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Occurrence Details


Occurrence Number
115H 048
Occurrence Name
Killermun
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Deposit Type(s): Unknown
Location(s): 61.157220 N, -137.663890 W
NTS Mapsheet(s): 115H04
Location Comments: 1 Kilometres
Hand Samples Available at YGS: Yes

Capsule

Work History

Staked in Aug/86 as Ruby cl (YA95678) by United Keno Hill ML, which performed mapping and geochem sampling in 1987, and as KIL cl (YA95647) by Silverquest Res L, which prospected and soil sampled in 1987. United Keno soil sampled and mapped in 1989. 
J.P. Ross staked the Spruce, Cliff and Wall cl (YA96123) 2 km to the west in Aug/86, performed soil sampling in 1987, and added additional Cliff cl (YB21207) in Aug/88. United Keno soil sampled and mapped in 1989. 
In 1994 Cash Resources carried out grid soil sampling, prospecting, some geological mapping, excavator trenching and experimental geophysical surveys on its Ruby Range project located approximately 1 km to the north. 
J.P. Ross staked Yola cl 1-28 (YB57969) 2 km to the east between Jul and Aug/95.

In 2010, 18526 Yukon Inc. staked the area as the Cliff property. During 2011 and 2012, the company conducted soil sampling and limited stream sediment sampling which were followed up in 2013 over Cliff Main Zone and the HI target. A small magnetic survey was conducted in 2013 but did not yield useful results.

in 2019, high resolution orthophotography and a DEM survey was captured over the Cliff Main Zone.

In 2022, rock sampling, soil sampling, and detailed bedrock and structural mapping was completed.

Capsule Geology

The area lies within the Taku Terrane which is bounded on the southwest by the Denali Fault and the northeast by a belt of intrusions related to the Coast Plutonic Complex. The Taku Terrane is a northwest-trending band of metasedimentary and metavolcanic rocks that extend over 1 200 km from the Alaskan Panhandle through western Yukon into southern Alaska. The main intrusive bodies in the vicinity are related to the Ruby Range Plutonic Suite which is thought to be an extension of the Great Tonalite Sill in Alaska. 
Gold bearing quartz veins occur in biotite schist and muscovite schist of the Kluane Assemblage which is intruded by the Ruby Range Plutonic Suite. Both schists are graphitic, exhibit coarse schistosity and contain abundant blue-grey sieve textured porphyroblasts of graphite-filled andesine. Protoliths for the units are believed to be Mesozoic flysch derived from the west. Biotite-garnet-staurolite schist with minor tourmaline is the dominant unit in the claim area, and occurs in the upper panel of a thrust fault cutting across the southeast corner of the property. The trace of the fault is intermittently marked by a series of elongate lenses of olivine-serpentine schist. Sillimanite-grade thermal overprinting is believed to be related to the emplacement of the Ruby Range Batholith. 
The Ruby Range Plutonic Suite (50 - 57 Ma) includes the Ruby Range Batholith which lies along the northeast side of the Kluane Assemblage plus smaller intrusions that cut the metasedimentary rocks. The predominant rock type consists of medium to coarse grained, non-foliated biotite hornblende granodiorite. The batholith was emplaced as a northeast-dipping sheet parallel to the regional metamorphic fabric, and is inferred to have been intruded during the last stage of metamorphism. 
The claims were originally staked to cover gold anomalies in silt, from a GSC survey. United Keno Hill mapped a homoclinal sequence of felsic and mafic schist layers consisting of varying proportions of biotite, plagioclase and cordierite. North-trending vesicular andesite dykes and discordant quartz veins cut the schist. An andesite dyke returned a K-Ar age of 49.4 Ma, similar to the Nisling Alaskite and associated dyke swarms to the north.

References

CASH RESOURCES LTD, Mar/95. Assessment Report #093250 by W. Wengzynowski 

GEORGE CROSS NEWSLETTER, 28 Apr/95; 10 Aug/95; 22 Sep/95. 

NORTHERN MINER, 8 May/95. 

ROSS, J.P., Dec/87. Assessment Report *#091983 by J.P. Ross. 

ROSS, J.P., Dec/87. Assessment Report *#091985 by J.P. Ross. 

UNITED KENO HILL MINES LTD, Jan/88. Assessment Report *#092000 by L. Walton. 

YUKON MINING AND EXPLORATION OVERVIEW 1989, p. 10.

 

Location Map

Last Updated: Apr 19, 2023

Work History

Year Work Type Comment
2022 Geochemistry: Rock
2022 Geochemistry: Soil
2022 Geology: Detailed Bedrock Mapping
2019 Airphotography: Orthophoto
2013 Geochemistry: Soil
2013 Ground Geophysics: Magnetics
2013 Remote Sensing: LIDAR
2012 Geochemistry: Silt
2012 Geochemistry: Soil
2011 Geochemistry: Soil Recon contour soils
1994 Geochemistry: Soil Also rock sampling.
1994 Geology: Bedrock Mapping
1994 Ground Geophysics: EM HLEM survey run as a test.
1994 Trenching: Mechanical
1994 Other: Prospecting
1989 Geochemistry: Soil
1989 Geology: Bedrock Mapping
1987 Geochemistry: Silt
1987 Geochemistry: Soil
1987 Geology: Bedrock Mapping
1987 Other: Prospecting

Regional Geology - Terrane

Group: Insular
Affinity: E Pacific
Name: Kluane schist
Realm: Pacific


Regional Geology - Bedrock

Supergroup:
Group/Suite: Kluane schist
Formation:
Member:
Terrane: Kluane
Period Max: Cretaceous
Age Max: 140 MA
Period Min: Cretaceous
Age Min: 82 MA
Rock Major: muscovite schist
Rock Minor: biotite schist/psammitic schist
Reference: Israel et al. (2011) - YGS OF 2011-2
Geological Unit (1M): KK
Geological Unit (250K): KK3

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096554 2013 Geochemical and Geophysical Assessment Report for Work Performed on the Cliff Property Rock - Geochemistry, Soil - Geochemistry, Magnetics - Ground Geophysics, Prospecting - Other
096160 2012 Geochemical Assessment Report for Work Performed on the Cliff Property Silt - Geochemistry, Soil - Geochemistry
091985 1987 Geochemical Report Silt - Geochemistry

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