Endy Prospect, Haines, Alaska, USAi
| Regional Level Types | |
|---|---|
| Endy Prospect | Prospect |
| Haines | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 49' 20'' North , 135° 34' 22'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The Endy prospect is at an elevation of about 2,700 feet, approximately 2.5 miles south of Mt. Young and 1 mile north of the Endicott River. It is in the NE1/4 section 21, T. 35 S., R. 59 E. of the Copper River Meridian. The location is accurate within 1/2 mile.
Geology: The area is underlain by deformed and metamorphosed Silurian or Devonian carbonate, clastic and volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic rocks (Brew and others, 1992). Brew and Ford (1985) describe the rocks in the area of this occurrence as predominantly Devonian and Silurian greenstone, greenschist, limestone and graywacke intruded by Cretaceous biotite-hornblende granodiorite. The U.S. Bureau of Mines collected samples of rhyolite, pyritic tuff, and metatuff from the Endy prospect. A rhyolite sample contained 0.21 ppm gold, 270 ppm copper, 930 ppm chromium, and 330 ppm arsenic. A sample of a quartz vein contained 1,400 ppm copper. The deposit was discovered by St. Joseph Mining Co. in 1974, who interpreted it as a stratiform massive sulfide deposit (Clough and Redman, 1989).
Workings: The deposit was discovered by St. Joseph Mining Co. in 1974 (Clough and Redman, 1989).
Commodities (Major) - Cu; (Minor) - Au, Cr, Zn
Development Status: None
Deposit Model: Possible metamorphosed Kuroko massive sulfide deposit (Cox and Singer, 1986; mo
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | JU054 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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