The Misty Mountain is a gold 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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Misty Mountain MRDS details
Site Name
Primary: Misty Mountain
Commodity
Primary: Gold
Secondary: Mercury
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
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Regional propylitic alteration; no apparent wall-rock alteration around vein.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Gold
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Epithermal gold vein
Comment (Geology): Geologic Description = This occurrence is primarily a very high ( more than 40 colors per pan) gold pan concentrate anomaly. Country rocks are strongly propylitically altered andesitic tuffs and flows capped by unaltered basaltic volcanic rocks. The andesitic rocks host a wide-spaced cockscomb quartz vein system containing rare arsenopyrite. 'The veining appears to be controlled by several shear zones that developed in response to large-scale faulting (Randolph, 1991).' Battle Mountain Exploration considered source of pan concentrate anomaly indeterminate as their fieldwork was unable to delineate a source. A ridge to the north of the occurrence hosts several wide-spaced quartz vein systems; however, sampling did not locate highly anomalous areas.
Comment (Reference): Primary Reference = Randolph, 1991
Comment (Workings): Workings / Exploration = Pan concentrate, rock, and soil sampling by BMEC. Rock sampling was of andesitic rocks cut by quartz veins in the stream basin. Highest gold from these rocks was 168 ppb, pan concentrate from the basin yielded 170 ppb Au and 930 ppb Hg.
Comment (Geology): Age = Late Tertiary or younger
References
Reference (Deposit): Randolph, D.B., 1991, Unalaska project, 1990 final report: Battle Mountain Exploration Company, Alaska District, 62 p., 5 appendices, 15 plates, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
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