Salmon River Occurrence, Kiana Mining District, Northwest Arctic Borough, Alaska, USAi
Regional Level Types | |
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Salmon River Occurrence | Occurrence |
Kiana Mining District | Mining District |
Northwest Arctic Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
67° 40' 48'' North , 159° 49' 11'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
199820
Long-form identifier:
mindat:1:2:199820:0
GUID (UUID V4):
8058953f-3350-4e69-a47d-a28ee9db4380
This occurrence is located in Kobuk Valley National Park.
Location: This occurrence is on the Salmon River at an elevation of about 650 feet. It is in section 5, T. 26 N ., R. 5 W., of the Kateel River Meridian. Cobb (1972, MF-386), location 3, and Schmidt and Allegro (1988), location 123.
Geology: The area of this occurrence is underlain by north-trending, lower to mid-Paleozoic sedimentary and metamorphic rocks (Schmidt and Allegro, 1988). Stream float and bedrock consist of graphitic schist, chloritic schist, light-colored quartz-mica schist and abundant quartz. The mineral occurrence consists of chalcopyrite-bearing quartz veins in graphite-chlorite phyllite. The veins are from 3 inches to 3 feet thick and 100 to 250 feet long. Stringers and blebs of pyrite and chalcopyrite, along with some malachite occur in the quartz veins. A sample of quartz stream float contained more than 20,000 ppm Cu, 6 ppm Ag, and 80 ppb Au. Another sample of chalcopyrite-bearing stream float contained 8,200 ppm Cu, 11 ppm Ag, and 5 ppb Au. Twelve stream silt samples were analyzed and no significant metal values were found (Degenhart and others, 1978). Rock samples collected in the mid-1960's contain from 60 ppm to 2% Cu, 12 to 94 ppm Pb, 6 to 11 ppm Ag, and 5 to 80 ppb Au (Brosge and others, 1967).
Workings: Some evidence of placer exploration in the area was noted by Degenhart and others (1978). The U.S. Bureau of Mines investigated the area in the mid-1970's (Degenhart and others, 1978). They collected two rock samples and 12 stream silt samples. The area was also mapped and sampled by the U.S. Geological Survey (Brosge and others, 1967).
Age: Mid-Paleozoic?
Commodities (Major) - Cu; (Minor) - Ag
Development Status: None
Deposit Model: Chalcopyrite-bearing quartz veins in a graphite-chlorite phyllite.
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:
β Chalcopyrite Formula: CuFeS2 |
β Malachite Formula: Cu2(CO3)(OH)2 |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Malachite | Cu2(CO3)(OH)2 |
C | Carbon | |
C | β Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | β Malachite | Cu2(CO3)(OH)2 |
O | β Quartz | SiO2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Pyrite | FeS2 |
Fe | Iron | |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Malachite | Cu2(CO3)(OH)2 |
Other Databases
Link to USGS - Alaska: | BM014 |
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Other Regions, Features and Areas containing this locality
North America
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Brooks Range DomainDomain
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