Occurrence Details


Occurrence Number:
115I 037
Occurrence Name:
Cash
Occurrence Type:
Hard-rock
Status:
Deposit
Date printed:
8/16/2022 4:12:22 PM

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General Information
Capsule
Work History
Assessment Reports
References
Resource / Reserve
Drill Core

General Information

Primary Commodities: copper, molybdenum
Secondary Commodities: antimony, gold, lead, silver, zinc
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 62°25'45" N - -137°37'12" W
NTS Mapsheet(s): 115I05
Location Comments: Georeferenced from Figure C1 (p. 13) in AR 061206.
Hand Samples Available: No
Last Reviewed:

Capsule

Work History

Staked as the Cash and Johnny cl (Y39873) in November 1969 by E. Schiller and optioned to Atlas Exploration Ltd., which carried out geochemical silt sampling and geological mapping in 1970.

The west half was re-staked as Car cl (Y78734) in May 1974 by the Carmacks Syndicate (Castlemaine Exploration Ltd., Welcome North Mines Ltd., W.M. Bath Inv Ltd. and Ventures West Capital Ltd.), and optioned to a joint venture between Western Mines Ltd., Belmoral Mines Ltd. and Cream Silver Mines Ltd., which carried out grid geochemical soil sampling and magnetometer surveying in 1974, added 96 EX cl (Y91625) in November 1974 and drilled 12 holes (1,026.3 m) in 1975.

The east half was re-staked as Bear and Fox cl (Y80423) in August/September 1974 by Klotassin Joint Venture (Newconex Canada Exploration Ltd., Marietta Resources International Ltd., Molybdenum Corporation of America) which carried out magnetic surveying, grid soil sampling and hand pitting in 1974, added the Roc cl (Y91802) in December 1974 and constructed an airstrip and participated in an IP survey with Western Mines Ltd., et al in 1975.

Re-staked as Cash cl (YA82667) in July 1984 by Archer, Cathro, which explored by bulldozer trenching in 1984 and sold the property to Nordac Mining Corporation, which added more claims and performed mapping and geochemical sampling in 1985. Nordac changed its name to Big Creek Resources Ltd. and vended the property into Big Creek Joint Venture (Big Creek Resources Ltd. and Rexford Minerals Ltd.) in the spring of 1987. Big Creek Joint Venture optioned the claims in 1988 to Rinsey Mines Ltd, which built an access road in 1989 then sold the claims to Auspex Gold Ltd. in February 1990. A.C. Main fringed the claims with Lotsa cl (YB27133) in February 1990. Big Creek Resources Ltd. optioned the Cash property and the surrounding claims, including the Lotsa group, in December 1990, and added Big cl (YB35594) in the same month, and added more Big claims (YB35650) in February 1991. Two diamond drill holes (387.1 m) were drilled in November 1991. Big Creek changed its name to Cash Resources Ltd. and performed line cutting on the Cash, Fox, Lotsa, Nex, Bear, Big and Nitro claims in 1993. In January 1994, Cash Resources transferred the claims back to Archer, Cathro and Associates (1981).

Regional & Property Geology

The occurrence is partly underlain by Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississippian metamorphic rocks separated into meta-sedimentary and meta-igneous suites. The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite.

The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Allan & Friend, 2018; AR 091619), including:
1. Early Jurassic granodiorite to granite and monzonite to syenite plutonic suites;
2. Mid-Cretaceous Mount Nansen Suite andesite;
3. Mid-Cretaceous Whitehorse granodiorite, quartz monzonite and granite;
4. Late Cretaceous Casino calc-alkaline suites; and,
5. Feldspar porphyry dykes and plugs.

The Cash occurrence is located on the south side of the Big Creek Fault and associated with northerly trending feldspar porphyry dykes and plugs crosscutting Paleozoic schists and syenites (AR 091619; Ryan et al., 2013).  

Mineralization & Results

Copper, molybdenum and gold occur in a 3,050 x 900 m area of porphyry-style mineralization associated with northerly trending feldspar porphyry dykes and plugs. Mineralization occurs as finely disseminated pyrite and chalcopyrite with minor molybdenite in hairline quartz veins (AR 090067; AR 091619).

