|Quadrangle map, 1:250,000-scale||NM|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Nelson Gulch is the unnamed creek about a half mile south of Rocky Mountain Creek (NM082) near the center of section 29, T. 8 S., R. 32 W., Kateel River Meridian. It is an east tributary to upper Nome River. It is locality 108 of Cobb (1972 [MF 463], 1978 [OFR 78-93]) and is included with other nearby tungsten occurrences as part of locality 20 of Cobb (1975).|
Geologic descriptionNelson Gulch was placer mined during and possibly after WW II; both gold and scheelite were recovered. An attempt to mine the gulch for scheelite during World War II was reportedly unsuccessful, but Coats (1944) thought that the area between Nelson Gulch and Rocky Mountain Creek had potential for significant scheelite deposits; he identified a scheelite-bearing quartz vein in the headwaters of Nelson Gulch (NM081). Bedrock in the Rocky Mountain Creek drainage is a metasedimentary schist and marble sequence (Hummel, 1962 [MF 248]).
|Geologic map unit||(-165.202618473625, 64.7632423378388)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene.|
|Workings or exploration||The gulch was explored and mined on a small scale during World War II and possibly after.|
|Indication of production||Yes; small|
|MRDS Number||A012915; D002570|
Coats, R.R., 1944, Lode scheelite occurrences of the Nome area: U.S. Geological Survey Open-File Report 17, 6 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.
Cobb, E.H., 1975, Tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resource Map MR-66, 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 Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.
|Reporters||C.C. Hawley and Travis L. Hudson|
|Last report date||10/22/1999|