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Undiscovered lode tin resources of the Seward Peninsula, Alaska

Economic Geology

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, , , , , and

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Abstract

This paper uses recent developments and geophysical data to estimate undiscovered lode tin resources on the Seward Peninsula of Alaska. The assessment is based on a three-step methodology that: 1) identifies the types of tin deposits that may be present in the region, 2) identifies the geophysical characteristics of unroofed granites and shallow granitoids, and 3) estimates, on the basis of various combinations of geologic and geophysical conditions, the number of undiscovered deposits present within or near exposed or concealed granite plutons. Results of simulation experiments indicate there is a 90% chance that the Seward Peninsula contains at least 51 000 metric tons, a 50% chance that it contains at least 390 000 metric tons, and a 10% chance if contains at least 1 100 000 metric tons of tin in undiscovered greisen, vein, and replacement deposits that have average grades of at least 0.5% tin. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Undiscovered lode tin resources of the Seward Peninsula, Alaska
Series title:
Economic Geology
Volume
84
Issue:
7
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Economic Geology
First page:
1936
Last page:
1947