Unnamed Occurrence (ARDF - EA107; head of Ingle Creek), Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - EA107; head of Ingle Creek) | - not defined - |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 6' 32'' North , 142° 0' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is located near the head of Ingle Creek in about the center of the N1/2 section 23, T. 27 N., R 17 E., of the Copper River Meridian. The location is accurate to within 1 mile.
Geology: The rocks along Ingle Creek are primarily upper Paleozoic greenschist-facies metasedimentary and metavolcanic rocks that have been intruded by granitic rocks that are either related to the Taylor Mountain batholith of Triassic age to the south or the Chicken pluton of Jurassic age that crops out at the head of the valley (Werdon and others, 2001). These units have been cut by numerous high-angle faults. In the lower part of Ingle Creek, Tertiary gabbro is overlain by tuffaceous material and sparse shale. Quaternary colluvium and alluvium are present in the lower valley. Free gold occurs in quartz and calcite veins here (Smith, 1968). The occurrence is about 3 miles west of the Purdy lode gold mine (EA121), which is a similar deposit of gold in quartz and calcite veins.
Commodities (Major) - Au
Development Status: None
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | EA107 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Yukon-TananaVolcanic Arc
- Yukon-Tanana upper DomainDomain
USA
- Alaska
- Fortymile Mining DistrictMining District
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