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Occurrence Details


Occurrence Number
115N 119
Occurrence Name
Mt. Hart
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Secondary Commodities: gold
Deposit Type(s): Unknown
Location(s): 63.918890 N, -140.427780 W
NTS Mapsheet(s): 115N16
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Exploration History

Staked as Hart cl 1-24 and Dolly cl 1-8 (Y65846) in Jan/73 by Silver Standard Mines Ltd, which carried out geological mapping and geochemical rock sampling later in the year. Restaked as Spork cl 1-4 (YA55624) in Jun/81 by L. Stevenson.

Restaked as Loto cl 1-10 (YC13349) in Mar/99 by Prime Properties Syndicate, which staked Jo Jo cl 1-10 (YC13359) to the southwest and Logo cl 1-10 (YC13369) 4 km east at the same time. The claims were subsequently optioned to Prospector International Resources Inc, which carried out geochemical rock, silt and soil sampling and prospecting in 1999. In Oct/99 Prime Properties staked Logo cl 11-35 (YC17734) between the existing claim groups to form a single contiguous claim block.

The Chant claims were staked in 2010 by S. Ryan and optioned to White Gold Corp. The Hart claims were staked in 2013 by White Gold.

Capsule Geology

Mapping by the Geological Survey of Canada in 1972 located several outcrops of Late Cretaceous quartz-pebble conglomerate in the area around Mount Hart. The conglomerates which have thicknesses of 15 to 30 m and outcrop strike lengths of up to 0.8 km are overlain by Late Cretaceous andesitic volcanic rocks. A small outcrop of the conglomerate, approximately 2.7 km south-southwest of Mount Hart, was reported to contain visible gold.

Soil sampling in the Mount Hart area has defined a soil geochemical anomaly measuring 5km north-south and up to 3.5km east-west with values of up to 1120 ppb Au, 14.8 ppm Ag, 1543 ppm As, 81 ppm Sb, 42.2 ppm Bi and 1677 ppm Pb.
 

Location Map

Last Updated: Aug 5, 2022

Work History

Year Work Type Comment
2021 Airphotography: Orthophoto
2021 Geochemistry: Rock
2021 Geology: Detailed Bedrock Mapping
2021 Ground Geophysics: IP
2021 Ground Geophysics: Resistivity
2021 Remote Sensing: LIDAR
2020 Geochemistry: Soil
2020 Ground Geophysics: EM
2020 Ground Geophysics: Magnetics
2017 Airborne Geophysics: Electromagnetic
2017 Airphotography: Orthophoto
2017 Geochemistry: Rock
2017 Geochemistry: Soil
2017 Ground Geophysics: IP
2017 Ground Geophysics: Resistivity
2011 Geochemistry: Rock
2011 Geochemistry: Soil
2011 Geology: Bedrock Mapping
2011 Trenching: Backhoe
1999 Other
1999 Other
1973 Geochemistry: Rock
1973 Geology: Bedrock Mapping
1969 Geochemistry: Silt
1969 Geochemistry: Soil
1969 Geology: Bedrock Mapping

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup:
Group/Suite: Carmacks
Formation: Little Ridge/Casino
Member:
Terrane:
Period Max: Cretaceous
Age Max: 73 MA
Period Min: Cretaceous
Age Min: 68 MA
Rock Major: basalt/breccia/andesite/porphyry/dacite/trachyte
Rock Minor: conglomerate/agglomerate
Reference: Mortensen (1996) - YGS OF 1996-1(G)
Geological Unit (1M): uKC
Geological Unit (250K): uKC1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
097101 2017 Geochemical, Geological, GTProbe, IP-Resistivity, RAB Drilling and DIGHEM Airborne Surveying Report on the Nolan Project, Sixty Mile Area, Yukon Territory Electromagnetic - Airborne Geophysics, Orthophoto - Airphotography, RAB (Rotary Air Blast) - Drilling, Rock - Geochemistry, Soil - Geochemistry, IP - Ground Geophysics, Resistivity - Ground Geophysics 26 1830
095997 2011 Geological and Geochemical Report on the Fifty Mile Property Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Bedrock Mapping - Geology, Backhoe - Trenching, Backhoe - Trenching
095538 2010 Assessment Report Describing 2010 Soil Sampling, Prospecting and Geological Mapping at the Hart Project Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other
094072 1999 Geological and Geochemical Report on the Enchantment Creek-Intrusion related Gold Target-West Central Yukon Territory Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other
061130 1969 Report on the 1969 Exploration Program in the Sixtymile River Area, Yukon Territory Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Mechanical - Trenching 8 431.59
060840 1969 Summary Report for the Connaught Mines Ltd.-Sixty Mile Area, Yukon Cursory Property Visit - Other, Data Compilation - Pre-existing Data

Related References

Number Title Page(s) Document Type
ARMC012814 Map Sheet 115-N-16 showing claims of area and notations - Mount Hart area Geoscience Map (General)
ARMC012828 Air photo overlays - 115-N-16 - Enchantment Creek, Mt. Hart, 50 Mile Creek, Boucher Creek, Haute Gulch, Mt. Tyrell, Granite Gulch, 60 Mile River areas - Air photos no. 12043-341, 12043-336, 12043-335, 12043-337, 12042-322, 12042-319, 12043-285, 12043-283, 12043-281, 12043-282, 12043-284, 12043-339, 12042-318. Geoscience Map (General)
ARMC012823 Map of Enchantment Creek area with notations - Aeromagnetic series map 4282G Geophysical Map
ARMC012827 Notes on Enchantment Creek fly camp Miscellaneous Company Documents
ARMC012822 Map of Enchantment Creek area showing geochemical assays - Field copy - Aeromagnetic series map 4282G Geochemical Map
ARMC012821 Map of Enchantment Creek area showing geochemical location markings - Aeromagnetic series map 4282G Geochemical Map
ARMC012825 Map of Enchantment Creek area showing geology - Aeromagnetic series map 4282G Geoscience Map (Geological - Bedrock)
ARMC012824 Map of Enchantment Creek area showing geology (coloured) - Aeromagnetic series map 4282G Geoscience Map (Geological - Bedrock)
ARMC012826 Map of Enchantment Creek area with waterways marked - Aeromagnetic series map 4282G Geophysical Map
Citations
GEOLOGICAL SURVEY OF CANADA Paper 73-1, Part A, p. 48-49.
MINERAL INDUSTRY REPORT 1973, p. 32.
MORTENSEN, J.K., Geological Compilation Maps of the Northern Stewart River map area Klondike and Sixtymile Districts (115N/15,16; 115O/13,14 and parts of 115O/15,16), 1:50 000 scale. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1996-1 (G).
TEMPELMAN-KLUIT, D.J., 1974. Reconnaissance geology of Aishihik Lake, Snag and part of Stewart River map-areas, west-central Yukon. Department of Energy Mines and Resources; Geological Survey of Canada Paper 73-41, 97 p.
YUKON EXPLORATION AND GEOLOGY 1981, p. 224.

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