Quadrangle map, 1:250,000-scale | MK |
---|---|
Quadrangle map, 1:63,360-scale | D-3 |
Latitude | 58.8469 |
Longitude | -154.9707 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is on an unnamed stream east of the Walatka Mountains that flows north into Kulik Lake. The site is at an elevation of about 2,000 feet in the SW1/4 sec. 29, T. 15 S., R. 34 W., of the Seward Meridian; it is accurate to within one-half mile. |
Geologic descriptionThis occurrence consists of auriferous, sulfide-bearing, sheeted quartz veins up to 1.2 inches thick in Jurassic granodiorite. The veins contain fine-grained pyrite and minor tourmaline. Samples taken by Church, Riehle, and Goldfarb (1993) contain up to 4.4 parts per million (ppm) gold but most samples have 50 to 450 parts per billion gold, and up to 20,000 ppm copper, 700 ppm cobalt, 200 ppm silver, and 100 ppm lead. | |
Geologic map unit | (-154.972772891652, 58.8462061516285) |
---|---|
Mineral deposit model | Polymetallic vein, epithermal gold vein (Cox and Singer, 1986; model 22c, 25). |
Mineral deposit model number | 22c, 25 |
Age of mineralization | Jurassic or younger; the sheeted quartz veins cut Jurassic granodiorite. |
Workings or exploration | Apparently only limited rock samples by government geologists. |
---|---|
Indication of production | None |
References | |
Reporters | F.H. Wilson, S.E. Church, and D.P. Bickerstaff (U.S. Geological Survey) |
---|---|
Last report date | 8/31/2005 |