|Quadrangle map, 1:250,000-scale||SI|
|Quadrangle map, 1:63,360-scale||D-7|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is at an elevation of about 1,500 feet, about 1.2 miles east of Lake Elfendahl and 0.6 mile north-northeast of the 2,605-foot peak of Mount Fritz. The prospect is just east of an unnamed lake in the NE1/4 sec. 36, T. 46 S., R. 56 E. It is location P-43 of Bittenbender and others (1999), location 14 of Cobb (1972, 1978), and MAS no. 0021140054 (U.S. Bureau of Land Management, 2002). The location is accurate within about 0.5 mile.|
Johnson and Karl (1985) map the rocks in the area of this prospect as Triassic greenstone intruded by Tertiary(?) granodiorite. The rocks are cut by high-angle faults that mainly strike northwest; the most prominent is the regional-scale Border Ranges Fault whose trace is about a mile southwest of the prospect.Cobb (1972, 1978), citing Rossman (1959), describes the prospect as a small quartz vein that contains pyrite, chalcopyrite, sphalerite, and galena. The vein is in a fault near the contact between greenstone and diorite. There are no assay data but Rossman speculated that the vein also contains gold.
|Geologic map unit||(-136.261031792644, 57.843220256451)|
|Mineral deposit model||Polymetallic vein (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c|
|Indication of production||Undetermined|
Additional commentsThe prospect is in West Chichagof-Yakobi Wilderness.
Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Sitka quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-467, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Sitka quadrangle: U.S. Geological Survey Open-File Report 78-450, 124 p.
Rossman, Darwin, 1959, Geology and ore deposits of the northwestern part of Chichagof Island, Alaska: U.S. Geological Survey Bulletin 1058-E, p. 139-216.
U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
|Reporters||H.C. Berg (U.S. Geological Survey)|
|Last report date||10/16/2004|