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Unnamed Occurrence (ARDF - GU029; north of Slope Creek), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - GU029; north of Slope Creek) | - not defined - |
| Chistochina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 47' 24'' North , 144° 0' 0'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Slana | 147 (2011) | 9.4km |
| Mentasta Lake | 112 (2011) | 18.7km |
Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.
Location: This occurrence is on the ridge about 1/4 mile north of Slope Creek on the boundary between the Gulkana D-1 quadrangle and the Nabesna D-6 quadrangle. It is an approximate location at the south end of an auriferous intrusion mostly exposed on the Nabesna D-6 quadrangle. It is in the SE1/4NE1/4, section 25, T. 12 N., R. 7 E., Copper River Meridian. The occurrence is within the 'area 2' anomalous zone of WGM Inc. (1980) and is within the Porcupine prospect area of Homestake Mining Company (Bull, Schneider and Freeman, 1997; Bull, Freeman, and Schneider, 1999).
Geology: The occurrence is at the south end of a linear, Jurassic diorite intrusive complex that continues north to north-northwest for about 2 miles (Richter, 1966; Richter and Matson, 1968). A soil sample contains more than 100 ppb gold, and the north-flowing stream draining the area of the occurrence contains 2,700 ppb gold in stream sediments. Stream sediment samples draining the entire 2-mile long intrusion are extremely anomalous in gold i.e., from 1,000 to greater than 2,000 ppb. The streams drain the intrusion and its contact region and the gold is almost certainly derived from mineral deposits in the intrusion or in its contact rocks.
Workings: The area has only been explored by reconnaissance methods.
Age: Probably related to the intrusion of a Jurassic diorite.
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
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | GU029 |
|---|
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