Bluebird Prospect, Petersburg Mining District, Hoonah-Angoon Census Area, Alaska, USAi
Regional Level Types | |
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Bluebird Prospect | Prospect |
Petersburg Mining District | Mining District |
Hoonah-Angoon Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
57° 36' 25'' North , 133° 23' 2'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
196559
Long-form identifier:
mindat:1:2:196559:2
GUID (UUID V4):
29a05201-a5b0-4ef0-bd60-b0517939de59
The prospect is in the Chuck River Wilderness Area which is closed to mineral exploration and mining.
Location: The Bluebird prospect is at an elevation of about 480 feet, about 0.2 mile southeast of the north end of Taylor Lake and near the center of section 21, T. 49 S., R. 75 E.
Geology: The Bluebird claim was located in 1903 on a quartz vein 2 feet thick. The only workings on the prospect are an open cut about 5 feet by 5 feet in size on the bank of a creek and a flooded shaft about 180 feet east-southeast of the open cut (Kimble and others, 1984). The open cut exposes a 1.6-foot- thick quartz vein that strikes N40W and dips 70SW in calcareous schist that strikes N22W and dips 70SW. There is abundant pyrite, sphalerite, chalcopyrite, and galena in the hanging wall of the vein. A 1.5-foot-long channel sample across the vein contained 17.1 parts per million (ppm) silver, 20 ppm gold, 2,000 ppm lead, and 1,300 ppm zinc. A 0.3-foot channel sample through the sulfide-rich hanging wall contained 296.5 ppm silver, 2.1 ppm gold, 1,300 ppm copper, 3,300 ppm lead, and 2,900 ppm zinc. The shaft does not expose mineralization but the size of its dump indicates about 400 feet of underground workings. A select sample of quartz-rich material from the dump contained 3 ppm silver, 400 ppm copper, 840 ppm lead, and 2,800 ppm zinc. The rocks in the area are part of the Cretaceous green schist unit of Brew and Grybeck (1984).
Workings: The prospect was explored by a small open cut and a flooded shaft that had about 400 feet of underground workings.
Age: Cretaceous or younger based on the age of the host rocks.
Commodities (Major) - Ag, Au, Cu, Pb, Zn
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
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
5 valid minerals.
Detailed Mineral List:
β Chalcopyrite Formula: CuFeS2 |
β Galena Formula: PbS |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
β | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Quartz | SiO2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Galena | PbS |
S | β Pyrite | FeS2 |
S | β Sphalerite | ZnS |
Fe | Iron | |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Pb | Lead | |
Pb | β Galena | PbS |
Other Databases
Link to USGS - Alaska: | SD030 |
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