Quadrangle map, 1:250,000-scale | SR |
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Quadrangle map, 1:63,360-scale | A-3 |
Latitude | 60.2228 |
Longitude | -147.8306 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | The occurrence is located on the northwest shore of Mummy Bay, 1.2 miles north-northwest of Oceanic seaplane base. It is in the NE1/4 section 35, T. 2 N., R. 9 E., of the Seward Meridian. This is location 248 of Tysdal (1978 [MF-880-A]) and location S-32 of Jansons and others (1984). This location is accurate to within a quarter of a mile. |
Geologic descriptionThe occurrence is hosted in sheared greenstone of the Orca Group of early Tertiary age (Nelson and others, 1985). Tysdal (1978 [MF-880-A]) reported iron- and malachite-stained sheared greenstone that contained 500 ppm copper, 300 ppm chrome, and 100 ppm zinc. No other information is published. | |
Geologic map unit | (-147.832661637671, 60.2222315848999) |
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Mineral deposit model | Cyprus massive sulfide (Cox and Singer, 1986; model 24a) |
Mineral deposit model number | 24a |
Age of mineralization | Tertiary or younger; the occurrence is in rocks of the Orca Group of Tertiary age. |
Alteration of deposit | Basalt altered to greenstone. |
Workings or exploration | Tysdal (1978 [MF-880-A]) reported iron- and malachite-stained sheared greenstone that contained 500 ppm copper, 300 ppm chrome, and 100 ppm zinc. No other information is published. |
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Indication of production | None |
MRDS Number | A010563 |
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References | |
Reporters | Jeff A. Huber and Carol S. Huber (Anchorage) |
Last report date | 3/9/2001 |