The Black 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
Black MRDS details
Site Name
Primary: Black
Commodity
Primary: Gold
Location
State: Alaska
District: Willow Creek
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Low-sulfide Au-quartz vein
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Late Cretaceous or younger; the mineralized host is the Late Cretaceous Willow Creek Pluton.
Comment (Workings): Workings / Exploration = Roehm (1937) reported that Sydney Black was developing a small property with two men employed on Craigie Creek, near the head.
Comment (Reference): Primary Reference = Roehm, 1937
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins ? (Cox and Singer, 1986; model 36a ? )
Comment (Geology): Geologic Description = Very little information available on this prospect. Presumably the occurrence is similar to others in the area - auriferous quartz veins cutting quartz diorite. Country rock is the Late Cretaceous Willow Creek Pluton, a zoned pluton: the outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
Comment (Geology): Age = Host rock is Late Cretaceous.
References
Reference (Deposit): ROEHM, J.C., 1937, PRELIMINARY REPORT OF MINING ACTIVITIES ON CROW CREEK, GIRDWOOD DISTRICT, ALASKA: TERRITORY OF ALASKA DEPARTMENT OF MINES REPORT (1946 SUPPLEMENT), 6P., 2 MAPS.
Reference (Deposit): Roehm, J.C., 1937, Preliminary report of operating mines and prospects, Willow Creek district, Alaska: Alaska Territorial Department of Mines Miscellaneous Report 85-4, 15 p.
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