Unnamed Prospect (ARDF - PE101; near the south end of Woewodski Island), Kupreanof Mining District, Petersburg Borough, Alaska, USAi
Regional Level Types | |
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Unnamed Prospect (ARDF - PE101; near the south end of Woewodski Island) | - not defined - |
Kupreanof Mining District | Mining District |
Petersburg Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
56° 31' 18'' North , 132° 59' 49'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
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Petersburg | 2,948 (2017) | 32.4km |
Location: This prospect covers an area of about 1,500 feet by 5,000 feet, centered about 0.6 mile north of the southern tip of Woewodski Island. The center of the area is about 0.6 mile south-southeast of the northwest corner of section 5, T. 62 S., R. 80 E.
Geology: In the late 1990's, Olympic Resources collected hundreds of soil samples on a grid and outlined an area about 1,500 feet by 5,000 feet in size with anomalous gold values. However, when the Bureau of Land Management (Still and others, 2002) recollected some samples in the area, on analysis they could not verify the original results. The discrepancy cannot be explained. In 2000, Olympic Resources drilled 7 holes in the area; the results have not been published but were said to be 'not favorable' by Still and others (2002). The rocks in the area are volcanics of the Triassic Hyd Group that have been intruded by a Upper Cretaceous hornblende diorite (Brew, 1997; Karl and others, 1999). While the persistent high gold values of the original soil sampling could not be confirmed by Still and others (2002), several of their soil samples contained anomalous gold and arsenic. Two samples contained 67 and 75 parts per billion (ppb) gold and 122 and 124 parts per million (ppm) arsenic. They also collected two samples of silicified greenstone with disseminated pyrite that contained 94 to 730 ppb gold and 1,374 to more than 10,000 ppm arsenic.
Workings: In the late 1990's, Olympic Resources collected hundreds of soil samples on a grid and outlined an area about 1,500 feet by 5,000 feet in size with anomalous gold values. However, Still and others (2002) could not confirm the original assays. In 2000, Olympic Resources drilled 7 holes in the area (Still and others, 2002).
Age: Probably Triassic of younger based on the age of the host rocks.
Alteration: Volcanic rocks are silicified near one mineralized outcrop.
Reserves: None.
Commodities (Major) - Au; (Minor) - As
Development Status: None
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Brew, D.A., 1997, Reconnaissance geologic map of the Petersburg C-4 quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 97-156-J, 21 p., 1 sheet, scale 1:63,360. Karl, S.W., Haeussler, P.J., and McCafferty, A.E., 1999, Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska: U.S. Geological Survey Open-File Report 99-0168, 30 p., 1 sheet, scale 1:150,000. Still, J.C., Bittenbender, P.E., Bean, K.W., and Gensler, E.G., 2002, Mineral assessment of the Stikine area, central Southeast Alaska: U.S. Bureau of Land Management Technical Report 51, 560 p.
Other Databases
Link to USGS - Alaska: | PE101 |
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Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander DomainDomain
USA
- Alaska
- ⭔Wrangell-Petersburg Census AreaBorough
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