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Occurrence Details


Occurrence Number
105B 106
Occurrence Name
Ursus
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: tungsten, tin
Deposit Type(s): Skarn W
Location(s): 60.4675 N, -130.343330 W
NTS Mapsheet(s): 105B08
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Ursus cl (YA56148) in Aug/80 by a joint venture between SEREM L and Samin Can Inc, which performed mapping, mag and geochem surveys in 1980 and 1981 and hand trenching in 1981.

Capsule Geology

The property is underlain by Cretaceous pegmatitic biotite quartz monzonite to granodiorite to the north intruding Lower Cambrian quartz-biotite schist and minor quartzite, recrystallized limestone and garnet skarn to the south. A number of pan concentrates from the property contain cassiterite and these return values of up to 15 500 ppm Sn. The highest rock assay was 0.07% Sn from an altered pegmatite. Minor scheelite was found in the skarns. One specimen of tourmaline and wolframite from a quartz vein in the intrusion assayed 0.52% WO3.

References

SEREM LTD, Oct/81. Assessment Report #090876 by M. Stammers.

YUKON EXPLORATION AND GEOLOGY 1981, p. 103.

Location Map

Last Updated: Sep 5, 2018

Work History

Year Work Type Comment
1981 Geochemistry: Soil Also silt sampling.
1981 Geology: Bedrock Mapping
1981 Ground Geophysics: Magnetics
1981 Trenching: Hand
1980 Geochemistry: Soil Also silt sampling.
1980 Geology: Bedrock Mapping
1980 Ground Geophysics: Magnetics

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup: Windermere
Group/Suite: Ingenika
Formation: Swannell/Tsaydiz
Member:
Terrane: Cassiar
Period Max: Cryogenian
Age Max: 725 MA
Period Min: Ediacaran
Age Min: 550 MA
Rock Major: shale/sandstone/grit/quartzite
Rock Minor: marble/calc-silicate
Reference: Amakun & Lowey (1987) - YGS OF 1987-1
Geological Unit (1M): PCI
Geological Unit (250K): PCI1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
090876 1981 Assessment Report Geological, Geochemical and Geophysical Report on the Ursus 1-164 Mineral Claims Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Magnetics - Ground Geophysics

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