Miners River; Miners River Nickel; Miners Bay Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types | |
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Miners River; Miners River Nickel; Miners Bay Prospect | Prospect |
Prince William Sound Mining District | Mining District |
Valdez-Cordova Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
61° 5' 24'' North , 147° 24' 35'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
198901
Long-form identifier:
mindat:1:2:198901:7
GUID (UUID V4):
152d1cd6-e3d9-473d-9ea5-6d2e3b08bc54
Cobb (1972) located this site north of Miners Lake, however Grant (1906) whom serves as Cobb primary references, indicate that it is where Miners River enters into Miners Bay.
Location: Located near the mouth of Miners River, on the east side of Unakwik Bay. It should be noted that the Cobb (1972) locality is plotted too far upstream on MF 409. Accurate within 1 mile. Locality 65 of Cobb (1972), locality 53 of MacKevett and Holloway (1977), locality 73 of Hoekzema (1984) and locality A-14 of Jansons and others (1984).
Geology: A 'vein' or zone that has no sharply defined walls in the diorite country rock has been pyrrhotitized in a zone 10-20 ft wide. This sulfide-bearing rock is iron-stained and contains pegmatitic veins which also carry pyrrhotite. These veins are 0.25 to 2 inches in width and are not sharply defined (Grant, 1906). The pyrrhotite disseminated in the pegmatitic veins carry nickel, cobalt, and copper (Hoekzema and Fechner, 1986). Chip samples contained from 400 ppm to 2,000 ppm Ni, 93 ppm to 2,000 ppm Co, and 100 ppm to 2,000 ppm Cu. Grab samples contained from 20 ppm to 2,000 ppm Ni, 36 to 800 ppm Co, and 20 ppm to 1,000 ppm Cu. A 260 lb bulk sample contained 2,500 ppm Ni, 200 ppm Co, and 3,100 ppm Cu (Hoekzema, 1984).
Workings: Exploration consists of an 8 ft and an 218 ft adit. Chip samples contained from 400 ppm to 2,000 ppm Ni, 93 ppm to 2,000 ppm Co, and 100 ppm to 2,000 ppm Cu. Grab samples contained from 20 ppm to 2,000 ppm Ni, 36 to 800 ppm Co, and 20 ppm to 1,000 ppm Cu. A 260 lb bulk sample contained 2,500 ppm Ni, 200 ppm Co, and 3,100 ppm Cu. These results indicate low mineral potential (Hoekzema, 1984).
Age: Tertiary or younger.
Alteration: Pyritization of diorite country rock.
Reserves: Webber and Rutledge (1944) stated that inferred reserves are 11,000 tons at 0.2 percent Ni and 0.2 percent Cu.
Commodities (Major) - Co, Cu, Ni
Development Status: Undetermined
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
3 valid minerals.
Detailed Mineral List:
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Pentlandite Formula: (NixFey)Σ9S8 |
ⓘ Pyrrhotite Formula: Fe1-xS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
List of minerals for each chemical element
S | Sulfur | |
---|---|---|
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Pentlandite | (NixFey)Σ9S8 |
S | ⓘ Pyrrhotite | Fe1-xS |
Fe | Iron | |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
Fe | ⓘ Pyrrhotite | Fe1-xS |
Ni | Nickel | |
Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
Link to USGS - Alaska: | AN144 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainDomain
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