Quadrangle map, 1:250,000-scale | TK |
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Quadrangle map, 1:63,360-scale | C-4 |
Latitude | 62.5043 |
Longitude | -148.7151 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is at an elevation of about 2,800 feet, 1 mile north of the Talkeetna River, near the center of the NE1/4 sec. 21, T. 28 N., R. 4 E., Seward Meridian. The location is accurate to within 1/4 mile. This is locality 45 of Csejtey and Miller (1978). |
Geologic descriptionThis occurrence consists of a small brecciated shear zone with pyrite, limonite, and malachite, in mafic metavolcanic rock (Csejtey and Miller, 1978). U.S. Geological Survey samples contain up to 10 parts per million silver, 70 parts per million nickel, 30 parts per million cobalt, and more than 20,000 parts per million copper (Miller and others, 1978). | |
Geologic map unit | (-148.717324463127, 62.5038174945563) |
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Mineral deposit model | Basaltic Cu? (Cox and Singer, 1986; model 23?) |
Mineral deposit model number | 23? |
Alteration of deposit | Oxidation of iron and copper minerals. |
Workings or exploration | Only rock samples collected by the U.S. Geological Survey (Miller and others, 1978). |
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Indication of production | None |
MRDS Number | A012167 |
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References | |
Reporters | R.K. Rogers (U. S. Geological Survey contractor) |
Last report date | 10/1/2002 |