Location: The placer mine is on the north side of Slate Creek about one-half mile west of the mouth of Miller Gulch (see MH296) in the NE1/4 section 22, T. 20 S., R. 15 E., Fairbanks Meridian. The location for this record is based on an earlier compilation for the Mount Hayes quadrangle (W.J. Nokleberg, written communication, 1996). The accuracy of location is uncertain.
Geology: Platinum was produced during 1940 as a byproduct of gold prospecting in Treasure Gulch (Smith, 1942 [B 933-A]). At the mine site, minor gulches cut auriferous Pleistocene bench gravels formed when the mouth of Slate Creek was dammed by an ancestral Chistochina Glacier (Rose, 1967). The placer deposit on Treasure Gulch may be an alluvial reconcentration of gold and platinum contained in weakly metalliferous bench gravel. The deposit is probably of Holocene age.
Workings: Small-scale prospect workings.
Age: Holocene.
Production: Unknown amount of platinum recovered in 1940 (Smith, 1942 [B 933-A]).

Commodities (Major) - Au; (Minor) - Platinum group elements (PGE)
Development Status: Undetermined
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Native Gold

1 valid mineral.

Detailed Mineral List:

ⓘ Native Gold

Formula: Au

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 1 - Elements
ⓘ	Native Gold	1.AA.05	Au

List of minerals for each chemical element

Au	Gold
Au	ⓘ Native Gold	Au

Other Databases

Link to USGS - Alaska:	MH297

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Wrangellia DomainVolcanic 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

Rose, A.W., 1967, Geology of the upper Chistochina River area, Mount Hayes quadrangle, Alaska: Alaska Division of Mines and Minerals Geologic Report 28, 41 p., 2 maps, scale 1:40,000. Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.

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