|Quadrangle map, 1:250,000-scale||CA|
|Quadrangle map, 1:63,360-scale||C-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 450 feet, on an unnamed tributary of Quartz Creek between Deer and Buck Creeks. The map site is in section 18, T. 2 N., R. 13 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), location 4, and Miller and Elliott (1969), figure 2, location 7.|
Geologic descriptionThis occurrence consists of a calcite veinlet containing minor galena. The veinlet cuts altered Jurassic-Cretaceous andesite near its contact with quartz monzonite of the Cretaceous Quartz Creek pluton. A grab sample from this location contained: 300 ppm Pb and a trace Ag (Miller and Elliott, 1969).
|Geologic map unit||(-161.432652436176, 65.5693273443577)|
|Mineral deposit model||Galena in calcite vein.|
|Age of mineralization||Late Cretaceous.|
|Alteration of deposit||Hydrothermal.|
|Workings or exploration||The area has been mapped and examined by the U.S. Geological Survey and various exploration companies.|
|Indication of production||None|
Additional commentsThis site is one of numerous occurrences of argentiferous galena, sphalerite, pyrite and arsenopyrite in an 18-mile-long, 2- to 5-mile-wide zone of altered andesite surrounding the Quartz Creek quartz monzonite pluton. The altered zone trends N 15 W, across the drainage basins of Quartz Creek and the Kiwalik River, parallel to prominent lineaments in the area.
Cobb, E.H., 1972, Metallic mineral resources map of the Candle Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-389, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Candle, Holy Cross, Norton Bay, Nulato, and Unalakleet quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-866, 102 p.
|Reporters||Anita Williams (Anchorage, AK)|
|Last report date||1/12/2000|