Quadrangle map, 1:250,000-scale | TK |
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Quadrangle map, 1:63,360-scale | D-5 |
Latitude | 62.8226 |
Longitude | -149.2926 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is at an elevation of about 1,200 feet in Devils Canyon of the Susitna River. It is on the north wall of the canyon near the tip of a prominent bend in the river in the NE1/4 sec. 32, T. 32 N., R. 1 E., Seward Meridian. The location is accurate to within 1/2 mile. |
Geologic descriptionThis rocks in the area are dark gray to black argillite, lithic graywacke, and polymictic pebble conglomerate, with a few thin beds of chert and limestone (Kurtak and others, 1992). An iron-stained rhyolite dike cuts silicified and pyrite-bearing argillite. Selected samples contain up to 2 parts per million silver, 209 parts per million copper, and 205 parts per million zinc (Balen, 1990). | |
Geologic map unit | (-149.294859404446, 62.8221179073885) |
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Mineral deposit model | Polymetallic vein? (Cox and Singer, 1986; model 22c?) |
Mineral deposit model number | 22c? |
Alteration of deposit | Iron-oxides and silicification. |
Workings or exploration | Only rock sampling by U.S. Bureau of Mines (Balen, 1990). |
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Indication of production | None |
Additional commentsMAS/MILS number 20760107. |
MRDS Number | A106273 |
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References | |
Reporters | R.K. Rogers (U. S. Geological Survey contractor) |
Last report date | 9/30/2002 |