The Unnamed (on Blunt Mountain) is a lead 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 (on Blunt Mountain) MRDS details
Site Name
Primary: Unnamed (on Blunt Mountain)
Commodity
Primary: Lead
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: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericitization of trondhjemite, and oxidation of iron mineral(s) in veins to hematite(?).
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Silurian
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Silurian
Analytical Data
Not available
Materials
Ore: Galena
Ore: Pyrite
Gangue: Hematite
Gangue: Quartz
Comments
Comment (Geology): Age = Fissure veins probably are Late Cretaceous or younger.
Comment (Deposit): Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c)
Comment (Reference): Primary Reference = Berg, 1972 (I 684)
Comment (Geology): Geologic Description = The country rock in the area of this site is Silurian trondhjemite that was regionally metamorphosed to greenschist grade in Late Cretaceous time (Berg, 1972). The occurrence is in sericitized trondhjemite, and consists of sparse galena, hematite(?), and pyrite in iron-stained quartz fissure veins and pods up to 10 feet thick.
References
Reference (Deposit): Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360,
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): Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.
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.
