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Unnamed Occurrence (ARDF - NB070; west of lower Ramshole Creek), Chisana Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - NB070; west of lower Ramshole Creek) | - not defined - |
| Chisana Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 7' 20'' North , 142° 21' 10'' West
Latitude & Longitude (decimal):
Köppen climate type:
The occurrence is in the Wrangell-St. Elias National Preserve.
Location: This occurrence is on the nose of the ridge along the west side of lower Ramshole Creek. It is at an elevation about 5,500 feet, 2,200 feet west of Ramshole Creek. The occurrence is in the SW1/4 of section 17, T. 4 N., R. 17 E. of the Copper River Meridian. This record includes National Park Service locality WRST-52 (unpublished data) which is approximately located on Ramshole Creek. This occurrence is probably located to within several thousand feet.
Geology: Richter and Matson (1969) found massive, dark- gray barite float at this site; the float is probably nearly in place. National Park Service locality WRST-52 (unpublished data) is identified as a gold prospect here or near here. Bedrock in the area is siliciclastic sedimentary rocks of the Permian Eagle Creek Formation (Richter, 1976). Triassic gabbro intrusions are common in this formation and locally make up to 70 percent of the section (Richter, 1971 [I-655]).
Workings: Probably only surface examination.
Age: Permian? May be the age of the host sedimentary rocks.
Commodities (Major) - Au, Ba
Development Status: None
Deposit Model: Stratiform or vein barite?
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Baryte | BaSO4 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | NB070 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
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