Unnamed Occurrence (ARDF - BN120; in the headwaters of French Creek), Fairhaven Mining District, Northwest Arctic Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - BN120; in the headwaters of French Creek) | - not defined - |
| Fairhaven Mining District | Mining District |
| Northwest Arctic Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 27' 14'' North , 162° 32' 31'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on the crest of the continental divide in the headwaters of French Creek. It is about 1,000 feet east of elevation 1,223 on the divide. This is locality 34 of Gamble (1988).
Geology: Quartz-hematite (?) veins and gossan zones in marble are developed near a small fault (Gamble, 1988). A sample of gossan contained 20 % Fe, 1,100 ppm As, 270 ppm Zn, 80 ppm Sb, and 10 ppm Mo. A sample of the veins contained 1,400 ppm Zn and 250 ppm As. The marble is Lower Paleozoic in age (Till and others, 1986).
Workings: There are no known workings here.
Age: Cretaceous ?; Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age.
Alteration: The occurrence is oxidized; gossan is well developed.
Commodities (Major) - Zn
Development Status: None
Deposit Model: Quartz veins in marble
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Hematite ? Formula: Fe2O3 |
| ⓘ 'Limonite' |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite ? | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
Other Databases
| Link to USGS - Alaska: | BN120 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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