|Quadrangle map, 1:250,000-scale||CV|
|Quadrangle map, 1:63,360-scale||D-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at about 200 ft. elevation on the lower part of the south fork of the Gravina River. It is in the NW1/4 sec. 23, T. 12 S., R. 4 W., of the Copper River Meridian. Accuracy of the location is within 2000 ft. Location corresponds to site C-55 in Jansons and others (1984).|
Geologic descriptionThis site is on a gravel bar in the Gravina River. Float samples from the area include altered and silicified felsic intrusive rocks containing chalcopyrite, pyrite, and scheelite. Analysis of one sample yielded 245 ppm W (Jansons and others, 1984).
|Geologic map unit||(-145.891985293092, 60.8194648519435)|
|Alteration of deposit||Silicification.|
|Workings or exploration||Area examined by the U.S. Bureau of Mines as part of a mineral evaluation of the Chugach National Forest. Analysis of one sample yielded 245 ppm W (Jansons and others, 1984).|
|Indication of production||None|
Additional commentsOccurrence is on Chugach National Forest land.
|Reporters||S.W. Nelson, Anchorage, AK|
|Last report date||6/10/2000|