The Hatcher is a gold 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
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Hatcher MRDS details
Site Name
Primary: Hatcher
Secondary: Utopia
Secondary: North Gold
Commodity
Primary: Gold
Primary: Silver
Secondary: Lead
Secondary: Zinc
Secondary: Copper
Location
State: Alaska
District: Homer
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Low-sulfide Au-quartz vein
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Borden and others (1991) report carbonization, sulfidization, sericitization, and silicification of the wall rock adjacent to the veins.
Rocks
Name: Siltstone
Role: Host
Age Type: Host Rock Unit
Age Young: Paleocene
Name: Siltstone
Role: Host
Age Type: Host Rock
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Galena
Ore: Gold
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Low-sulfide, Au-quartz vein (Cox and Singer, 1986; model 36a)
Comment (Deposit): Other Comments = These prospects are within Kenai Fjords National Park; the area is closed to mineral entry.
Comment (Reference): Primary Reference = Richter, 1970; Pilgrim, 1933
Comment (Geology): Age = Tertiary; Boden and others (1991) report other veins in the district are about 55 m.y. old.
Comment (Geology): Geologic Description = The host rock of the prospects is Cretaceous Valdez Group slates and graywackes (Richter, 1970). The quartz veins are typical of the district and consist of white crystalline quartz with varying amounts of sulfides. Arsenopyrite is the dominate sulfide with decreasing amounts of pyrite, chacopyrite, sphalerite, and galena. Gold occurs as free gold and is associated with arsenopyrite. The veins are confined to the more massive graywacke units and commonly pinch out when they splay into the slate units. The veins at the various tunnels and prospect pits range in width from five inches to over five feet. The general strike of the veins is east-west with a near vertical dip.
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = The workings consist of several short tunnels and numerous prospect pits. No assay results are reported.
References
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Richter, D.H., 1970, Geology and lode-gold deposits of the Nuka Bay area, Kenai Peninsula, Alaska: U.S. Geological Survey Professional Paper 625-B, p. Bl-B16.
Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Seldovia quadrangle, Alaska: U.S. Geological Survey Open-file Report 80-87, 47 p.
Reference (Deposit): Pilgrim, E.R., 1933, Progress of lode mining in interior Alaska, 1932: Alaska Territorial Department of Mines Miscellaneous Report 194, 11 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic minerals resources map of the Seldovia quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-397, 1 sheet, scale 1:250,000.
Reference (Deposit): Borden, J.C., Goldfarb, R.J., Gent, C.A., Burruss, R.C., and Roushey, B.H., 1992 Geochemistry of lode-gold deposits, Nuka Bay district, southern Kenai Peninsula: Geologic studies in Alaska by the U.S. Geological Survey, 1991: U.S. Geological Survey Bulletin 2041, p. 13-21.
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