Quadrangle map, 1:250,000-scale | MC |
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Quadrangle map, 1:63,360-scale | C-8 |
Latitude | 61.6896 |
Longitude | -143.8725 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is on the ridge crest at the head of the valley of Amy Creek. It is at an elevation of about 6,950 feet, 1,800 feet south-southeast of the center of section 13, T. 2 S., R. 8 E. of the Copper River Meridian. This is locality 166 of MacKevett (1976) and locality 14 of MacKevett and others (1978). The location is accurate to within about 100 feet. |
Geologic descriptionThis occurrence consists of a 3-meter-wide altered fault zone that cuts Triassic Nikolai Greenstone (MacKevett, 1976). A sample of the altered material contained 0.2 part per million (ppm) gold, 1.5 ppm silver, and 7,000 ppm copper. | |
Geologic map unit | (-143.874590976964, 61.689138112168) |
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Mineral deposit model | Vein? |
Age of mineralization | Triassic or younger based on the age of the host rock. |
Alteration of deposit | Oxidation? |
Workings or exploration | Only limited surface sampling. |
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Indication of production | None |
Additional commentsThe locality is in the Wrangell-Saint Elias National Park and Preserve. |
References | |
Reporters | Travis L. Hudson (Applied Geology, Inc.) |
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Last report date | 1/12/2003 |