Nugget Creek Placer

The Nugget Creek Placer is a gold mine located in Alaska.

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: Nugget Creek Placer
Secondary: Nugget Bench High Channel Deposit

Commodity

Primary: Gold
Tertiary: Tin
Tertiary: Tungsten

Location

State: Alaska
District: Yentna/Cache Creek

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
Discovery Year: 1905
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

Not available

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Magnetite
Gangue: Pyrite
Gangue: Garnet
Gangue: Zircon
Unknown: Scheelite
Unknown: Cassiterite

Comments

Comment (Location): LOCATION IS NUGGET BENCH HIGH CHANNEL DEPOSIT, USBM OFR 24-78, FIG. 4.2-B(3) LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Geology): GEOL.COM: NUGGET BENCH HIGH CHANNEL IS CUT INTO ARGILLITE OF JURASSIC TO CRETACEOUS AGE; CHANNEL CAN BE PROJECTED BY MAGNETIC METHODS 400 FT BEYOND MINED SECTION ; MAJOR.UNITS: STREAM HEADS IN MESOZOIC SLATES AND GRAYWACKES CONTAINING AURIFEROUS VEIN QUARTZ; LOWER COURSE IN TERTIARY CONTINENTAL ROCKS OF KENAI GROUP. UPPER MEMBER OF KENAI FORMATION IS PREDOMINATELY A SANDY CONGLOMERATE OF WELL ROUNDED, WELL INDURATED COBBLES 2 TO 6 IN IN DIAMETER COMPOSED OF BLACK SILTSTONE, QUARTZ, QUARTZ MONZONITE, GRAYWACKE AND GREENISH WHITE FELDSPAR PORPHYRY; MINOR SILTY SANDSTONE WITH SEAMS OF CLAYSTONE AND SPARSE LENSES OF CONGLOMERATE.

Comment (Workings): NUGGET BENCH CHANNEL HAS BEEN MINED FOR 1000 FT ALONG A NE-SW TREND ACROSS NUGGET CREEK, CHANNEL SLOPES AWAY FROM PRESENT DRAINAGE DIRECTION, SO BEDROCK DRAINS HAVE BEEN CUT TO NUGGET CREEK

Comment (Production): 30,000 OZ AU PRODUCED FROM 1000 FT SECTION MINED ALONG NUGGET BENCH CHANNEL, USBM OFR 24-78, P. 4-114

Comment (Development): HYDRAULIC MINING HAS BEEN USED ON ELEVATED BENCH GRAVELS

Comment (Deposit): AVRIFEROUS STREAM GRAVELS 6 TO 8 FT DEEP; BENCH GRAVELS 1 TO 6 FT DEEP; UPPER CONGLOMERATIC UNIT OF KENAI FORMATION HAS BEEN MINED AT NUGGET BENCH HIGH CHANNEL, NE 1/4, SEC. 16, T. 28 N., R. 9 W., USGS OFR 311, P. 11

Comment (Deposit): BOTH QUATERNARY GLACIOFLUVIAL DEPOSITS AND TERTIARY CONGLOMERATIC UNITS HAVE BEEN MINED ON NUGGET CREEK; SEE ALSO: CACHE CREEK; GLACIOFLUVIAL DEPOSITS SIMILAR TO NUGGET CREEK CAN BE FOUND ON WINDY CREEK AND BIRD CREEK ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

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

References

Reference (Other Database): BAG-MF-870D-79

Reference (Deposit): USGS BULL 534, P. 58-60

Reference (Deposit): USGS BULL 592, 65-66

Reference (Deposit): USGS BULL 692, P. 248-249

Reference (Deposit): USGS BULL 933-A, P. 35

Reference (Deposit): USGS OFR 311, P. 11, 30, 32, 45

Reference (Deposit): USGS OFR 77-169A, P. 68, LOC. 22

Reference (Deposit): USBM OFR 24-78, P. 4-112 TO 4-114

Reference (Deposit): USGS MF 870-D, LOC. 79

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