The Unnamed (near Alava Bay) is a iron 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.
Unnamed (near Alava Bay) MRDS details
Site Name
Primary: Unnamed (near Alava Bay)
Commodity
Primary: Iron
Location
State: Alaska
District: Ketchikan
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: Alaskan Cr-Pt (PGE)
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Titaniferous Magnetitite
Comments
Comment (Geology): Geologic Description = The country rocks at Alava Bay include: Permian marble; an assemblage of undivided Mesozoic or upper Paleozoic, metamorphosed sedimentary, volcanic, and intrusive rocks; a stock, dikes, and sills of Cretaceous granodiorite; and a plug and associated dikes of ultramafic hornblendite and pyroxenite, also of Cretaceous age (Berg and others, 1988). The marble, the undivided assemblage, and some of the Cretaceous granodiorite were regionally metamorphosed to greenschist grade in middle or Late Cretaceous time. These metamorphic rocks subsequently were remetamorphosed to hornblende hornfels grade near the contacts of intrusive rocks that were emplaced after the regional metamorphism. The structural base of the Permian marble is a thrust fault that dips gently to moderately northeast.? the deposit consists of magmatic titaniferous magnetite in a Cretaceous hornblendite-pyroxenite plug or dike that apparently intrudes both the Cretaceous granodiorite and the undivided metamorphic assemblage (Berg and others, 1978, p. 24,25; Berg and others, 1988). The magnetite occurs as individual crystals and as streaks and small, podlike segregations in the ultramafic rocks. The deposit was examined by private interests in the 1960s, but the results of that examination have not been made public.
Comment (Workings): Workings / Exploration = The deposit was examined by private interests in the mid-1960s, but the results of that examination have not been made public.
Comment (Reference): Primary Reference = Berg and others, 1978; Berg and others, 1988
Comment (Geology): Age = Cretaceous.
Comment (Deposit): Model Name = Alaskan PGE (Cox and Singer, 1986; model 9)
References
Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.
Reference (Deposit): Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.
Reference (Deposit): Berg, H.C., Elliott, R.L., and Koch, R.D., 1978, Map and tables describing areas of metalliferous mineral resource potential in the Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-73-M, 52 p., 1 sheet, scale 1:250,000.
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.
