|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||D-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is on the third small, east tributary upstream from the mouth of Iron Creek (SO127). This location is locality 4 of Cobb (1972, MF 445; 1978, OF 78-181). The original reference to this prospect is Cathcart (1922, p. 217) who notes that it is about a mile above Bertha Creek. It is very approximately located.|
Geologic descriptionA 3-foot-wide zone of silicified marble contains copper sulfide and some malachite stain (Cathcart, 1922). A nearby calcite vein is cut by quartz veinlets and pyrite is present in both. Bedrock is part of a lower Paleozoic metasedimentary assemblage (Till and others, 1986). Also see other copper prospects in the Iron Creek area such as SO124 and SO125.
|Geologic map unit||(-164.665629018944, 64.948255769365)|
|Mineral deposit model||Copper sulfides and malachite in quartz-rich rock.|
|Alteration of deposit||Oxidation and silicification.|
|Workings or exploration||This lode mineralization was exposed at the surface by a small open cut.|
|Indication of production||None|
Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722-F, p. 163-261.
Cobb, E.H., 1972, Metallic mineral resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|