Cub Creek Mine, Fairhaven Mining District, Northwest Arctic Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Cub Creek Mine | Mine |
| Fairhaven Mining District | Mining District |
| Northwest Arctic Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 30' 36'' North , 161° 1' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Buckland | 431 (2017) | 52.3km |
Stream gradient 50 to 75 feet per mile.
Location: The Cub Creek placer mine is along lower Cub Creek, a tributary to Bear Creek. The map site is in section 6, T. 1 N., R. 11 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), location 31.
Geology: Bedrock in the general area of the Cub Creek mine includes syenite of the Late Cretaceous Granite Mountain pluton, and, in the lower portion of the creek, Jurassic-Cretaceous andesite and greenstone. Creek boulders are largely syenite, monzonite, or diorite. The deposit is a gold placer; gold is distributed through 2 feet of gravel overlying bedrock. The gold is fine and flaky and assays $19.20 per ounce (gold at $20.67/ounce) (Harrington, 1919). Concentrates contain a little pyrite and abundant magnetite (Moffit, 1905). Gault and others (1953) found uranothorianite in the placer concentrates on Cub Creek and its headwaters.
Workings: Some prospecting cuts were made in 1964, but there was no mining at that time.
Age: Quaternary.
Commodities (Major) - Au; (Minor) - Radioactive minerals
Development Status: Yes; small
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Gold Formula: Au |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Thorianite Formula: ThO2 |
| ⓘ Thorianite var. Uranothorianite Formula: (Th,U)O2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Thorianite | 4.DL.05 | ThO2 |
| ⓘ | var. Uranothorianite | 4.DL.05 | (Th,U)O2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Thorianite | ThO2 |
| O | ⓘ Thorianite var. Uranothorianite | (Th,U)O2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Th | Thorium | |
| Th | ⓘ Thorianite | ThO2 |
| Th | ⓘ Thorianite var. Uranothorianite | (Th,U)O2 |
| U | Uranium | |
| U | ⓘ Thorianite var. Uranothorianite | (Th,U)O2 |
Other Databases
| Link to USGS - Alaska: | CA024 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Koyukuk-Selawik DomainDomain
- Koyukuk ArcsVolcanic Arc
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