Gold Creek Prospect, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA i
Regional Level Types
Gold Creek Prospect Prospect
Yentna Mining District Mining District
Matanuska-Susitna Borough Borough
Alaska State
USA Country

Also see Cache Creek (TL029).
Location: C.C. Hawley and Associates, Inc. (1978, Fig. 4.2-B(3)) locate this prospect at the confluence of Gold Creek and Cache Creek in the northeast quarter of Section 15, T. 28 N., R. 9 W., of the Seward Meridian. Unpatented claims extend about 1 mile upstream from the confluence.
Geology: At the confluence of Gold Creek and Cache Creek gold occurs in Pleistocene stream placers that range from 2 to 6 feet thick and have a pay streak 20 feet wide. The headwaters of Gold Creek are underlain by Mesozoic slate (KJs) and the lower courses are underlain by Tertiary continental deposits of the Kenai Group (Reed and Nelson, 1980). Gold is found on the bedrock surface and inside crevices in the slate at the Tertiary-Mesozoic unconformity (Capps, 1913). The fineness of the gold from Gold Creek is 857.5 (Clark and Hawley, 1968). Also see Cache Creek (TL029).
Workings: The drainage has been prospected and mined by various small scale surface methods.
Age: Tertiary (Capps, 1913).

Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au-PGE (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

ⓘ 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:	TL036

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Farewell buried DomainDomain
Farewell ForedeepForedeep Basin
Susitna BasinBasin

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References

Brooks, A.H., 1914, Mineral resources of Alaska; report on progress of investigations in 1913: U.S. Geological Survey Bulletin 592, 413 p. C.C. Hawley and Associates, Inc., 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U.S. Bureau of Mines Open-File Report 24-78, 277 p., 12 sheets. Capps, S.R., 1912, Gold placers of the Yentna district: U.S. Geological Survey Bulletin 520-F, p. 174-200. Capps, S.R., 1913, The Yentna district, Alaska: U.S. Geological Survey Bulletin 534, 75 p. Capps, S.R., 1924, Geology and mineral resources of the region traversed by the Alaska Railroad: U.S. Geological Survey Bulletin 755-C, p. 73-150. Clark, A.L., and Hawley, C.C., 1968, Reconnaissance geology, mineral occurrences, and geochemical anomalies of the Yentna district, Alaska: U.S. Geological Survey Open-File Report 68-35, 64 p. Cobb, E.H., and Reed, B.L., 1980, Summaries of data on and lists of reference to metallic and selected nonmetallic mineral deposits in the Talkeetna quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-884, 106 p. MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000. Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle: U.S. Geological Survey Miscellaneous Investigations Map I-1174, 1 sheet, scale 1:250,000. Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.

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