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Occurrence Details


Occurrence Number
105F 004
Occurrence Name
Gopher
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: gold, lead, molybdenum, silver, zinc
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 61.045830 N, -133.788610 W
NTS Mapsheet(s): 105F04
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

This area was extensively prospected and staked in the 1920's and an adit had been driven on this showing in 1934 when it was first visited by the GSC. The early claim records have not been found.
Staked by J. Mohagen in Aug/53 as Red cl (66549) and in Mar/65 as Gopher cl (92660), which were sold to Boswell River ML later in the year. Boswell performed mapping, geochem and geophysical surveys and limited hand trenching in 1966-68. Restaked as Bug cl (YA7996) in Aug/76 by Tintina Silver ML, and as Chess cl (YA48250) in Sep/79 by Golden Empire ML, which performed linecutting and trenched in 1980 and 1981 and mapping, geochem sampling and road construction in 1982.
Skagway Moly Inc added Moly cl (YA74202) to the west in Oct/81, changed its name to Shakwak ECL, and performed bulldozer trenching in 1982. Restaked as RG cl (YB24070) in Oct/88 by Dominion E Inc.
Restaked as Charm cl 1-16 (YB66577) by 13744 Yukon Inc in Feb/96.

Capsule Geology

Galena occurs in quartz lenses within a thin (1-2 m) dolomite horizon at the contact between a tuff unit to the south and quartz-sericite schist to the north that resembles the Klondike Schist of Palezoic age. The following assays have been reported:
Type
Width (cm)
Ag (g/t)
Pb (%)
Zn (%)
Au (g/t)
lens in dolomite
45.7
3 277.6
51.6
0.3
tr.
lens in dolomite
91.4
65.1
1.2
tr.
tr.
lens in dolomite
15.2
1 570.2
20.2
tr.
---
galena grab
---
5 406.7
81.5
tr.
0.34
quartz vein
61.0
195.4
6.8
0.1
tr.
quartz vein
61.0
75.4
1.5
---
---
quartz vein
40.6
325.7
4.3
---
---

The workings cover a strike length of about 180 m and EM surveys traced the structure for a further 305 m.
The Moly claims were staked to cover an occurrence of molybdenite in quartz feldspar porphyry dykes.

References

GEOLOGICAL SURVEY OF CANADA Paper 66-31 p. 60-62.

BOSWELL RIVER MINES LIMITED, 1966. Prospectus Report by P.H. Sevensma.

GEOLOGICAL SURVEY OF CANADA Memoir 203. p. 23-24.

SHAKWAK EXPLORATION COMPANY LIMITED, 1983. Prospectus Report.

Location Map

Last Updated: Sep 15, 2011

Work History

Year Work Type Comment
1982 Development, Surface: All Weather Road
1982 Geology: Bedrock Mapping
1982 Other
1982 Trenching: Mechanical
1981 Trenching
1980 Trenching
1968 Geology: Bedrock Mapping
1968 Other
1968 Trenching: Hand
1967 Geology: Bedrock Mapping
1967 Other
1967 Trenching: Hand
1966 Geology: Bedrock Mapping
1966 Other
1966 Trenching: Hand
1934 Other
1934 Other Adit driven between 1920 and 1934.

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup:
Group/Suite: Finlayson
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: quartzite/qt-ms-schist
Rock Minor: conglo/grit
Reference: Gordey & Stevens (1994) - GSC OF 2886
Geological Unit (1M): DMF
Geological Unit (250K): DMF3

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
093565 1996 Evaluation Survey of the Star 1-16, Mar 1-22 and Charm 1-16 Claims Rock - Geochemistry
060003 1969 Geochemical Survey, Assessment Work Report on theNW Claim group Silt - Geochemistry, Soil - Geochemistry
018619 1968 Geochemical Report; Fox and Star Claim Group Silt - Geochemistry, Soil - Geochemistry

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