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Occurrence Details


Occurrence Number
105B 089
Occurrence Name
Jennings
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: tungsten, molybdenum
Aliases: Carl, Eric, Hot, Tootsee
Deposit Type(s): Skarn W
Location(s): 60.015830 N, -130.119170 W
NTS Mapsheet(s): 105B01
Location Comments: .5 Kilometres
Hand Samples Available at YGS: Yes

Capsule

Work History

Staked as Hot cl (YA36789) in Jun-Nov/79 by Amax, which performed line cutting and mapping in 1979, mapping, geochemistry and geophysics in 1980. The property was transferred in 1983 to Canamax Res Inc, which explored with 2 holes (576 m) later in the year, soil sampling in 1984 and mapping and geochem sampling, plus airborne mag and VLF-EM surveys and road building. In Dec/94 diamond drill core drilled in 1984 at this property was acquired by the H.S. Bostock Core library in Whitehorse.
Fringe staking to the north included Eric cl (YA69871) in Mar/83 by Rialto Silver Res Inc and Carl cl (YA69717) in Mar/83 by W.E. England Drilling CL.
In 2006, the property was diamond-drilled (3 holes for a total of 1494 m) and an airborne geophysical survey was flown. In 2008, 8 diamond drillholes for a total of 4026 m were drilled on the property.

Capsule Geology

Disseminated scheelite is associated with a calc-silicate sequence developed in Upper Cambrian Kechika Group argillite and limestone near small dykes and porphyry bodies related to the Cretaceous Cassiar Batholith. The occurrence was found by stream panning and was also outlined by a GSC geochemical survey.
Stockwork porphyry-style molybdenum and tungsten mineralization occurs within a 6.5 km x 1.8 km wide area of hornfels. The mineralization is hosted in a northwest-tending southwest-dipping package of calc-silicate hornfels and skarn.
The 1980 geochem surveys outlined 8 soil anomalies averaging 100 ppm W. The 1983 holes intersected scheelite and molybdenite in green calc-silicate hornfels.
Diamond drilling in 2006 targeted the Central hornfels zone, a 1400 m2 tungsten soil anomaly with skarn mineralization. All three holes intersected fractured, veined, altered and mineralized hornfels and skarn cut by altered and mineralized quartz-feldspar porphyry dykes. Significant molybdenum values were realized through drilling in 2006: drillhole TR06-001 intersected 234.0 m of 0.092% MoS2 and 0.110% WO3.

References

AMAX OF CANADA LTD, 1980. Assessment Report *#090681 by G.W. Booth, A.C. Hitchins and J. Lebel.

BURKE, M., LEWIS, L. and TRAYNOR, S., 2009. Yukon hardrock mining, development and exploration overview. In: Yukon Exploration and Geology 2008, L.H. Weston, L.R. Blackburn and L.L. Lewis (eds.), Yukon Geological Survey, p.2-37.

CANAMAX RESOURCES INC, Mar/84. Assessment Report *#091528 by A.C. Hitchins.

GEOLOGICAL SURVEY OF CANADA, 1978. Open File 563, Map 43-1978.

LOWEY, G.W. AND LOWEY, J.F., 1986. Geology of the Spencer Creek (105 B 1) and Daughney Lake (105 B 2) map areas, Rancheria District, Southeast Yukon. DIAND Open File 1986-1, p. 94-95.

NORTH AMERICAN TUNGSTEN CORP. LTD., News Release, 31 Jan/2007;

YUKON GEOLOGY AND EXPLORATION 1979-80, p. 159; 1984, p. 52.

Location Map

Last Updated: Aug 13, 2018

Work History

Year Work Type Comment
2008 Drilling: Diamond Eight holes, 4,026 m.
2006 Airborne Geophysics: Magnetic
2006 Drilling: Diamond Three holes, 1,494 m.
1984 Airborne Geophysics: Magnetic Also EM survey.
1984 Development, Surface: Access Road
1984 Drilling: Diamond Diamond drill core was deposited at H.S. Bostock Core Library.
1984 Geochemistry: Soil
1984 Geology: Bedrock Mapping
1984 Other: Prospecting
1983 Drilling: Diamond Two holes, 576 m.
1980 Geochemistry: Soil
1980 Geology: Bedrock Mapping
1980 Ground Geophysics: Magnetics Also VLF-EM survey.
1979 Geology: Bedrock Mapping

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: Cassiar
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Kechika
Formation:
Member:
Terrane: Cassiar
Period Max: Cambrian
Age Max: 500 MA
Period Min: Ordovician
Age Min: 472 MA
Rock Major: slate/phyllite/limestone
Rock Minor: dolostone/basalt/tuff/flows/sills
Reference: Lowey & Lowey (1986) - YGS OF 1986-1
Geological Unit (1M): COK
Geological Unit (250K): COK1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096621 2013 2013 Summary Report on Metallurgical Study and Environmental Baseline Monitoring Program, Jennings Project Metallurgical Tests - Lab Work/Physical Studies, Environmental Assessment/Impact - Studies
096476 2012 2012 Report on Preliminary Mettallurgical Study, Jennings Project Metallurgical Tests - Lab Work/Physical Studies
096477 2012 2012 Summary Report on Baseline Monitoring Program, Jennings Project Water - Geochemistry, Environmental Assessment/Impact - Studies
094608 2006 2006 Airborne Geophysical Assessment Report Tootsee River Property Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics
091528 1983 1983 Drilling Assessment Report Diamond - Drilling 1 181
090681 1980 1980 Geological, Geochemical, Geophysical Assessment Report Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
TR-83-1 Tootsee 1983 NQ 26 0
TR-83-2 Tootsee 1983 NQ 44 0
TR-83-3 Tootsee 1983 NQ 22 2

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