The East Takoka Creek is a copper 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.
East Takoka Creek MRDS details
Site Name
Primary: East Takoka Creek
Commodity
Primary: Copper
Secondary: Gold
Location
State: Alaska
District: Bristol Bay
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Abundant chlorite, epidote, and sparse quartz-carbonate alteration.
Rocks
Role: Host
Age Type: Host Rock
Age in Years: 59.450000+-3.250000
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Quartz
Gangue: Calcite
Gangue: Chlorite
Gangue: Epidote
Comments
Comment (Reserve-Resource): Reserves = No reserves
Comment (Workings): Workings / Exploration = Some copper anomalies in the area may result from high background copper in basic volcanic rocks (Nelson and others, 1985). Resource Associates of Alaska (1976) reported one soil sample which yielded 0.8 ppm Au. Area J of Eakins (1970) located approximately 2.6 km downstream contained stream sediment samples which yielded 130 ppm Cu; lead and zinc were not anomalous.
Comment (Exploration): Status = Inactive
Comment (Production): Production Notes = No production
Comment (Reference): Primary Reference = Nelson and others, 1985
Comment (Geology): Geologic Description = Local zones of fracturing and epidote or quartz-carbonate veins in greenstone contain chalcopyrite and pyrite. Some copper anomalies here may result from high initial copper in basic volcanic rocks (Nelson and others, 1985).? the Tertiary volcanic rocks of this unit includes: rhyolitic breccia, ash-flow tuff, flows, and intrusive rocks and subordinate mafic to intermediate flows (Nelson and others, 1983; unit Tv). Potassium-argon ages for Unit Tv range from 56.2 to 62.7 m.y. indicating a Tertiary age for these rocks (Eakins and others, 1978).
Comment (Deposit): Other Comments = Gold anomaly in soil sample is only gold detected in the Kontrashibuna Lake area. Site is in Lake Clark National Park and Preserve.
Comment (Geology): Age = Probably Tertiary. Volcanic host for mineralization has potassium-argon ages that range from 56.2 to 62.7 m.y. (Eakins and others, 1978).
Comment (Deposit): Model Name = Unknown
Comment (Geology): Age = Chron age is for host rock.
References
Reference (Deposit): Nelson, W.H., King, H.D., Case, J.E., Tripp, R.B., Crim, W.D., and Cooley, E.F., 1985, Mineral resource map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-B, 1 sheet, scale 1:250,000.
Reference (Deposit): Nelson, W.H., Carlson, C., and Case, J.E., 1983, Geologic map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-A, scale 1:250,000.
Reference (Deposit): Eakins, G.R., Gilbert W.G., and Buntzen, T.K., 1978, Preliminary bedrock geology and mineral resource potential of west-central Lake Clark quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File Report 118, 15 p.
Reference (Deposit): Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.
Reference (Deposit): Eakins, G.R., 1970, Geology and geochemistry of Kontrashibuna Lake, Lake Clark region, southwestern Alaska: Alaska Division of Mines and Geology Geochemical Report 20, 34 p.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
