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Occurrence Details


Occurrence Number
115P 030
Occurrence Name
Oliver
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: copper, gold, zinc, tin, silver
Aliases: Epd, Oli
Deposit Type(s): Skarn Sn
Location(s): 63.761979 N, -136.512885 W
NTS Mapsheet(s): 115P15
Location Comments: Location of drill collar 81-14 from georeferenced map in AR 091015
Hand Samples Available at YGS: Yes

Capsule

Work History
Staked as EPD cl (YA30569) in Jun/78 by CCH Res L (Campbell Chibougamau ML) & Inco, which performed mapping and sampling later in the year.  In 1979, Billiton E Can L joined CCH & Inco and formed the Cortin Project, which added Lamb & Flag claims and carried out soil sampling and hand trenching in 1979, drilled 4 holes (322 m) in 1979. 

CCH changed its name to Campbell Res Inc in 1980. Drilled 916 m in 8 holes in 1980, hand trenched and soil sampled. Drilled 8 holes (1524 m) in 1981, and performed geochem and geophysical surveys in 1981. 

In Apr/92 G.S. Davidson and B. Harris restaked the occurrence with NHL cl 1-56 (YB28373). Davidson registered the NHL cl 21-24 (YB28393) separately in his own name. In the summer of 1994 Davidson carried out a small reconnaissance exploration program on his claims and resampled diamond drill core stored at the H.S. Bostock Core Library (DIAND) in Whitehorse. G. Davidson restaked the NHL cl 1-12 & 25-28 (YB43907) in Feb/95.

Restaked in 2010 and 2011 as O 1-91, OVA9A 18, OV 1-310, OVX 1-21, OVA 1-62.  In 2011, the company undertook mapping, and geochemical surveys. The area was re-staked in 2019 as Oli 1-24.  In 2019, the company explored with rock and soil geochemical surveys and undertook petrographic work. In 2020, Strategic Metals performed rock and soil sampling.

Capsule Geology

A late Cretaceous porphyritic muscovite-biotite granite of the McQuesten Suite Boulder Creek stock intrudes Hyland Group metasedimentary rocks (Late Proterozoic or Early Cambrian). Originally the claims covered the location of stream pan concentrates containing up to 7.4% Sn and 1.9% WO3. Soil sampling in 1978 and 1979 located several east-trending tin anomalies and found malachite-stained float assaying 0.2% Sn, 0.8% Cu, 0.2% Zn and 45 g/t Ag. 

The four holes drilled in 1979 at 25 m intervals, all contained tin values. DDH 1979-01 intersected 6.02 m of 1.03% Sn and 14.98 g/t Ag.  DDH 1981-13 intersected multiple mineralized intervals: 0.16 m of 0.39% Sn and 3.60 g/t Ag; 2.9 m of 0.57% Sn and 11.28 g/t Ag; and, 0.80 m of 15.0% Sn and 4.00 g/t Ag.

The best intersection in 1981 assayed 0.9% Sn and 12 g/t Ag across 3.7 m and 2.5% Sn and 2 g/t Ag across 1.0 m. The best mineralization occurs as cassiterite and sphalerite with silver values in tourmaline-matrix breccias in quartzite and schist. Cassiterite also occurs in narrow dry fractures, quartz veins and actinolite-pyrrhotite-chlorite skarns. Actinolite-chlorite-calcite-diopside-quartz-epidote skarn containing pyrrhotite, pyrite, scheelite and cassiterite assayed 0.9% Sn and 4 ppm Ag over 1.7 m.

Davidson and Harris explored the property for Fort Knox style intrusion-related gold mineralization in 1994. Emond and Lynch (1992) noted a strong positive correlation between gold and bismuth, and suggested that bismuth can be used as a pathfinder for gold in this area.  Twenty-seven core samples from various mineralized sections of drill core stored at the core library were anomalous in Ag-Cu-Zn-Bi but did not return significant Au values. A sample of actinolite skarn containing a 2 cm wide band of arsenopyrite was collected from an old trench by a geologist from the Canada-Yukon Geoscience office and assayed 1630 ppb Au, 34.9 ppm Ag, 2 685 ppm Cu and 739 ppm Zn.

