Geology and geochemistry of hydrothermal alteration, eastern portion of the North Santiam mining area
The Ruth Mine is a base-metal vein deposit near the eastern margin of a reported porphyry copper deposit in the Western Cascade Range in Oregon. Uplift of the Western Cascade Range has resulted in a deeply dissected terrain in which more than a kilometer of the stratigraphy overlying the porphyry-st...
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| Format: | Others |
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PDXScholar
1985
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| Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/3582 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=4591&context=open_access_etds |