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Tin Mineralization of the Won Prospect, West-Central Alaska.

Authors
Burleigh-RE
Source
NTIS: PB 92-220623 Available for Reference At Bureau Libraries :21 pages
Link
NIOSHTIC No.
10011666
Abstract
The Won prospect was investigated by the Bureau of Mines in July 1989 and June 1990 as part of an ongoing investigation of the tin resources potential in Alaska. The Won prospect is located 40 miles north of McGrath, Alaska. The tin deposits at the Won Prospect are associated with several northwest-trending, moderately dipping breccia-vein structures developed in tourmaline- and quartz-altered hornfels. Tin occurs in brecciated hornfels with cassiterite matrix, as cassiterite druse on fracture surfaces of open-spaced, crackle breccia, and as disseminated grains in quartz veins containing minor silver, arsenic, copper, antimony, and zinc values. Based upon limited sampling, an estimated combined tin resource of approximately 25.3 M lb tin is indicated for two of the principal breccia structures at the Won Prospect--the Dog Day and south veins. Additionally, 7,700 linear feet of tin-mineralized breccia vein structure can be estimated from projections of other individual breccia vein occurrences.
Publication Date
19920101
Document Type
CP;
Fiscal Year
1992
NTIS Accession No.
PB92-220623
NTIS Price
A03
Identifying No.
OFR 85-92
NIOSH Division
AFOC;
Source Name
NTIS: PB 92-220623; Available for Reference At Bureau Libraries
State
AK;
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