Quadrangle map, 1:250,000-scale | TK |
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Quadrangle map, 1:63,360-scale | D-2 |
Latitude | 62.847 |
Longitude | -147.7066 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is at an elevation of about 3,800 feet, about 3.5 miles west-northwest of the low pass between Jay Creek and Coal Creek It is near the center of sec. 23, T. 32 N., R. 9 E., Seward Meridian. The location is accurate. This is locality B34 of Kurtak and others (1992). |
Geologic descriptionThe rocks in the vicinity of this occurrence are chlorite schist, greenstone, and foliated granite (Kurtak and others, 1992). The greenstone is silicified and iron-stained; the chlorite schist is iron-stained. The occurrence consists of quartz float that contains malachite, fluorite, and epidote (Kurtak and others, 1992). A sample of malachite-bearing quartz contains 161 parts per million copper. | |
Geologic map unit | (-147.708834290918, 62.8465421416022) |
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Mineral deposit model | Porphyry Cu-Au? or Basaltic Cu? (Cox and Singer, 1986; model 20c? or 23?) |
Mineral deposit model number | 20c? or 23? |
Alteration of deposit | Oxidation of copper mineral. The greenstone is silicified and iron-stained; the chlorite schist is iron-stained. |
Workings or exploration | Only limited surface sampling by U.S. Bureau of Mines (Kurtak and others, 1992). |
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Indication of production | None |
Additional commentsMAS/MILS number 20760094. |
References | |
Reporters | R.K. Rogers (U. S. Geological Survey contractor) |
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Last report date | 10/4/2002 |