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Occurrence Details


Occurrence Number
116B 084
Occurrence Name
Tart
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: zinc
Deposit Type(s): Sediment hosted Mississippi Valley-Type Pb-Zn (MVT)
Location(s): 64.837780 N, -139.873060 W
NTS Mapsheet(s): 116B13
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Tart cl 1-80 (Y90229) in November, 1974 by Dynasty Exploration Ltd. as a result of anomalous silt and soil sample collected during regional reconnaissance. In 1975, the claims were transferred to Cyprus Anvil Mining Corporation which carried out prospecting, geological mapping, grid geochemical soil sampling and drilled four holes (494.7 m).

Pamicon Developments Ltd. and Equity Engineering Ltd. staked Monster cl 1-40 (YB42067) 1 km to the south (MINFILE occurrence 116B 003) in June, 1993. In June, 1996 Blackstone Resources Inc, which had acquired the Monster claims through its predecessor, carried out helicopter-borne magnetic and radiometric surveying of it claim holdings and adjacent areas. The surveying included this occurrence, although subsequent ground follow-up focused on areas to the south and east.

Regional & Property Geology

The area is situated in the southern Ogilvie Mountains and is cored by the Coal Creek Inlier, an oval shaped and east-trending window of Proterozoic clastic rocks that have been penetrated by mineralized breccias and cut by mafic sills and dikes. The Lower Proterozoic stratigraphy of the Coal Creek Inlier has been correlated by Thorkelson (2000) with that of the Wernecke Supergroup, defined by Delaney (1985), in the Wernecke Mountains located some 250 km to the east. The geological setting of the southern Ogilvie Mountains is considered highly favourable for hosting Olympic Dam type Cu-U-Au-Ag deposits.

The occurrence is underlain by Quartet and Gillespie Lake Group (Wernecke Supergroup) sedimentary rocks that have been intruded by Proterozoic hematite breccias and associated diorite intrusions.

Mineralization & Results

Anvil Mining Corporation found sphalerite with minor galena, chalcopyrite and marcasite and traces of pyrobitumen in two breccia zones cutting Middle Proterozoic dolomite. The company's best drill intersection assayed 11.2% Zn over 1.5 metres.

In 1996, the regional airborne geophysical survey outlined numerous northeast trending features in this area which were interpreted to be faults.

Location Map

Last Updated: Jan 7, 2020

Work History

Year Work Type Comment
1996 Airborne Geophysics: Magnetic Also radiometric survey. Survey was flown over most of the Coal Creek Inlier and included this occurrence, although subsequent ground followup was focused to the south and east.
1975 Drilling: Diamond Four holes, 494.7 m.
1975 Geochemistry: Soil
1975 Geology: Regional Bedrock Mapping
1975 Other: Prospecting

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup: Wernecke
Group/Suite: Gillespie Lake
Formation:
Member:
Terrane: Laurentia
Period Max: Statherian
Age Max: 1700 MA
Period Min: Statherian
Age Min: 1600 MA
Rock Major: shale
Rock Minor: dolomite
Reference: Thompson et al. (1994) - GSC OF 2849
Geological Unit (1M): lPG
Geological Unit (250K): lPG

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
094354 2002 2002 Geological Reconnaissance, Rock Geochemical Sampling Program and Gravity Survey on the MONSTER Property Rock - Geochemistry, Bedrock Mapping - Geology, Gravity Survey - Ground Geophysics, Petrographic - Lab Work/Physical Studies, Prospecting - Other
093600 1996 Logistics Report for a Helicopter Magneitc and Gamma-Ray Spectrometer Survey of the MONSTER Property Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics
061483 1975 1975 Diamond Drilling on the TART Claims Diamond - Drilling, Drill Core - Geochemistry 4 492.25

Related References

Number Title Page(s) Document Type
ARMC007845 Map - Reef project - Tart group Geoscience Map (General)
ARMC007854 Map - Tart claims group Geoscience Map (Geological - Bedrock)
ARMC013220 Orthophoto map - Tart claim - Job no. 06153-2 Geoscience Map (General)
ARMC016782 Geochemical map - 116B/13 Geochemical Map
ARMC013221 A brief geological report on the Oz and Tart groups Report
ARMC011463 Geochemistry results map - Tart claim group - Map HF9-150 Geochemical Map
ARMC011450 Geochemical zinc contours map - Tart claim group Geochemical Map
ARMC018621 Field notes - Reconnaissance contour geochem lines - Kiwi, Tart, Oz, Will Miscellaneous Company Documents
ARMC011462 Geology map - Reef project - Tart claim group Geoscience Map (Geological - Bedrock)
ARMC011494 Geochemistry map - Tart group - Reef project Geochemical Map
ARMC011451 Geochemical copper contours map - Tart claim group Geochemical Map
ARMC011449 Geochemical lead contours map - Tart claim group Geochemical Map
1985Delaney The Middle Proterozoic Wernecke Supergroup, Wernecke Mountains, Yukon Territory PhD Thesis
1992-1 Geology of Ogilvie Mountains Breccias, Coal Creek Inlier (116B/11, 13, 14) Yukon Territory Open File (Geological - Bedrock)
2003-9(D) Yukon Digital Geology (version 2) Open File (Geological - Bedrock)
Citations

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