Main commodities | Cu |
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Ore minerals | chalcopyrite; pyrite; pyrrhotite |
Gangue minerals | quartz |
Quadrangle map, 1:250,000-scale | BC |
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Quadrangle map, 1:63,360-scale | B-3 |
Latitude | 56.33 |
Longitude | -130.77 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | The approximate location of this occurrence is on the northwest bank of Unuk River about a mile below the Alaska-British Columbia boundary (Elliott and Koch, 1981, p. 8, loc. 13). The location is probably accurate to within about a quarter of a mile. |
Geologic descriptionThe country rocks in the general area of this occurrence are Mesozoic or Paleozoic metasedimentary rocks that locally include marble, and subordinate metavolcanic rocks (Elliott and Koch, 1981; Koch, 1996). The metamorphosed bedded rocks form a mile-wide septum between a stock of Eocene leucocratic quartz monzonite on the north, and a batholith of Tertiary or Cretaceous granodiorite and quartz diorite on the south. The mineral occurrence consists of pyrite, pyrrhotite, and chalcopyrite in a 2-foot thick quartz (?) vein (Wedow and others, 1952, p. 57). | |
Geologic map unit | (-130.771708409286, 56.3296605971794) |
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Mineral deposit model | Polymetallic vein (Cox and Singer, 1986; model 22c)? |
Mineral deposit model number | 22c? |
Indication of production | None |
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Additional commentsThis occurrence is in Misty Fiords National Monument. |
MRDS Number | A010217 |
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References | |
Reporters | H. C. Berg (Fullerton, California) |
Last report date | 5/17/1998 |