|Quadrangle map, 1:250,000-scale||CA|
|Quadrangle map, 1:63,360-scale||B-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The occurrence is located 35 miles southeast of Candle and 1.9 miles southwest of peak 1680 on Weather Ridge. This is in section 25, T. 1 N., R. 14 W., of the Kateel River Meridian. Miller and Elliot (1969), figure 2, sample location 37.|
Geologic descriptionThis occurrence is located adjacent to the mid-Cretaceous Quartz Creek quartz monzonite, a hook-shaped pluton that intrudes Jurassic-Cretaceous andesitic volcanic rocks. The pluton is surrounded by a N 15 W-trending alteration zone about 18 miles long and 2 to 5 miles wide. The altered volcanic rocks are marked by carbonate-quartz replacement, and possibly by tourmaline. A sample of gossan at the contact between quartz monzonite and andesite contained 1 ppm Au, 3,000 ppm As, 300 ppm Cu and 150 ppm Pb (Miller and Elliott, 1969, location 37).
|Geologic map unit||(-161.462641111877, 65.4493234298134)|
|Mineral deposit model||Sulfides in altered andesite.|
|Age of mineralization||Mid-Cretaceous or younger.|
|Alteration of deposit||Carbonate-quartz replacement and tourmaline?|
|Workings or exploration||The area has been mapped by the U.S. Geological Survey and examined by 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.
|Reporters||Anita Williams (Anchorage, AK)|
|Last report date||1/12/2000|