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Occurrence Details


Occurrence Number
115G 074
Occurrence Name
Alaskite
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Secondary Commodities: copper, molybdenum
Deposit Type(s): Porphyry Mo (Low F-Type)
Location(s): 61.545830 N, -138.183890 W
NTS Mapsheet(s): 115G09
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Meloy cl 1-2 (69091) in Aug/54 by J. Meloy.
Conwest staked Anna cl 1-36 (Y58689) about 1.6 km to the southeast in Sep/70 and performed limited mapping and geochemical sampling.
N. Blanchard staked Hank cl 1-48 (YA48514) southwest of the occurrence in Mar/80.

Capsule Geology

The area is located south of Talbot Creek and east of Alaskite Creek approximately 30 km east from the northern end of the Talbot Arm of Kluane Lake. The area was mapped in the 1960¿s by Muller (1967) of the Geological Survey of Canada. S. Israel (2004) of the Yukon Geological Survey published a geological compilation of southwest Yukon which covered this area.
The occurrence occurs near the contact between metamorphic rocks assigned to the Yukon- Tanana Terrane and granodiorite assigned to the Early Tertiary Ruby Range Batholith. Information is limited however geological compilations by Israel and others suggests that the metamorphic rocks consist of quartzite, schist, metaconglomerate and meta grit tentatively assigned to the Devonian to Mississippian and (?) older Nasina Assemblage. The metamorphic rocks are intruded by the Ruby Range Batholith.
The occurrence is centered over a gossanous zone located near the contact between the metamorphic rocks and the intruding batholith. Although no assessment or other exploration records can be found it is believed that Conwest Exploration¿s geochemical sampling program returned a weak copper and molybdenum response. Follow-up exploration failed to locate any mineralization.

References

CONWEST EXPLORATION COMPANY LTD, Annual Report 1969, p. 5; 1970 p. 5.

GORDEY, S.P. AND MAKEPEACE, A.J. 2003: Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open File 1749 and Yukon Geological Survey, Open File 2003-9 (D).

ISREAL, S., 2004. Geology of Southwestern Yukon (1:250 000 scale). Yukon Geological Survey, Open File 2004-16.

MULLER, J.E. 1967. Kluane Lake map-area, Yukon Territory (115G, 115F E ½); Geological Survey of Canada, Memoir 340, 137 p.

Location Map

Last Updated: Sep 15, 2011

Work History

Year Work Type Comment
1970 Geology: Bedrock Mapping
1970 Other

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup:
Group/Suite: Finlayson
Formation:
Member: meta-siliclastic
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 375 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: psammitic schist
Rock Minor: pelitic schist
Reference: Israel et al. (2011) - YGS OF 2011-2
Geological Unit (1M): DMF
Geological Unit (250K): DMF3

Related References

Number Title Page(s) Document Type
ARMC013075 Geological and geochemical reconnaissance - Talbot prospects - Kluane Lake area Geochemical Map
ARMC016255 Geochemistry: values map - Talbot Creek area - Figure 8 Geochemical Map
ARMC013074 Reconnaissance sampling map - Groups A, B & K - Sheet 115-G-9 - Talbot prospects - Kluane Lake area Geochemical Map
Citations

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