In 2011, Goldstrike undertook a ridge and spur soil sampling program that covered the property (1326 soil samples) and collected 31 rock samples to the south and to the west. Rock sample 1217925 returned 4003 ppb Au, 0.66% Cu, >100 ppm Ag and >2000 ppm Co. 

Location Map

Last Updated: Apr 12, 2022

Work History

Year Work Type Comment
2020 Geochemistry: Rock
2020 Geochemistry: Soil
2019 Geochemistry: Rock
2019 Geochemistry: Soil
2019 Lab Work/Physical Studies: Petrographic
2011 Geochemistry: Rock
2011 Geochemistry: Soil
2011 Geology: Detailed Bedrock Mapping
2011 Other: Prospecting
1994 Geochemistry: Historical Drill Core Resampled drill core.
1994 Geochemistry: Rock Also heavy mineral sampling.
1994 Other: Prospecting
1994 Geochemistry: Silt
1981 Drilling: Diamond Eight holes, 1,524 m.
1981 Geochemistry: Rock
1981 Geochemistry: Soil
1981 Trenching: Backhoe
1980 Geochemistry: Soil
1980 Trenching: Hand
1980 Drilling: Diamond 8 holes, 916.75 m
1979 Drilling: Diamond Four holes, 322 m.
1979 Geochemistry: Soil
1979 Trenching: Hand
1979 Other Billiton E Can L joined CCH & Inco to form Cortin Project. Added Lam & Flag claims
1978 Geochemistry: Soil Also rock samples.
1978 Geology: Bedrock Mapping
1978 Other Staked as EPD claims in June 1978 by CCH Res L (Campbell Chibougamau ML) & Inco
1978 Geochemistry: Rock

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup: Windermere
Group/Suite: Hyland
Formation: Yusezyu
Member:
Terrane: Laurentia
Period Max: Ediacaran
Age Max: 635 MA
Period Min: Ediacaran
Age Min: 542 MA
Rock Major: phyllite/shale/sandstone/grit/conglomerate/limestone
Rock Minor: marble
Reference: Green & Roddick (1972) - GSC Map 1283A
Geological Unit (1M): PCH
Geological Unit (250K): PCH6

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
095931 2011 A Geological and Geochemical Report on the Oliver Property Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Detailed Bedrock Mapping - Geology, Prospecting - Other, Prospecting - Other
093274 1994 Assessment Report on the NHL Property Historical Drill Core - Geochemistry, Rock - Geochemistry, Silt - Geochemistry, Cursory Property Visit - Other
091015 1981 1981 Diamond Drill Logs (Hole 81-13, 81-20) EPD Claims 1-84 Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry, Backhoe - Trenching 8 1518.30
090758 1980 [Diamond Drill Log, Cortin Venture, EPD Property] Diamond - Drilling 8 916.75
090542 1979 Assessment Report Geochemical Survey, Geological Mapping EPD Claims 1 to 84 Soil - Geochemistry, Detailed Bedrock Mapping - Geology
090476 1978 Assessment Report Regional Geochemical Survey EPD Claims 1 to 84 Rock - Geochemistry, Soil - Geochemistry

Related References

Number Title Page(s) Document Type
MIR1978 Mineral Industry Report 1978 Annual Report
Citations
EMOND, D.S., 1985. Tin and tungsten veins and skarns in the McQuesten River Area. In: Exploration in Yukon Overview, Appendix C; Exploration and Geological Services Division, DIAND Open File.
EMOND, D.S., 1992. Petrology and geochemistry of tin and tungsten mineralized plutons, McQuesten River Region, Central Yukon. In: Yukon Geology Vol. 3, Exploration and Geological Services Division, DIAND, p. 167-195.
EMOND, D.S., and LYNCH, T., 1992. Geology, mineralogy and geochemistry of tin and tungsten veins, breccias and skarns, McQuesten River region (115P (North) and 105M 13), Yukon. In: Yukon Geology Vol. 3, Exploration and Geological Services Division, DIAND, p. 133-159.
Yukon Digital Geology <accessed November 26, 2021>
YUKON EXPLORATION AND GEOLOGY 1981, p. 229; 1982, p. 217.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 278-279.

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