Occurrence Details

Occurrence Number:
106C 108
Occurrence Name:
North Rackla-Extension
Occurrence Type:
Hard-rock
Status:
Prospect
Date printed:
4/28/2025 5:40:28 PM

Print Options

General Information
Capsule
Work History
Assessment Reports
References

General Information

Secondary Commodities: copper, gold, lead, manganese, silver, zinc
Deposit Type(s): Manto Polymetallic Ag-Pb-Zn
Location(s): 64°30'7.99" N - -133°41'10.05" W
NTS Mapsheet(s): 106C12
Location Comments: Location based on YKDD18-0012 drillhole collar (AR 097261)
Hand Samples Available: No
Last Reviewed:

Capsule

WORK HISTORY

Cantex Mine Development Corp was attracted to the area by the Carlin-type gold discoveries in the Rackla Gold Belt. The company carried out a regional reconnaissance heavy mineral sampling program in 2011. Based on results of the program the company staked NR cl 1 - 651 (YF43001) in Aug/2012 following which they collected 52 heavy mineral samples from creeks draining the claim block. During the 2013 exploration program the company carried out property-wide soil-talus and rock sampling and further heavy mineral sampling. The Extension Zone was discovered in 2013 as an extension to the Discovery Zone. In 2014 Cantex collected soil-talus, rock and heavy mineral samples over the property, but none of this work was filed. . In 2015 and 2016, Cantex prospecting in the occurrence area. In the fall the company tested the Extension zone, part of the Massive Sulphide zone, with 8 diamond drill holes. In 2018, the company carried out soil sampling north and northwest of the occurrence and diamond drilling over the occurrence (5 holes, 966.24 m).

GEOLOGY & RESULTS

The North Rackla-Extension occurrence lies in a package of Wernecke Supergroup rocks dominated by Paleprotozoic Gillespie Lake dolostone interbedded with lesser black siltstone, shale and laminated mudstone and minor sandstone of the Quartet Group. Dismembered minor Mesoproterozoic Hart River diorite gabbroic sills and dykes are also mapped in the area (YGS Bedrock Geology, May 2019).
  
The Extension zone is part of the larger Massive Sulphide Zone and occurs at the southwest end of that zone. Composite sampling of sub-crop carried out in 2016 returned values up to 314 g/t silver, 13.85 % lead, 18.7 % zinc and 1.97 % copper. In the fall of 2016 Cantex tested the Extension zone with 8 diamond drill holes (no footage reported). Seven of the holes were collared from the same site (occurrence location) but tested different azimuths and or inclinations. The eighth hole was collared 87 m to the northeast. All eight holes intersected the oxidized massive sulphide zone that increased in grade and width with depth. The best results were returned from drill hole YKDD-0006 which returned 4.05 m (from 22.95 m) grading 21.1 g/t silver, 2.12 % lead and 1.79 % zinc; 5.7 m (33.0 m) of 137 g/t silver, 2.8 % lead and 0.83 % zinc; and 4.4 m (43.7 m) of 49 g/t silver, 5.35 % lead and 5.99 % zinc.

Analysis of soil and rock geochemical results collected from along the entire Massive Sulphide zone indicates that the most anomalous copper areas correspond with the most anomalous areas of manganese, silver and lead. The highest zinc anomalies accompanied with lead are typically peripheral to the area’s most anomalous in copper, manganese, silver and lead. 

