Unnamed Occurrence (ARDF - WI021; east of the north end of Wild Lake), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
67° 32' 11'' North , 151° 29' 5'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is located on a ridge about 1 mile east of Wild Lake, between the head of Surprise Creek and the north end of Wild Lake. The occurrence is at an elevation of about 3,000 feet in the NE1/4 SE1/4 section 2, T. 31 N., R. 18 W., of the Fairbanks Meridian. Several sample locations (Chipp, 1972, samples 116 and 117; Kurtak and others, 1999, samples 46, 47, and 48) were collected for about 4,000 feet northeast from this occurrence. The location is accurate.
Geology: This occurrence consists of quartz-calcite-ankerite(?) veins with varying amounts of bornite, malachite, or chalcopyrite (Chipp, 1972, sample 116 and 117; Kurtak and others, 1999, sample 46). One of Chipp's samples contains 2,700 ppm copper, 0.14 ppm gold, and 3.1 ppm silver. Sample of quartz veins collected by Kurtak and others (1999, samples 46, 47, and 48 contain copper minerals but analysis of these samples showed no significant metal values. The rocks in the area are Devonian schist and phyllite (Dillon and others, 1986). No other information is available.
Workings: Only surface sampling.
Commodities (Major) - Cu; (Minor) - Ag, Au
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
6 valid minerals.
Detailed Mineral List:
| ⓘ Ankerite ? Formula: Ca(Fe2+,Mg)(CO3)2 |
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Ankerite ? | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS - Alaska: | WI021 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Brooks Range DomainVolcanic Arc
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