Find publications, data and maps managed by the
Yukon Geological Survey

Occurrence Details


Occurrence Number
115H 015
Occurrence Name
Moraine
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: cobalt, copper, tungsten, silver, gold
Aliases: Ah, Ball, Coot, Fox, Highball, Moosehide, Ox
Deposit Type(s): Skarn Cu
Location(s): 61.038610 N, -136.721670 W
NTS Mapsheet(s): 115H02
Location Comments: .5 Kilometres
Hand Samples Available at YGS: Yes

Capsule

Work History

The Moraine occurrence was first staked in 1934/35 as the Moosehide claims (19159). Since, it has been restaked numerous times; in 1947 as Fox, etc cl (57037), in 1954 as Ox cl (67102), in 1961 as Ball cl (75770), in 1966 as the AH 79-93 cl (Y11247), in 1978 and 1981 as Coot cl (YA23457 and YA59995), and in 1989 as Skip cl (YB26357). The claims lapsed between 1990 and 2009 when Strategic Metals restaked the claims as the Hooch cl.

Work completed since 1935 on the Moraine occurrence includes trenching, prospecting, geological mapping, geochemistry, and both ground and airborne geophysics.

Geology

The Moraine showing is located within the Yukon-Tanana Terrane and is generally underlain by Snowcap Assemblage metasediments of late Proterozoic and Paleozoic age. A batholith of the Ruby Range Suite is mapped west of the Moraine property and is of Paleogene age. The batholith consists of various granites, granodiorites, monzonites, diorites and porphyries. A layer of Quaternary sediments covers the showing and therefore there is limited outcrop. As a result, detailed geological maps have been created with a combination of geological and geophysical data.

Near the showing, five metasedimentary units (Snowcap Assemblage) and three intrusive sub-units (granodiorite, andesite and hornblende diorite – Ruby Range Suite) have been identified. The property is floored by a subunit composed of quartz-biotite gneiss and minor micaceous schist, which has a mapped thickness of about 250 m. This subunit is overlain by a 75 m thick package of quartz-rich gneiss to relatively clean quartzite, which is well fractured and generally rusty. The quartzite package is conformably overlain by a 50 m thick section of limestone that comprises white to grey limestone with thin bands of scattered garnets.

The known mineralization on the Moraine property consist of two skarn horizons. The North skarn horizon formed at the quartzite-limestone contact as discontinuous, calc-silicate altered lenses interbedded with limestone. A micaceous schist overlies the North skarn horizon. This schist varied from massive quartz-rich gneiss to highly sheared mica schist. The South skarn horizon is globular in shape (120 by 70 m) and lies near the granodiorite-gneiss contact. Both skarn horizons contain calcite, epidote, actinolite and garnet with local concentrations of magnetite, pyrrhotite, pyrite, chalcopyrite, molybdenum and molybdo-scheelite. Secondary copper minerals such as malachite occur on fractures in other subunits.

Both skarn horizons are variably mineralized. The North skarn has been discontinuously sampled over a 30 m wide by 100 m long area. Samples collected in 2011 yielded values up to 0.391 g/t gold, 25.2 g/t silver, low bismuth (less than 5 ppm), 1.06% copper, 38.6% iron, 804 ppm molybdenum and 930 ppm tungsten.

The South skarn spans a 70 m wide by 120 m long area. Skarn samples collected in 2011 returned values up to 2.1 g/t gold, 425 g/t silver, 55 ppm bismuth, 7.22% copper, 37.3% iron, 178 ppm molybdenum and 740 ppm tungsten. (AR096042 - 2011)
 

Location Map

Last Updated: May 14, 2019

Work History

Year Work Type Comment
2016 Geochemistry: Rock
2016 Geochemistry: Soil
2015 Geochemistry: Rock
2015 Geochemistry: Soil
2015 Other: Prospecting
2013 Geochemistry: Soil
2013 Geology: Bedrock Mapping
2011 Airborne Geophysics: Magnetic
2011 Airborne Geophysics: VTEM
2011 Geochemistry: Rock
2011 Geochemistry: Soil
2011 Other: Prospecting
2010 Geochemistry: Rock
2010 Geochemistry: Soil
2010 Geology: Detailed Bedrock Mapping
1990 Geology: Bedrock Mapping
1990 Ground Geophysics: Magnetics
1982 Geochemistry: Soil
1982 Geology: Bedrock Mapping
1982 Ground Geophysics: EM VLF-EM survey.
1979 Geochemistry: Soil
1979 Geology: Bedrock Mapping
1979 Ground Geophysics: Magnetics
1975 Trenching: Hand
1972 Trenching: Hand
1969 Geochemistry: Soil
1969 Geology: Bedrock Mapping
1969 Ground Geophysics: Magnetics
1969 Trenching: Mechanical
1966 Trenching: Hand
1961 Trenching: Mechanical Conducted between 1961 and 1966.
1949 Trenching
1948 Trenching
1934 Development, Underground: Shaft Development
1934 Trenching: Hand
1867 Trenching

Regional Geology - Terrane

Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian


Regional Geology - Bedrock

Supergroup:
Group/Suite: Snowcap
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Tonian
Age Max: 900 MA
Period Min: Devonian
Age Min: 375 MA
Rock Major: bi-ms-qt-fp-schist/gt-quartzite/cl-bi-orthogneiss
Rock Minor: bt-ms-gneiss/amphibolite
Reference: Tempelman-Kluit (1974) - GSC Map 17-1973
Geological Unit (1M): PDS
Geological Unit (250K): PDS1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096946 2016 Assessment Report Describing Geochemical Sampling and Hand Pitting Rock - Geochemistry, Soil - Geochemistry
096772 2015 Geochemical Sampling and Hand Pitting at the Moraine Property Rock - Geochemistry, Soil - Geochemistry, Hand - Trenching
096482 2012 Geochemical Sampling and Geophysical Survey Interpretation Silt - Geochemistry, Soil - Geochemistry, Process/Interpret - Pre-existing Data
096042 2011 Prospecting, Geochemical Sampling and Geophysical Survey at the Hooch Property Rock - Geochemistry, Soil - Geochemistry, EM - Ground Geophysics, Magnetics - Ground Geophysics, Prospecting - Other
092884 1990 Report on Magnetometer Survey and Reconnaissance Geology Bedrock Mapping - Geology, Magnetics - Ground Geophysics

Related References

Number Title Page(s) Document Type
ARMC013132 Hutshi Lakes field sheet - Aeromagnetic series map 3326G Geophysical Map
ARMC016646 Geochemistry map - 115H/2 - Hutshi Lakes Geochemical Map
Citations
Bonaparte Resources Inc.,Strategic Metals Ltd., Jul/12, AR# 96042 by H. Smith
Bonaparte Resources Inc.,Strategic Metals Ltd., Jul/12, AR# 96043 by A. Mitchell
Strategic Metals Ltd., Aug/13, AR# 96482 by X. Montague
Strategic Metals Ltd., Jan/16, AR# 96772 by A. Mitchell
Strategic Metals Ltd., Jan/17, AR# 96946 by K. Willms
Strategic Metals Ltd., Mar/14, AR# 96578 by E. Flavelle
YUKON EXPLORATION 1990, p. 110
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 103, 258.

Submit Information to Yukon Geological Survey

Name:

E-mail:

Comment: