The Beaver Inlet, Erskine Bay, Kisselem Bay is a gold, copper, and 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
Beaver Inlet, Erskine Bay, Kisselem Bay MRDS details
Site Name
Primary: Beaver Inlet, Erskine Bay, Kisselem Bay
Commodity
Primary: Gold
Primary: Copper
Primary: Silver
Secondary: Zinc
Location
State: Alaska
District: Aleutians
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
Model Name: Porphyry Cu
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Chlorite is the only alteration phase mentioned and may indicate propylitic alteration. However, bleaching (leaching) may indicate other types of alteration. Alteration ranges from moderate to very intense.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Gangue: Chlorite
Comments
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Eighteen soil samples were collected in the course of reconnaissance mapping, samples contained up to 123 ppm copper, 102 ppm zinc, 1.7 ppm silver, and 0.02 ppm gold.
Comment (Reference): Primary Reference = Christie, 1974
Comment (Geology): Geologic Description = Orange, brown, and purple color anomaly, 300 ft (90 m) by 1500 ft (450 m) confined to feldspar porphyry andesite. Anomaly is oriented along ridge crest, essentially east-west. Color is due to weathering of very finely disseminated pyrite. Narrow N-S trending shear zones are especially leached and fractured; their original sulfide content was indeterminate due to the extensive leaching and alteration in the shear zones. Some zones, especially one at extreme east end of point of land, may represent zones of bleaching and alteration due to solfataric activity. Fracturing ranges from poor to intense. Other associated rocks include amygdaloidal andesite and minor coarse-grained diorite. No visible sulfides were seen in the dioritic intrusive.
Comment (Deposit): Model Number = 17, 25
Comment (Deposit): Model Name = Copper porphyry, epithermal gold vein
Comment (Geology): Age = Cenozoic
References
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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