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Occurrence Details


Occurrence Number
106D 114
Occurrence Name
Cougar
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Secondary Commodities: gold, silver, lead, zinc
Aliases: Rau, Rackla
Deposit Type(s): Manto Polymetallic Ag-Pb-Zn
Location(s): 64.216680 N, -134.462630 W
NTS Mapsheet(s): 106D01
Location Comments: Coordinates supplied by ATAC 2019
Hand Samples Available at YGS: No

Capsule

Work History
 
Staked within R cl 1-1295 (YC68334) in Jul/2008 by ATAC Resources Ltd. The claims are part of the larger Rackla Gold Project and were staked following the discovery of gold mineralization in 2008 at the company’s Tiger occurrence (Minfile Occurrence #106D 098) located approximately 5 km to the southeast. Following staking the company carried out a helicopter-borne magnetic and variable-time domain electromagnetic survey over the newly staked area.
 
In 2009 ATAC Resources carried out grid and contour soil sampling followed by prospecting and rock sampling of anomalous areas including the Cougar occurrence. In 2010 ATAC Resources carried out a large exploration program on the Rau portion of its Rackla Gold property. The company completed air-borne ZTEM and aeromagnetic geophysical surveys over the majority of the Rau trend as well as soil sampling over the Cougar occurrence.
 
In 2012, the company completed soil sampling and in 2013 completed further soil sampling in the area. Follow up rock geochemistry and prospecting was completed in 2015.
 
Geology
 
Regionally, the occurrence lies between the Dawson and Kathleen Lakes thrusts which form part of a band of regional-scale thrust faults that imbricate rocks of Mackenzie Platform and Selwyn Basin. The occurrence area lies on the western margin of ancestral North America and is underlain primarily by carbonate platform rocks of Mackenzie Platform which are in turn overlain by Paleozoic Selwyn Basin clastic rocks. The rock package formed a fault-bounded package which was thrust northeasterly during Jurassic to Cretaceous times by the Dawson and Kathleen Lakes thrust faults onto predominantly Proterozoic rocks. Following faulting, Late Cretaceous (94-90 million years), intermediate to felsic plutons of the Tombstone Suite were emplaced. A second intrusive event around 65 million years saw the emplacement of felsic intrusives assigned to the McQuesten Suite.
 
The Cougar showing lies on the northwest side of monument Hill. Contour sampling carried out in 2009 outlined a 250 m wide area containing strong gold (up to 123 ppm) and moderately anomalous bismuth (up to 123 ppm) values that correlate well with gold.  Prospecting carried out in 2010 located cobbles of dense rusty limonite with rare blebby bismuthinite and galena in quartz in a talus field comprised of mostly limestone flanked by volcaniclastic material to the east and west. Several samples collected from the area returned elevated gold (1.57 g/t and 3.13 g/t) values. Other samples returned bismuth values greater than 1%. Arsenic values throughout the showing are elevated and include peak values of 1.2 % and 2.1 %.  Other samples collected from the showing returned elevated lead values. One sample which returned 1.57 g/t gold also returned 19.4 % lead.

Location Map

Last Updated: Jun 24, 2022

Work History

Year Work Type Comment
2019 Geochemistry: Rock
2019 Other: Prospecting
2013 Geochemistry: Rock
2010 Geochemistry: Rock
2009 Geochemistry: Rock
2008 Airborne Geophysics: Magnetic
2008 Airborne Geophysics: VTEM

Regional Geology - Terrane

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Regional Geology - Bedrock

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Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096936 2015 Assessment Report Describing Geochemical Sampling, Prospecting and Diamond Drilling at the Rau Trend - Rackla Gold Property Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry 20 1814.23
096939 2015 Technical Report and Preliminary Economic Assessment for the Tiger Deposit, Rackla Gold Project VTEM - Airborne Geophysics, ZTEM - Airborne Geophysics, Mill/Concentrator Construction - Development, Surface, Tailings Pond - Development, Surface, Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry, Gravity Survey - Ground Geophysics, IP - Ground Geophysics, Resistivity - Ground Geophysics, Metallurgical Tests - Lab Work/Physical Studies, Data Compilation - Pre-existing Data, Data Compilation - Pre-existing Data, Environmental Assessment/Impact - Studies, Preliminary Economic Assessment - Studies, Resource Estimate - Studies 150 26846.60
096732 2014 Assessment Report Describing Metallurgical Test Pits, Metallurgical Auger Drilling, Geotechnical Auger Drilling, Geotechnical Study, Environmental Baseline Studies, Heritage Evaluation, and Water Quality and Climate Monitoring Surveys Auger - Drilling, Water - Geochemistry, Metallurgical Tests - Lab Work/Physical Studies, Environmental Assessment/Impact - Studies, Geotechnical - Studies, Heritage/Archeological - Studies 9 96.77
096728 2013 Assessment Report Describing Geochemical Sampling, Hand Trenching, Prospecting and Geological Mapping at the Rau Trend Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Hand - Trenching
096607 2012 Assessment Report Describing Metallurgical Testing, Wildlife Monitoring, Heritage Evaluation, and Water Quality and Climate Monitoring Surveys Water - Geochemistry, Metallurgical Tests - Lab Work/Physical Studies, Environmental Assessment/Impact - Studies, Heritage/Archeological - Studies
096597 2012 Assessment Report Describing Geochemical Sampling, Auger Sampling, Geological Mapping, Diamond Drilling, and Geophysical Surveys Air Strip - Development, Surface, Auger - Drilling, Diamond - Drilling, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, Magnetics - Ground Geophysics, Prospecting - Other, Hand - Trenching 172 37340.37
095938 2011 Assessment Report Describing Geochemical Sampling, Geological Mapping and Remote Sensing Surveys at the Rackla Gold Property Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, LIDAR - Remote Sensing, Heritage/Archeological - Studies
095721 2010 Assessment Report Describing Geophysics, Soil Geochemistry and Diamond Drilling at the Rau Property Electromagnetic - Airborne Geophysics, Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Diamond - Drilling, Diamond - Drilling, Drill Core - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Downhole Survey - Ground Geophysics, Gravity Survey - Ground Geophysics, IP - Ground Geophysics 170 36900.84
095684 2009 Geological Mapping, Prospecting, Soil Geochemistry and Diamond Drilling at the Rau Property Interpretation - Airphotography, Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Water - Geochemistry, Regional Surficial Mapping - Geology, IP - Ground Geophysics, Metallurgical Tests - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Data Compilation - Pre-existing Data, Process/Interpret - Pre-existing Data, Biophysical Mapping - Studies, Environmental Assessment/Impact - Studies, Geotechnical - Studies, Heritage/Archeological - Studies 58 9578.30
095131 2008 Geological Mapping, Prospecting, Soil Geochemistry, Diamond Drilling, and Geophysical Surveys at the Rau Property Magnetic - Airborne Geophysics, VTEM - Airborne Geophysics, Diamond - Drilling, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other 18 3423.21
093987 1998 Digital Topography, Landsat, and Colour Air Photo Survey over the Clark Claims] Orthophoto - Airphotography, Rock - Geochemistry, Landsat - Remote Sensing

Related References

Number Title Page(s) Document Type
Citations
ATAC RESOURCES LTD, May/2014. Assessment Report #096725 by J. Lane and R. Phillips.

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