Mamie Mine

The Mamie Mine is a copper and 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: Mamie Mine
Secondary: Brown Alaska Co
Secondary: Mt Andrew Mine
Secondary: Stevenstown Mine

Commodity

Primary: Copper
Primary: Gold
Secondary: Silver
Tertiary: Iron

Location

State: Alaska

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Year: 1918
Time Period: 1905-1918

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1905
Year Last Production: 1918
Discovery Year: 1898
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: LENSES, IRREGULAR

Structure

Type: L
Description: Two Systems Of Folds Trending N 10 W And N 80 E Respectively. One Fault With Several Hundred Ft Of Displacement Trends N 80 E

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Magnetite
Ore: Pyrite
Ore: Chalcopyrite
Gangue: Epidote
Gangue: Calcite
Gangue: Garnet
Gangue: Limonite
Gangue: Malachite

Comments

Comment (Deposit): MAMIE, MT ANDREW, AND STEVENSTOWN MINES ARE COMBINED HERE AS A SINGLE DEPOSIT BECAUSE OF PROXIMITY & ESSENTIALLY IDENTICAL DEPOSIT & GELOGIC CHARACTERISTICS. ; INFO.SRC : 1 PUB LIT

Comment (Workings): MAMIE MINE HAD 3 GLORY HOLES AND 3 ADITS. MT ANDREW HAD 4 GLORY HOLES AND OVER 4000 FT OF UNDERGROUND WORKINGS. STEVENSTOWN HAD GLORY HOLES AND 1000 FT OF TUNNELS

Comment (Location): MT ANDREW IS LOCATED AT 55-31-00; 132-18-00 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Reserve-Resource): USGS BULLETIN 1090, P. 54-80

Comment (Production): MORE THAN 50% OF THIS PRODUCTION CAME FROM MAMIE MINE

Comment (Deposit): ORE BODIES ARE CONTORTED LENSES OF MAGNETITE CONTAINING DISSEMINATED CHALCOPYRITE AND CALCITE, GARNET AND EPIDOTE GANGUE. AREAS THAT WERE RICHER IN CHALCOPYRITE GRADED TOWARDS MASSIVE. THESE BODIES, WHICH ARE CONTACT METASOMATIC REPLACEMENTS OF LIMESTONE LENSES WITHIN VOLCANICLASTIC STRATA ARE UP TO 600 FEET LONG, 550 FEET WIDE AND 150 FEET DEEP, BUT MOST ARE A GOOD DEAL SMALLER E.G. 50-100 FEET LONG, 10-40 FEET WIDE

References

Reference (Deposit): USGS BULLETIN 347, P. 112-114, 115-117

Reference (Deposit): USBM REPORT OF INVESTIGATIONS 4129.

Reference (Deposit): USGS BULLETIN 1090, P 54-93

Reference (Deposit): USGS OPEN FILE 878-869, P. 124-127, 143-145, 197-198

Reference (Production): USGS BULLETIN 1090, P. 54-80

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