|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||The Snow Slide prospect is at an elevation of about 600 feet, about 0.15 mile north of the north head of Baker Cove in Goulding Harbor. The prospect is 0.5 mile west of the center of sec. 18, T. 47 S., R. 57 E. It is location P-47 of Bittenbender and others, (1999), location 19 of Cobb (1972, 1977), and MAS no. 0021140107 (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 the Freeburn assemblage, a collage of kilometer-scale, fault-bounded, lozenge-shaped blocks of Cretaceous and Cretaceous(?) metasedimentary and metavolcanic rocks. The rocks are cut by high-angle, mainly northwest-striking faults, one of which transects the prospect area.Cobb (1972, 1978), citing Overbeck (1919), describes the prospect as a 6-foot zone of quartzose greenschist containing pyrite, chalcopyrite, and possibly some pyrrhotite. Two claims were located in 1916. A 171-foot tunnel driven to intersect the zone at depth did not reach it.
|Geologic map unit||(-136.253630077602, 57.7941250087391)|
|Mineral deposit model||Basaltic copper? (Cox and Singer, 1986; model 23).|
|Mineral deposit model number||23?|
|Workings or exploration||Two claims were located in 1916. A 171-foot tunnel driven to intersect the mineralized zone at depth did not reach it.|
|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.
Overbeck, R.M., 1919, Geology and mineral resources of the west coast of Chichagof Island: U.S. Geological Survey Bulletin 692-B, p. 91-136.
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|