Platinum Creek Platinum Placer

The Platinum Creek Platinum Placer is a pge mine located in Alaska at an elevation of 98 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Platinum Creek Platinum Placer
Secondary: Claims: Discovery
Secondary: 1b-5b
Secondary: 1b R.L.B
Secondary: 2b R.L.B.

Commodity

Primary: PGE
Secondary: Gold
Tertiary: Chromium

Location

State: Alaska
District: Goodnews Bay

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1927
Discovery Year: 1927
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene

Analytical Data

Not available

Materials

Gangue: Ilmenite
Unknown: Chromite

Comments

Comment (Deposit): PLACER CONSISTS OF ABOUT 12 FT. THICK SUBROUNDED TO SUBANGULAR GRAVELS, OVERLAIN BY 3 FT. OF MOSS AND TURF. GRAVEL AVERAGES 8-12 IN. IN DIAMETER NEAR FOX GULCH, 5-6 IN. IN DIA. DOWNSTREAM, WITH BOULDERS UP TO 3 FT. DIA.. PLATINUM METALS FOUND ON SURFACE AND IN CREVICES OF BEDROCK, WITH SOME PRESENT IN LOWER 2-3 FT. OF GRAVEL. PAYSTREAK ON UPPER PORTION OF CREEK IS 100-200 FT. WIDE. DOWNSTREAM FROM SQUIRREL CREEK, TWO PAYSTREAKS PRESENT. PRIMARY ONE (80% OF PGM) IS FROM SQUIRREL CREEK, OTHER ONE FROM UPPER PLATINUM CREEK. WIDTH OF PAYSTREAK IN LOWER PLATINUM CREEK IS 120-400 FT.. PGM NOT FOUND ABOVE FOX GULCH ON PLATINUM CREEK.

Comment (Workings): OPEN CUTS FROM CONFLUENCE WITH SALMON RIVER TO HEAD OF FOX GULCH FROM DRAGLINE EXCAVATOR.

Comment (Geology): MAJOR.UNITS: BEDROCK CONSISTS OF UPPER PALEOZOIC (?) SEDIMENTARY ROCKS. ; REG.COM: SOURCE OF PGM IS ULTRAMAFIC ROCKS OF GOODNEWS BAY ULTRAMAFIC COMPLEX ON RED MTN.. PLACER MATERIAL TRANSPORTED TO PLATINUM CREEK BY FOX AND DRY GULCHES, AND SQUIRREL CREEK.

Comment (Development): MINED BY SMALL-SCALE METHODS 1927-34. 6 PLACER, 2 BENCH CLAIMS ESTABLISHED. MINED BETWEEN DRY GULCH AND HEAD OF FOX GULCH BY GOODNEWS BAY MINING CO. USING DRAGLINE EXCAVATOR FROM 1938-41. DOWNSTREAM PORTION MINED FROM 1968 ON, USING DRAGLINE.

Comment (Deposit): STREAM GRADIENT 100 FT/MI. TRIBUTARY OF SALMON RIVER. GOODNEWS PLATINUM CO. IS ONLY U.S. MINE WHOSE PRIMARY COMMODITY IS PGM. BECAUSE PGM NOT FOUND ON PLATINUM CREEK ABOVE FOX GULCH, FOX GULCH CAN BE CONSIDERED HEADWATERS OF PLACER. ; INFO.SRC : 1 PUB LIT

Comment (Location): USGS MF-362, LOC. 12 (APPROXIMATE LOCATION). LOCATION IS AT CONFLUENCE OF PLATINUM CREEK AND SALMON RIVER. PLACER EXTENDS UPSTREAM ABOUT 1.5 MI TO FOX GULCH. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Comment (Commodity): GOLD IS ALIEN MINERAL INTRODUCED BY GLACIATION, PGM OFTEN INTERGROWN WITH CHROMITE

References

Reference (Other Database): BAG-MF-362-12

Reference (Deposit): USBM OFR 51-86, P. 2, 6-7 (1986)

Reference (Deposit): USGS B 918, P. 57-64 (1940)

Reference (Deposit): USGS OF 80-909, P. 24 (1980)

Reference (Deposit): USGS P 938, P. 4, 5, 23-26 (1976)

Reference (Deposit): USGS MF-362, LOC. 12 (1972)

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