Occurrence Details


Occurrence Number:
106D 036
Occurrence Name:
Cheetah
Occurrence Type:
Hard-rock
Status:
Prospect
Date printed:
3/27/2025 6:08:05 AM

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General Information
Capsule
Work History
Assessment Reports
References

General Information

Secondary Commodities: arsenic, bismuth, gold, lead, silver, tungsten, zinc
Aliases: Rau, Rackla
Deposit Type(s): Carbonate-Hosted Disseminated Au-Ag (Carlin-type), Manto Polymetallic Ag-Pb-Zn
Location(s): 64°13'26.78" N - -134°29'28.45" W
NTS Mapsheet(s): 106D01
Location Comments: Coordinates supplied by ATAC 2019
Hand Samples Available: No
Last Reviewed:

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 reconnaissance silt sampling and flew a helicopter-borne magnetic and variable-time domain electromagnetic survey over the newly staked area which included the Cheetah occurrence.
 
In 2009 ATAC Resources carried out grid and contour soil sampling followed by prospecting and rock sampling of anomalous areas including the cheetah 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. In conjunction with a property wide drill program ATAC Resources collared 6 diamond drill holes (945.82 m) on the Cheetah showing and completed soil sampling.
 
In 2011 the company carried out limited grid, ridge and contour soil sampling programs and collared 3 diamond drill holes (483.11 m) on the Cheetah showing. In 2012, ATAC carried out soil sampling over the occurrence area.
 
ATAC Resources performed prospecting and rock geochemistry in 2015 and 2017.
 
Regional & Property 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.

Mineralization & Results

The Cheetah showing, discovered in 2009, is located approximately 4 km northwest of the Tiger deposit and consists of a 500 m long by 400 m wide float train predominantly composed of goethite and limonite float. The float train is cut by a prominent linear. A sample of a purple brown, goethite rich boxwork limonite returned 3.06 g/t gold while all other samples contained less than 0.24 g/t gold. A 10 m trench dug in 2009 approximately 50 m downhill from the float train did not expose any mineralization and samples collected within the trench returned only background values for all elements. In 2010 ATAC Resources tested a portion of the linear corresponding to a 310 m long string of anomalous soil samples with 6 diamond drill holes (945.82 m). The best intersection was obtained from drill hole CH-10-04 which returned 1.29 g/t gold over 16.90 m. In 2011 three holes were drilled and intersected intensely oxidized intervals within the dolomite. The oxidized intervals had an average width of 25 m with a composition ranging from partially oxidized dolomite to limonite rich mud. The most significant intersection from drilling was from hole CH-11-07 which graded 1.11 g/t gold over 13.72 m. In 2017, prospecting was conducted along float trains and northeasterly-trending structures. An oxide float sample collected during this program returned 2.00 g/t gold and 1.29% zinc (see ATAC Resources news release: 6 Feb/2018).

Work History

Date Work Type Comment
12/13/2017 Other
12/13/2015 Geochemistry
12/13/2011 Drilling 3 holes, 483.11m
12/13/2010 Drilling 6 holes 1422.72m
12/13/2010 Geochemistry
12/13/2009 Geochemistry Sampled anomalies.
12/13/2009 Geochemistry Grid and contour sampling.
12/13/2008 Airborne Geophysics
12/13/2008 Airborne Geophysics Also electromagnetic survey.

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
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
096228 2011 Assessment Report Describing Diamond Drilling at the Rau Trend Diamond - Drilling 10 2113.20
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) Reference Type Document Type
YEG2008_OV Yukon Exploration and Geology Overview 2008 p. 7-8, 31, 36. Yukon Geological Survey Annual Report
2013-13 Geological map of the Rackla belt, east-central Yukon (NTS 106C/1-4, 106D/1) Yukon Geological Survey Open File (Geological - Bedrock)
2003Heon Yukon Regional Geochemical Database - Stream sediment analyses Yukon Geological Survey Database
YEG2009_OV Yukon Exploration and Geology Overview 2009 p. 22, 54, 58. Yukon Geological Survey Annual Report
YEG2010_OV Yukon Exploration and Geology Overview 2010 p. 23-24, 60, 65. Yukon Geological Survey Annual Report
YEG2011_OV Yukon Exploration and Geology Overview 2011 p. 36, 73. Yukon Geological Survey Annual Report