|Quadrangle map, 1:250,000-scale||LH|
|Quadrangle map, 1:63,360-scale||A-8|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Drainages in a several-square-mile area northwest of Sparrevohn Air Force Station contain detrital gold (Eppinger, 1993). The map site is at an elevation of 1,250 feet on one of the drainages flowing northwest from the Sparrevohn uplands in the SE1/4 section 15, T 12 N, R 36 W, of the Seward Meridian. The map site is chosen to represent the general area of gold occurrences.|
Geologic descriptionPan concentrates from several drainages in this area contain detrital gold, and one contains gold and cinnabar (Eppinger, 1993). Most of the gold is well-rounded and flat, except for that in the one sample that contains cinnabar. Bedrock in the area is dominantly Cretaceous clastic sedimentary rocks (Eppinger, 1993).
|Geologic map unit||(-155.641387035418, 61.124313295914)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986, model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Indication of production||None|
Eppinger, R.G., 1993, Gold and cinnabar in heavy-mineral concentrates from stream-sediment samples collected from the western half of the Lime Hills 1 degree x 3 degree quadrangle, Alaska, in Dusel-Bacon, Cynthia, and Till, A.B., eds., Geologic studies in Alaska by the U.S. Geological Survey, 1992: U.S. Geological Survey Bulletin 2068, p. 91-100.
|Reporters||Travis L. Hudson and Madelyn A. Millholland|
|Last report date||6/10/2001|