The Andronica is a mercury and 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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Andronica MRDS details
Site Name
Primary: Andronica
Commodity
Primary: Mercury
Primary: Gold
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Pyritic-argillic alteration has been noted.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Gold
Ore: Cinnabar
Comments
Comment (Geology): Geologic Description = This occurrence is in rocks mapped as Popof volcanic rocks of late Eocene to early Oligocene age (Wilson and others, 1995). It is marked by a color anomaly measuring about 6,000 feet by 1,000 feet (Christie, 1974). The anomaly is marked by pyritic-argillic alteration. The rocks include flat-lying flows, tuffs, and volcaniclastic sedimentary rocks (Ellis and Apel, 1989). Moderate pervasive pyritic alteration occurs in several areas. Rock, soil, and pan-concentrate samples outlined 2-square-mile area containing anomalous mercury values. Cinnabar and gold were noted in several pan-concentrate samples. Gold values in the 100-to 500-ppb range are common in the stream-sediment and soil samples. No rock samples contained anomalous gold values. Major north-to north-northwest-trending zones of shearing and faulting may in part, control the mineralization.
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Battle Mountain Exploration Company explored this area from 1988 to 1989. They mapped, sampled, and prospected along six grid lines, and collected a total of 357 rock, soil, and pan-concentrate samples. They also ran magnetometer and VLF-EM surveys.
Comment (Geology): Age = Eocene or younger.
Comment (Reference): Primary Reference = Ellis and Apel, 1989
Comment (Deposit): Other Comments = the site is located on land selected by the Aleut Corporation.
References
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): Ellis, W.T., and Apel, R.A., 1989, Unga/Alaska Peninsula 1989 final report: Battle Mountain Exploration Company report, 41 p., 28 map sheets at various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
Reference (Deposit): Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.
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.)
Reference (Deposit): Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.
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