Unnamed (ARDF - MC152; east of Toby Creek), Nizina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed (ARDF - MC152; east of Toby Creek) | - not defined - |
| Nizina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 27' 20'' North , 142° 10' 33'' West
Latitude & Longitude (decimal):
Köppen climate type:
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This occurrence is on the ridge north of the glacier at the head of Toby Creek (MacKevett and Smith, 1972). It is at an elevation of about 8,000 feet near the northwest corner of section 10, T. 5 S., R. 18 E. of the Copper River Meridian. This is locality 63 of MacKevett (1976); the location is accurate to within about 100 feet.
Geology: This occurrence consists of a 1- to 3-meter-wide altered zone is at the contact between Permian or Triassic gabbro and Permian sedimentary rocks (MacKevett and Smith, 1972; MacKevett, 1976). A sample of the altered rocks contained 2 parts per million (ppm) silver and 20,000 ppm copper.
Workings: Limited surface sampling.
Age: Permian or younger based on the age of the host rocks.
Commodities (Major) - Cu; (Minor) - Ag
Development Status: None
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | MC152 |
|---|
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