Based on the 1975 to 1977 drilling (20 shallow drill holes spaced at 150 m centres), a maximum hypogene grade of 0.17% Cu and 0.018% MoS2 within a volume of 2,267,962,000 tonnes to a depth of 305 m. Gold content is about 0.2 g/t and silver content ranges from about 0.4 to 9.0 g/t. Four of the early drill holes defined a northwest limit to the deposit, which is still open to three sides and to depth (AR 090067).

Two zones grading better than 0.4% Cu equivalent (using 1977 Cu and Mo prices) have been defined to date. The Journeay Zone, the initial discovery, lies at the southwest end of the area of mineralization and is covered by thin overburden. The best hole in this zone (W3) averaged 0.28% Cu and 0.054% MoS2 over a core length of 79 m. The Jensen Zone occurs at the northeast end of the drill pattern and was found in an area of deep overburden by 1977 hole K4, which averaged 0.2% Cu and 0.054% MoS2 over a core length of 57 m (AR 090067).

The 1984 trenching explored gold soil geochemical anomalies associated with the exposed portion of the porphyry copper deposit. The 1985 geochemical sampling outlined three areas of gold and gold-arsenic soil geochemical anomalies. These appear to be related to fault structures peripheral to the main porphyry deposit. A specimen of arsenopyrite-rich float found during construction of the airstrip in 1975 assayed 68 g/t Au, 710 g/t Ag, 12.9% Pb, 6.5% Zn, 0.2% Cu and 2.9% Sb and may have been derived from one of these anomalies (AR 091619).

The 1991 drill holes returned consistent values in copper and molybdenum, including an intersection of 0.21% Cu, 0.015% Mo and 0.14 g/t Au over 234.7 m in hole 91-2 (093001).

Work History

Date Work Type Comment
12/31/1991 Drilling Two holes, 387.1 m.
12/31/1985 Geology
12/31/1985 Geochemistry
12/31/1984 Trenching
12/31/1977 Drilling Eight holes, 858 m.
12/31/1975 Development, Surface
12/31/1975 Drilling Twelve holes, 1,026 m.
12/31/1975 Ground Geophysics
12/31/1974 Geochemistry
12/31/1974 Ground Geophysics
12/31/1974 Trenching
12/31/1969 Geology
12/31/1969 Geochemistry
12/13/1984 Geochemistry
12/13/1984 Geochemistry

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
093152 1993 Linecutting Report Patriot Resources Ltd. Cash Property - Nitro Property Line Cutting Other
091806 1985 Report on Soil Sampling and Economic Potential of the Cash Property Rock Geochemistry, Soil Geochemistry
091619 1984 Bulldozer Trenching at Bear, Fox and Cash Claims Rock Geochemistry, Soil Geochemistry, Mechanical Trenching
090082 1975 A Report on a Time Domain Induced Polarization Survey on Parts of the Car, Bear, and Fox Claim Groups IP Ground Geophysics
090067 1975 Summary Report, 1975 Mt. Freegold Project Carmacks Diamond Drilling, IP Ground Geophysics, Line Cutting Other, Surveying Other 12 1026.26
061206 1975 Geology, Soil Geochemistry and Magnetic Survey of the Cash Property (Bear and Fox Claims) Soil Geochemistry, Bedrock Mapping Geology, Magnetics Ground Geophysics, Line Cutting Other, Hand Trenching
060211 1970 Geological and Geochemical Report on the Johnny-Cash Group Silt Geochemistry, Bedrock Mapping Geology

