The Pook 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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Pook MRDS details
Site Name
Primary: Pook
Commodity
Primary: Gold
Primary: Silver
Secondary: Mercury
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: The only alteration reported is silicification.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Calcite
Comments
Comment (Workings): Workings / Exploration = In 1981 Resource Associates of Alaska mapped the prospect, collected about 300 samples, conducted magnetometer and EM surveys, and drilled one 365-foot diamond drill hole. The best metal values obtained from the prospect include 0.098 ounce of gold per ton, 1.47 ounces of silver per ton, 210 ppm copper, 1,000 ppm lead, 130 ppm zinc, 300 ppm arsenic, and 0.15 ppm mercury. Eighty percent of rock, soil, and power auger samples collected by Battle Mountain Exploration Company in 1991 contained gold values between 26 ppb and 100 ppb. The remainder lacked gold, except for one sample of Pook vein material, which assayed 0.13 ounce of gold per ton.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Eocene or younger.
Comment (Reference): Primary Reference = Trujillo and others, 1981
Comment (Deposit): Model Name = Epithermal gold vein
Comment (Geology): Geologic Description = The Pook prospect is in rocks mapped as the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995). It is a northeast-striking, gold-bearing pyritic quartz-calcite vein system 10 to 70 feet wide and 2,000 feet long (Trujillo and others, 1981). A trace of chalcopyrite occurs in some of the veins. Individual veins in the system are as much as15 feet thick. The mineralized zone occurs along a fault contact between a basalt flow and a sequence of pyroclastic rocks and andesite flows. The vein material is sheared and crushed and shows evidence of repeated movement, resulting in a complex structural pattern. Anomalous gold values occur throughout the entire length of the zone. The best surface grades are 0.098 ounce of gold per ton, 1.47 ounces of silver per ton, 210 ppm copper, 1,000 ppm lead, 130 ppm zinc, 300 ppm arsenic, and 0.15 ppm mercury (Trujillo and others, 1981). A single drill hole apparently missed this zone at depth but hit a deeper, 76-foot-thick zone. A 35-foot section of this deeper zone assayed 0.005 to 0.020 ounce of gold per ton and 0.02 to 0.06 ounce of silver per ton. In 1991 Battle Mountain Exploration Company collected 26 power auger, 19 rock, and 15 soil samples at the prospect in a 2,600- by 1,000-foot area. Eighty percent of these samples returned low-level gold values between 26 ppb and 100 ppb. One high grade vein sample assayed 0.13 ounce of gold per ton (Ellis and Randolph, 1991).
Comment (Deposit): Other Comments = the prospect is located on land patented by, or interim-conveyed to, the Aleut Corporation.
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): Ellis, W.T., and Randolph, D., 1991, Unga project 1991 final report: Battle Mountain Exploration Company report, 36 p. 13 map sheets at various scales. (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.
Reference (Deposit): Trujillo, R.S., Anderson, G., MacLeod, T., Hendrick, K., Farnham, S., Peterson, J., 1981. Exploration and evaluation of the Unga-Popof-Korovan Islands portion of lands leased from Aleut Native Corporation: Resource Associates of Alaska report, 70 p., 38 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
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