REFERENCES

CANTEX MINE DEVELOPMENT CORP. Feb/2017. Assessment Report # 097261 by C. Ulansky and S. Morton.
CANTEX MINE DEVELOPMENT CORP. Feb/2017. Assessment Report # 097019 by C. Ulansky and S. Morton.
CANTEX MINE DEVELOPMENT CORP. Jul/2016. Assessment Report # 096931 by C. Ulansky and A. Koffyberg.
CANTEX MINE DEVELOPMENT CORP. News Release. 16 Feb/2011, 18 Jan/2013, 7 May/2013, 31 Jul/2013, 5 Sep/2013, 3 Oct/2013, 8 Nov/2013, 11 Dec/2013, 23 Jan/2014, 9 Jun/2014, 21 Jul/2014, 26 Aug/2014, 24 Sep/2014, 30 Oct/2014, 14 Nov/2014, 30 Apr/2015, 15 Jun/2015, 18 Aug/2015, 14 Oct/2015, 22 Jan/2016, 25 Jul/2016, 15 Nov/2016, 2 Dec/2016, 7 Apr/2017, 28 Jun/2017.
CANTEX MINE DEVELOPMENT CORP. Oct/2017. Web Site: www.cantex.ca.
CANTEX MINE DEVELOPMENT CORP. Sep/2013. Assessment Report # 096603 by S. Morton.
 

Work History

Date Work Type Comment
7/1/2021 Drilling 11 holes, 5,171 m
7/1/2021 Geochemistry
7/1/2020 Geochemistry
7/1/2020 Drilling 18 holes, 9,070.93 m
7/1/2020 Geochemistry
7/1/2020 Geochemistry
7/1/2020 Other
12/13/2018 Drilling 1490.29 m in 9 holes
12/13/2018 Geochemistry
12/13/2017 Geochemistry
12/13/2017 Geochemistry
12/13/2017 Trenching
12/13/2016 Drilling Eight holes collared on Extension zone, no footage reported.
12/13/2016 Geology Mapped selected areas.
12/13/2016 Trenching Trenched in Northern area and Extension zone.
12/13/2015 Geochemistry Further infill rock and soil-talus sampling.
12/13/2015 Other Prospected anomalous areas.
12/13/2014 Geochemistry Sampled new areas.
12/13/2014 Geochemistry Infill soil-talus sampling.
12/13/2014 Drilling 181 short holes, no footage reported.
12/13/2013 Geochemistry
12/13/2013 Lab Work/Physical Studies Mainly in newly staked area.
12/13/2013 Geochemistry Further soil-talus sampling.
12/13/2012 Geochemistry
12/13/2012 Lab Work/Physical Studies Follow-up sampling.
12/13/2012 Geochemistry Due to area samples were combination soil-talus.
12/13/2011 Lab Work/Physical Studies Regional program to pin point anomalous areas.

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
097261 2018 Assessment Report on the 2018 Exploration Activity in North Rackla Diamond - Drilling, Rock - Geochemistry 9 1490.27
097019 2016 Assessment Report on the 2016 Geological Mapping and Geochemical Survey North Rackla Property
096931 2015 Assessment Report on the 2015 Geochemical Survey Analytical Results - North Rackla Property Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry
096603 2013 An Assessment Report of the North Rackla Claim Block, Mayo Mining District, Yukon Territory, Canada Rock - Geochemistry, Soil - Geochemistry, Heavy Mineral Concentrate - Lab Work/Physical Studies, Prospecting - Other

Related References

Number Title Page(s) Reference Type Document Type
YEG2011_OV Yukon Exploration and Geology Overview 2011 p. 27. Yukon Geological Survey Annual Report
10 Geology and Mineral Occurrences of Slats Creek, Fairchild Lake and "Dolores Creek" Areas, Wernecke Mountains (106D/16, 106C/13, 106C/14), Yukon Territory Indian & Northern Affairs Canada/Department of Indian & Northern Development: Exploration & Geological Services Division Bulletin
YEG2012_OV Yukon Exploration and Geology Overview 2012 p. 36. Yukon Geological Survey Annual Report
YEG2013_OV Yukon Exploration and Geology Overview 2013 p. 28, 42. Yukon Geological Survey Annual Report
YEG2014_OV Yukon Exploration and Geology Overview 2014 p. 24, 40, 42. Yukon Geological Survey Annual Report
YEG2015_OV2 Yukon Hard Rock Mining, Development and Exploration Overview 2015 p. 43. Yukon Geological Survey Annual Report Paper
YEG2016_OV4 Yukon Hardrock Mining, Development and Exploration Overview 2016 p. 52, 56, 59. Yukon Geological Survey Annual Report Paper