The Sentinal Peak is a silver 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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Sentinal Peak MRDS details
Site Name
Primary: Sentinal Peak
Commodity
Primary: Silver
Location
State: Alaska
District: Alaska Peninsula
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: Epithermal vein, generic
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Not described.
Rocks
Not available
Analytical Data
Not available
Materials
Gangue: Pyrite
Gangue: Stilbite
Comments
Comment (Workings): Workings / Exploration = Brief reconnaissance geologic mapping and collection of a few soil and silt samples. Copper, molybdenum, zinc, and gold values were not anomalous; silver ranged between 1.3 and 1.9 ppm.
Comment (Reference): Primary Reference = Christie, 1974
Comment (Geology): Geologic Description = Christie (1974) briefly examined a 4,000 ft (1.2 km) by 3,000 ft (900 m) color anomaly developed in a basalt-andesite volcanic sequence. Rocks are generally unaltered except where pyrite content is high (about 5 percent); the typical pyrite content in the anomaly is 0.1 to 1 percent. The altered rock forms narrow (+/- 20 ft, 6 m) linear zones. Fracture-controlled pyrite apparently is confined to these altered zones. No mention is made of quartz veining. Minor quartz diorite porphyry and granodiorite were seen in float in the creek on the east side of the ridge but no intrusive rocks were seen in outcrop.
Comment (Deposit): Model Name = Epithermal gold vein?
Comment (Deposit): Other Comments = Altered area examined by W.H. White (USGS, 1990); no significant mineralization found.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Miocene or younger
References
Reference (Deposit): F.H. Wilson and W.H. White, U.S.G.S. unpublished data, 1992
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)
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