pre-existing Data | ||
| 094073 | 1999 | Geophysical, Geochemical and Diamond Drilling Assessment Report for the Val, Vera and Rusty Claims | Diamond - Drilling, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, IP - Ground Geophysics, Line Cutting - Other | 7 | 986.80 |
| 092725 | 1988 | A Preliminary Diamond Drilling and Trenching Report on the Val-Vera Quartz Claims | All Weather Road - Development, Surface, Diamond - Drilling, Drill Core - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Prospecting - Other, Backhoe - Trenching | 12 | 1479.20 |
| 062208 | 1985 | Summary Report on the Val-Vera Property | Research/Summarize - Pre-existing Data | ||
| 062185 | 1983 | Summary Report on the Val-Vera Property | Research/Summarize - Pre-existing Data | ||
| 090721 | 1980 | Assessment Report Diamond Drilling Val 1-318 Claims | Diamond - Drilling, Drill Core - Geochemistry | 9 | 1304 |
| 090615 | 1979 | Assessment Report Geochemistry and Drilling Val 1 - 318 Claims | Diamond - Drilling, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Backhoe - Trenching | 39 | 3158 |
| 090511 | 1978 | Assessment Report on Geology, Geochemistry and Drilling at Val 1-318 Claims | Diamond - Drilling, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, IP - Ground Geophysics, Self-Potential - Ground Geophysics, Line Cutting - Other, Property Evaluation - Other, Prospecting - Other, Hand - Trenching | 14 | 814 |
Related References
| Number | Title | Page(s) | Document Type |
|---|
| Citations |
|---|
| James, D.H., Apr/1980. Silver-lead-zinc at Kathleen Lakes. Canadian Mining Journal, p. 49-54. |
| Yukon Digital Geology <accessed July 30, 2019> |
