|Quadrangle map, 1:250,000-scale||NM|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Tomboy Creek is an old name for a north tributary of Fairview Creek (NM007); this name is not shown on the current USGS topographic map of the area. The confluence of Tomboy Creek and Fairview Creek is about 4 miles above the mouth of the Fairview Creek on a coastal lagoon along the the Bering Sea. The mine location is 0.6 miles upstream of the mouth of Tomboy Creek and about 4.5 miles southwest of where the Nome-Teller road crosses the Feather River. The mine is locality 1 of Hummel (1975) and locality 58 of Cobb (1972 [MF463], 1978 [OFR 78-93]).|
Geologic descriptionPlacer gold mining took place on Tomboy Creek in 1902; the U.S. Geological Survey obtained pans of about 1.5 cents or 2.25 dollars per cubic yard from decomposed schist bedrock (Collier and others, 1908, p. 219). The overlying several feet of gravel contains numerous pebbles and cobbles of granitic bedrock reworked from glacial deposits that originated in the Kigluaik Mountains. The source of the gold is unknown. The area to the north of the mine is extensively covered by glacial deposits. Near the mine, Sainsbury, Smith, and Kachadoorian (1972) mapped a strong northwest-trending fault, which separates graphitic schist to the south from chloritic, metavolcanic rocks near this mine.
|Geologic map unit||(-166.233231597974, 64.8048250074168)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Surface workings only; small-scale mining by hand in 1902.|
|Indication of production||Yes; small|
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., 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.
Collier, A.J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.
Hummel, C.L., 1975, Mineral deposits and occurrences, and associated altered rocks in southwest Seward Peninsula, western Alaska: U.S. Geological Survey Open-File Report 75-2, 1 sheet, scale 1:125,000.
|Reporters||C.C. Hawley and Travis L. Hudson|
|Last report date||10/22/1999|