|Quadrangle map, 1:250,000-scale||VA|
|Quadrangle map, 1:63,360-scale||B-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Winkler and others (1981 [OFR 80-892-B]) show placer mining or prospecting on about 3 miles of Quartz Creek between the elevations of about 2,300 feet and 2,950 feet. The map site is on Quartz Creek at the mouth of Bear Creek, in the NE1/4 section 28, T. 4 S., R. 1 W., of the Copper River Meridian. This is locality 89 of Cobb and Matson (1972) and locality 69 of Winkler and others (1981 [OFR 80-892-B]).|
Geologic descriptionShallow placer gold deposits were prospected and mined at scattered locations along Quartz Creek in 1898 and 1899 (Schrader and Spencer, 1901). Most of the mining was near the mouth of Bear Creek (Moffit, 1918). Bedrock in the general area is greenschist-facies metaflysch of the Late Cretaceous Valdez Group (Winkler and others, 1981 [OFR 80-892-A]). Gold-bearing quartz veins are widespread through the Valdez Group in the southern Valdez quadrangle (Cobb and Matson, 1972).
|Geologic map unit||(-145.406000890326, 61.4962002932522)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene.|
|Workings or exploration||Small-scale surface prospecting and mining occurred as early as 1898 and 1899 on Quartz Creek (Schrader and Spencer, 1901).|
|Indication of production||Yes; small|
|Production notes||Only about 50 to 60 ounces of gold were produced during early mining and the deposits were supposedly mined out (Schrader and Spencer, 1901; Moffit, 1918).|
Cobb, E.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Valdez quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-438, 1 sheet, scale 1:250,000.
Moffit, F.H., 1918, Mining in the lower Copper River basin: U.S. Geological Survey Bulletin 662-C, p. 155-182.
Schrader, F.C., and Spencer, A.C., 1901, The geology and mineral resources of a portion of the Copper River District, Alaska: U.S. Geological Survey, 100 p., 5 sheets.
Winkler, G.R., Miller, R.J., MacKevett, E.M., Jr., and Holloway, C.D., 1981, Map and summary table describing mineral deposits in the Valdez quadrangle, southern Alaska: U.S. Geological Survey Open-File Report 80-892-B, 2 sheets, scale l:250,000.
|Reporters||Travis L. Hudson|
|Last report date||12/14/2001|