The Hog is a silver 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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Hog MRDS details
Site Name
Primary: Hog
Commodity
Primary: Silver
Primary: Gold
Secondary: Zinc
Secondary: Antimony
Secondary: Mercury
Secondary: Lead
Secondary: Arsenic
Secondary: Copper
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Alteration locally is zoned outward from silicic to argillic to propylitic. The silicified zones contain quartz veins, amethystine quartz, chalcedony, massive quartz, and pyrite. Argillic minerals include montmorillonite, illite, and a green chloritic clay containing 1 to 10 percent pyrite (Peterson and others, 1982; 1983).
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Tetrahedrite
Ore: Sphalerite
Ore: Pyrite
Ore: Gold
Ore: Galena
Ore: Chalcopyrite
Ore: Arsenopyrite
Gangue: Quartz
Gangue: Chalcedony
Comments
Comment (Geology): Age = Oligocene or younger.
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Peterson and others, 1982; 1983
Comment (Deposit): Other Comments = This prospect is on land patented by, or interim-conveyed to, the Aleut Corporation.
Comment (Geology): Geologic Description = This prospect is in volcanic rocks of the late Oligocene to middle Miocene Unga Formation (Wilson and others, 1995). The rocks include volcanic flows, tuffs, ash-flow tuffs, volcaniclastic rocks, and hornblende porphyry. Anomalous gold and silver values have been traced in surface samples for more than 2,300 feet (Peterson and others, 1982; 1983). A northwest-trending mineralized breccia zone appears to have controlled high-grade ore shoots where it intersects northeast-trending structures. The host for the gold-silver mineralization is volcanic breccia. The breccia varies from fractured silica- veined rock to a polymictic breccia, that may in part be intrusive. The highest grade mineralization is associated with the polymictic breccia. The mineralization is accompanied by intense silicification and pyritization. Sparse amounts of arsenopyrite(?), chalcopyrite, galena, sphalerite, and tetrahedrite occur locally. The highest precious metal values were obtained from the discovery outcrop, where samples assayed 4.75 ppm gold and 268 ppm silver (Peterson and others, 1982; 1983). One drill hole intersected 33 feet of breccia containing 1.26 ppm gold and 11.7 ppm silver. This intersect includes 6 feet of breccia containing 2.38 ppm gold and 16.5 ppm silver. Several other holes cut rock having lower grade precious metal values. Surface exposures of other mineralized breccia returned values of as much as 4.69 ppm and 1.47 ppm gold.
Comment (Workings): Workings / Exploration = In 1983 Unc Teton Exploration Drilling Company drilled six core holes for a total of 1,350 feet, cut 475 feet of trenches, ran 12,350 feet of VLF-EM surveys, collected more than 400 samples of various types for geochemical analysis, and did 20,000 feet of gridding. The U.S. Geological Survey collected a few samples of this deposit in the mid-1980's. Battle Mountain Exploration Company examined the prospect in 1986.
Comment (Deposit): Model Name = Epithermal gold veins
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): 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.
Reference (Deposit): Angeloni, L.M., Wilson, F.H., and Sutlet, S., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 map sheet, scale 1:250,000.
Reference (Deposit): Peterson, R.J., Handverger, P., Rosenkrans, D., Bartels, E, and Woolston, D., 1983, Shumagin Islands precious metal exploration program southwest Alaska: UNC Teton Exploration Drilling Company report, 61 p. (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): 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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