Location: About 1 mile of Gold Run, a tributary of the Holokuk River, has been prospected for gold. The coordinates are at about the midpoint of this work. The prospect is at an elevation of about 450 feet in the SW1/4, sec. 8, T. 15 N., R. 51 W., of the Seward Meridian. The occurrence is locality 33 of Miller and others (1989).
Geology: Cady and others (1955) cite reports of placer gold prospects on Gold Run Creek. Morris Hofseth (oral communication, 1991) found a 5 ounce gold-quartz nugget while prospecting Gold Run in 1954. T.K. Bundtzen and M.L. Miller (unpublished data, 1999) have mapped an extensive felsic dike and sill swarm that cuts the Upper Cretaceous, Kuskokwim Group in the basin of Gold Run. Miller and others (2002) report that the nearby Buckstock pluton has a U-Pb age of 59.5 Ma. Similar igneous rocks are the sources of placer gold elsewhere in the Kuskokwim mineral belt (Bundtzen and Miller, 1997). Gray, Motooka, and Theodorakos (1997) reported that panned concentrate samples from Gold Run contained visible grains of gold and stibnite, and up to 20 percent scheelite.
Workings: There was surface sampling and prospecting here before 1951, during 1954, and from 1992 to 1994 (Miller and others, 2002). Gray, Motooka, and Theodorakos (1997) reported that panned-concentrate samples from Gold Run contained visible grains of gold and stibnite and up to 20 percent scheelite.
Age: Unknown, but probably Quaternary.
Production: Morris Hofseth (oral communication, 1991) found a 5 ounce gold-quartz nugget on Gold Run in 1954.

Commodities (Major) - Au
Development Status: No
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

Mineral List

ⓘ Quartz

1 valid mineral.

Detailed Mineral List:

ⓘ Quartz

Formula: SiO₂

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂

List of minerals for each chemical element

O	Oxygen
O	ⓘ Quartz	SiO₂
Si	Silicon
Si	ⓘ Quartz	SiO₂

Other Databases

Link to USGS - Alaska:	SM051

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Farewell buried DomainDomain
Koyukuk ArcsVolcanic Arc

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 242-286. Cady, W.M., Wallace, R.E., Hoare, J.M., and Webber, E.J., 1955, The central Kuskokwim region, Alaska: U.S. Geological Survey Professional Paper 268, 132 p. Cobb, E.H., 1972, Metallic mineral resources map of the Sleetmute quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-368, 1 sheet, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p. Gray, J.E., Motooka, Jerry, and Theodorakos, P.M., 1997, Areas favorable for metallic resources and newly discovered mineral occurrences in the Buckstock Mountains area, southwestern Alaska, in Dumoulin, J.A., and Gray, J.E., eds, Geologic Studies in Alaska by the U.S. Geological Survey in 1995: U.S. Geological Survey Professional Paper 1574, p. 111- 124. Miller, M.L., Belkin, H.E., Blodgett, R.B., Bundtzen, T.K., Cady, J.W., Goldfarb, R.J., Gray, J.E., McGimsey, R.G., and Simpson, S.L., 1989, Pre-field study and mineral resource assessment of the Sleetmute quadrangle, southwestern Alaska: U.S. Geological Survey Open-File Report 89-363, 115 p., 3 plates, scale 1:250,000. Miller, M.L., Bradley, D.C., Bundtzen, T.K., and McClelland, William, 2002, Late Cretaceous through Cenozoic strike-slip tectonics of southwestern Alaska: Journal of Geology, vol.110, p. 247-270.

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