|Quadrangle map, 1:250,000-scale||RB|
|Quadrangle map, 1:63,360-scale||A-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Meketchum Creek is location 26 of Cobb (1972; MF405). Meketchum Creek is a southwest-flowing tributary of the Sulatna River and is about 3 miles long. The placer ground extends for 3,000 feet upstream from the intersection of the winter trail and the light duty road marked on the Ruby A-5 quadrangle USGS topographic map (1952, minor revisions in 1973). This site corresponds to location 26 of Cobb (1972 [MF405]), and the coordinates are for the approximate center of the placer tailings, in section 11, T. 15 S., R. 17 E., Kateel River Meridian. The location is accurate.|
The bedrock under Meketchum Creek is greenstone (Mertie, 1936).
Gold was discovered in 1917, but it was too deep for easy recovery. Drift mining occurred from 1929 to at least 1934 (Mertie, 1936; Cobb and Chapman, 1981).The pay streak extends for about 3,000 feet along the creek and is distributed through 10 to 20 feet of gravel, beneath 60 to 70 feet of muck. Farther upstream the gravel is 2 to 3 feet thick, and the gold is on or near bedrock. The gravel is subangular greenstone, and much of the gold is coarse. The mean of two assays shows 918 parts gold per thousand and 76 parts silver per thousand (Mertie, 1936).
|Geologic map unit||(-155.439550000922, 64.2079376994388)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Drift mining took place along Meketchum Creek between 1929 and 1934 (Eberlein and others, 1977).|
|Indication of production||Yes; small|
Cobb, E.H., 1972, Metallic mineral resources map of the Ruby quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-405, 1 sheet, scale 1:250,000.
Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.
Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000.
Martin, G.C., 1919, Alaska Mining Industry in 1917: U.S. Geological Survey Bulletin 692-A, p. 11-42.
Mertie, J.B., Jr., 1936, Mineral deposits of the Ruby-Kuskokwim region, Alaska: U.S. Geological Survey Bulletin 864-C, p. 115-245.
|Reporters||C.E. Cameron (Alaska Division of Geological and Geophysical Surveys)|
|Last report date||3/22/2000|