The Treadwell Mines 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
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Treadwell Mines MRDS details
Site Name
Primary: Treadwell Mines
Secondary: Alaska Treadwell
Secondary: Alaska Mexican
Secondary: Ready Bullion
Secondary: Seven Hundred Foot
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Tertiary: Zinc
Tertiary: Copper
Tertiary: Molybdenum
Tertiary: Tungsten
Tertiary: Antimony
Tertiary: Arsenic
Location
State: Alaska
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Not available
Production
Year: 1922
Time Period: 1885-1922
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1882
Year Last Production: 1922
Discovery Year: 1881
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Diorite Highly Altered (Albitized & Pyritized) In Part
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Molybdenite
Ore: Realgar
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Tetrahedrite
Ore: Gold
Ore: Orpiment
Ore: Galena
Gangue: Pyrrhotite
Gangue: Quartz
Gangue: Pyrite
Gangue: Albite
Gangue: Magnetite
Gangue: Rutile
Gangue: Calcite
Comments
Comment (Reserve-Resource): NORTHERN MINER MARCH 29, 1984, P. 12
Comment (Production): CUMULATIVE PRODUCTION FIGURES ARE FOR ALL FOUR MINES
Comment (Development): LEASED TO BARRICK RESOURCES IN 1984 FOR LONG TERM EXPLORATION, DEVELOPMENT, AND PRODUCTION (?) PROGRAM
Comment (Deposit): GOLD-AND SULFIDE-BEARING QUARTZ VEINS IN SHATTERED ALBITE DIORITE SILLS IN SEQUENCE OF SLATE BELOW GREENSTONE HANGING WALL. SLATE HORSES IN VEINS ALSO MINERALIZED
Comment (Workings): ALL FOUR MINES OF THE TREADWELL COMPLEX WERE CONNECTED UNDERGROUND. THE READY BULLION MINE WAS SEPARATED FROM THE OTHERS BY A WATERTIGHT BULKHEAD AND WAS NOT FLOODED WITH THE TREADWELL, SEVEN HUNDRED FOOT, AND MEXICAN MINES IN 1917, ALSO FOUR MAJOR GLORY HOLES.
Comment (Deposit): FOUR MAJOR MINES OWNED BY THREE (RELATED) COMPANIES MINED SEGMENTS OF ONE MAJOR VEIN STRUCTURE OVER 3500 FT LONG. THREE OF THE FOUR MINES WERE FLOODED BY SEAWATER IN 1917 AND NEVER REOPENED. THE THREE COMPANIES MERGED FOLLOWING THE FLOODING. THE FOURTH MINE CLOSED IN 1922. ALL PROPERTIES WERE SOLD TO THE ALASKA JUNEAU GOLD MINING CO. IN 1928. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): USGS OFR 78-374, P. 125-128
Reference (Deposit): STONE, DAVID, AND STONE, BRENDA, 1980, HARD ROCK GOLD: JUNEAU, CITY AND BOROUGH OF JUNEAU, JUNEAU CENTENNIAL COMMITTEE, 108 P.
Reference (Deposit): NORTHERN MINER, MARCH 29, 1984, P. 12
Reference (Production): USGS OFR 78-374
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