Scott Prospect, Woewodski Island, Petersburg Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Scott Prospect | Prospect |
| Woewodski Island | Island |
| Petersburg Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
56° 34' 23'' North , 133° 0' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Petersburg | 2,948 (2017) | 26.8km |
Location: The Scott prospect is about 1.4 miles northeast of the east end of Harvey Lake and about 0.3 mile northeast of the center of section 24, T 61 S, R. 79 E. It is in a steep gully at an elevation of about 770 feet. The location is accurate. Figure 20 in Still and others (2002) is a detailed map of the Scott prospect.
Geology: At various times from the 1970's, much of central Woewodski Island has been staked by a succession of companies; these include Resource Associates of Alaska, Cominco Exploration, Colony Pacific, Amselco, Kennecott Exploration, Houston Oil and Minerals, Westmin Resources, and the Olympic Resources Group. During several of these episodes in the 1980's and early 1990's, there was soil sampling on the Scott prospect and three holes were drilled there (Still and others, 2002). It has been examined several times since and claims are still active on it in 2008. The nearby Scott Gold prospect (PE090) shares a similar history.
The Scott deposit can be traced for 300 feet in a series of discontinuous exposures along a steep gully. The mineralization consists of bands and lenses of barite, pyrite, and galena, 0.1 to 2.0 feet thick, that parallel the layering in the host rock. The host rocks at the prospect are semischist and phyllite that are correlative with the Triassic Hyd Group (Karl and others, 1999, Brew, 1997). Individual lenses of mineralization can be traced for to up to 30 feet. Still and others (2002) collected 22 samples that contained up to 1,122 parts per billion (ppb) gold, 47.3 parts per million (ppm) silver, 2.63 percent lead, and 40.9 percent zinc. Lower metal values persist out into the wall rock as disseminated ore minerals and a sample of quartz and greenstone float found near the sulfide lenses contained up to 8,157 ppb gold. (There is no information available on the drill holes.)
Workings: At various times from the 1970's, much of central Woewodski Island has been staked by a succession of companies; these include Resource Associates of Alaska, Cominco Exploration, Colony Pacific, Amselco, Kennecott Exploration, Houston Oil and Minerals, Westmin Resources, and the Olympic Resources Group. During several of these episodes in the 1980's and early 1990's, there was soil sampling on the Scott prospect and three holes were drilled there (Still and others, 2002). It has been examined several times since and claims are still active on it in 2008.
Age: Triassic or younger based on age of the host rock.
Alteration: None specifically noted.
Reserves: None.
Commodities (Major) - Ag, Au, Ba, Pb, Zn
Development Status: None
Deposit Model: Kuroko massive sulfide (Cox and Singer, 1986; model 28a).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Baryte | BaSO4 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | PE091 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
USA
- Alaska
- Petersburg Borough
- Kupreanof Mining DistrictMining District
- ⭔Wrangell-Petersburg Census AreaBorough
- Petersburg Borough
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