Related References

Number Title Page(s) Reference Type Document Type
ARMC008516 Fact sheet - Cash Cu+Mo+Au porphyry Property File Collection News Release
ARMC012670 Report for Bob Cathro, Archer Cathro - 27 Samples from altered porphyry intrusive rocks and metasediments & The Cash: A new copper-molybdenum target Property File Collection Miscellaneous Company Documents
ARMC012936 Claim map - Johnny and Cash claims - Noswad project Property File Collection Geoscience Map (General)
ARMC012939 Field sheet - Yukon River area with geology - Klazan, Johnny and Cash claims Property File Collection Geoscience Map (Geological - Bedrock)
060211 Geological and Geochemical Report on the Johnny-Cash Group Yukon Government: Energy, Mines and Resources Assessment Report
061083 Geological, Geophysical and Geochemical Report on the Car 41-56 Mineral Claims Freegold Mountain Area Yukon Government: Energy, Mines and Resources Assessment Report
091619 Bulldozer Trenching at Bear, Fox and Cash Claims Yukon Government: Energy, Mines and Resources Assessment Report
090082 A Report on a Time Domain Induced Polarization Survey on Parts of the Car, Bear, and Fox Claim Groups Yukon Government: Energy, Mines and Resources Assessment Report
061080 Progress Report Mt. Freegold Project - Geological, Geochemical, and Geophysical Report on the Car 57-72 Mineral Claims Freegold Mountain Area Yukon Government: Energy, Mines and Resources Assessment Report
093152 Linecutting Report Patriot Resources Ltd. Cash Property - Nitro Property Yukon Government: Energy, Mines and Resources Assessment Report
090067 Summary Report, 1975 Mt. Freegold Project Carmacks Yukon Government: Energy, Mines and Resources Assessment Report
091806 Report on Soil Sampling and Economic Potential of the Cash Property Yukon Government: Energy, Mines and Resources Assessment Report
061081 Supplemental Geochemical Report on the Car 57-72 Minerals Claims, Whitehorse Mining District, Yukon Yukon Government: Energy, Mines and Resources Assessment Report
093001 Assessment Report Whitehorse Mining District - Cash Property Yukon Government: Energy, Mines and Resources Assessment Report
061206 Geology, Soil Geochemistry and Magnetic Survey of the Cash Property (Bear and Fox Claims) Yukon Government: Energy, Mines and Resources Assessment Report
YEG2017_4 New contributions to the bedrock geology of the Mount Freegold district, Dawson Range, Yukon (NTS 115I/2, 6 and 7) Yukon Geological Survey Annual Report Paper
2018-2 Bedrock geological map of the Mount Freegold district, Dawson Range Yukon Geological Survey Open File (Geological - Bedrock)

Resource/Reserve

Year Zone Type Commodity Grade Tonnage Amount Reported Amount 43-101 Compliant Cut-off
1977 JOURNEAY (OPEN PIT) Historical Estimate copper .17 % 36,287,390 No No Unknown
Calculation based on arithmetic average of 16 drill holes. Only a rough estimation. Reported in Mineral Industry Report 1977, Yukon Territory p. 70-71. At the time, E.M. Jensen was a district geologist employed by Dept of Indian and Northern Affairs in Whitehorse, Yukon.
1977 JOURNEAY (OPEN PIT) Historical Estimate molybdenum .018 % 36,287,390 No No Unknown
Calculation based on arithmetic average of 16 drill holes. Only a rough estimation. Reported in Mineral Industry Report 1977, Yukon Territory p. 70-71. At the time, E.M. Jensen was a district geologist employed by Dept of Indian and Northern Affairs in Whitehorse, Yukon.

Drill core at YGS core library

Number Property Year Drilled Core Size Photos Data
BC-91-1 Cash 1991 HTW-NTW 16 8
BC-91-2 Cash 1991 HTW-NTW 34 1
K-1 Cash 1977 0 0
K-2 Cash 1977 0 0
K-3 Cash 1977 0 0
K-4 Cash 1977 0 0
K-5 Cash 1977 0 0
K-6 Cash 1977 0 0
K-7 Cash 1977 0 0
K-8 Cash 1977 0 0
WM75-01 Cash 1975 BTW 0 1
WM75-02 Cash 1975 BTW 0 1
WM75-03 Cash 1975 BTW 0 1
WM75-09 Cash 1975 BTW 0 1
WM75-10 Cash 1975 BTW 0 1
WM75-11 Cash 1975 BTW 0 1
WM75-12 Cash 1975 BTW 0 1
WM75-13 Cash 1975 BTW 0 1
WM75-14 Cash 1975 BTW 0 1
WM75-15 Cash 1975 BTW 0 1
WM75-16 Cash 1975 BTW 0 1
WM75-17 Cash 1975 BTW 0 1