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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Aug-2014 by Garry J. Payie (GJP)

Summary Help Help

NMI 104K6 Mo3
Name WRIGHT GLACIER Mining Division Atlin
BCGS Map 104K043
Status Showing NTS Map 104K06W
Latitude 058º 27' 58'' UTM 08 (NAD 83)
Longitude 133º 25' 29'' Northing 6481682
Easting 591895
Commodities Molybdenum, Zinc Deposit Types L05 : Porphyry Mo (Low F- type)
Tectonic Belt Coast Crystalline Terrane Stikine, Plutonic Rocks
Capsule Geology

Several tonnes of molybdenite-bearing float occur on terminal and medial moraines, on the surface of an active glacier below the Mount Ogden deposit (MINFILE 104K 013 and 104K 047). The molybdenite occurs in alaskite boulders up to 2.0 metres across. The boulders are porphyritic alaskite with prominent quartz phenocrysts and less prominent plagioclase phenocrysts in a groundmass dominated by quartz and feldspars. The boulders contain veins at random orientations containing quartz and/or molybdenite.

A molybdenum occurrence is located here on GSC Map 1262A. The host rocks are of an Upper Paleozoic Stikine Assemblage sequence of metamorphics which include Permian limestones, dolomitic limestones with chert and fine-grained clastic sediments and intercalated volcanics. These rocks are crosscut by a northeast trending, felsite dike swarm of the Tertiary Sloko-Hyder plutonic suite. Only minor molybdenum mineralization is reported to occur within the dikes and metasediments on the Mount Ogden Moly-Taku property. Molybdenite, sphalerite, and large-scale pyritization were first noted in the area by a Geological Survey of Canada field party under the leadership of J.G. Souther, in the period of 1958-1960.

In the early to mid 2000s, the Wright Glacier area was staked as part of the Taku property owned by Optima Minerals Inc. The showing was not visited by Optima Minerals.

Bibliography
EMPR ASS RPT 383, 6639, 7175, 8433, 29049
GSC MAP 6-1960; 931A; *1262A
GSC MEM 248; *362

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