The Irish 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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Irish MRDS details
Site Name
Primary: Irish
Commodity
Primary: Gold
Primary: Silver
Secondary: Arsenic
Secondary: Copper
Secondary: Mercury
Secondary: Lead
Secondary: Zinc
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: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: The hostrock is propylitically altered.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Geology): Geologic Description = The hostrock at this prospect is propylitically altered andesite of the Eocene to Oligocene Popof volcanic rocks (Wilson and others, 1995). Mineralization occurs in quartz breccia that forms three small, discontinuous zones exposed in a creek bottom (Peterson and others, 1982). The breccia contains as much as 20 percent disseminated pyrite. The zones are three feet wide and have been traced for only 5 feet along strike. Six rock samples contained as much as 0.33 ppm gold, 21 ppm silver, 81 ppm copper, 535 ppm lead, 1,810 ppm zinc, 1,000 ppm or more arsenic, and 1.25 ppm mercury (Peterson and others, 1982).
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = In 1982 UNC Teton Exploration Drilling Company mapped and sampled this prospect (Peterson and others, 1982). Rock samples contained as much as 0.33 ppm gold, 21 ppm silver, 81 ppm copper, 535 ppm lead, 1,810 ppm zinc, 1,000 ppm or more arsenic, and 1.25 ppm mercury.
Comment (Reference): Primary Reference = Peterson and others, 1982
Comment (Geology): Age = Eocene or younger.
Comment (Deposit): Other Comments = This prospect is located on land patented by, or interim-conveyed to, the Aleut Corporation.
Comment (Deposit): Model Name = Epithermal gold vein, Polymetallic vein (Cox and Singer, 1986; model 22c)
References
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): Peterson, R.J., Lemmers, J., Handverger, P., Gallagher, J., Pilcher, R., East, J., Macleod, T., Bartels. E., 1982, Geology and precious metals potential Unga, Popof, and Korovin Islands, Shumagin Group, Aleutian Chain, Alaska: UNC Teton Exploration Drilling Company report, 127 p., 5 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
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