Nike Prospect, Chisana Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Nike Prospect | Prospect |
| Chisana Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 13' 8'' North , 142° 45' 36'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The prospect is in the Wrangell-St. Elias National Preserve.
Location: This prospect is on the west fork of Bond Creek. It is at an elevation of about 3,900 feet, 6,600 feet northeast of peak 752, and 5,500 feet northwest of elevation 6805. The site is in the NE1/4 of section 14, T. 5 N., R. 14 E. of the Copper River Meridian. This is National Park Service locality WRST-33 (unpublished data) and the coordinates for this prospect were provided by the National Park Service.
Geology: An unpublished National Park Service map and accompanying database identify this locality as a copper-silver porphyry prospect. Eleven mining claims were once located here and there are numerous surface diggings and short shafts. The bedrock in this area is dominantly granitic rocks of the mid-Cretaceous Nabesna pluton (Richter, 1973). This pluton is locally intruded by dikes, small irregular bodies, and stocks of hornblende-plagioclase porphyry. This porphyry is considered to be Tertiary in age (Richter, 1973).
Workings: Eleven mining claims were once located here and there are numerous surface diggings and short shafts.
Age: Mid-Cretaceous? K/Ar ages for the Nabesna pluton range from 105 +/- 4.0 to 114 +/- 3.4 Ma (Richter and others, 1975; Richter, Lanphere, and Matson, 1975). Many varieties of hornblende-plagioclase porphyry form irregular intrusive bodies into the Nabesna pluton and other regional bedrock units in the area; the porphyry is considered to be Tertiary in age (Richter, 1973).
Alteration: Hydrothermal alteration like that at other porphyry copper prospects in the area (e.g. NB043) may be present.
Commodities (Major) - Ag, Cu
Development Status: None
Deposit Model: Porphyry Cu-Mo (Cox and Singer, 1986; model 21a)
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: | NB065 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
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