PMRGX-25 Occurrence, Aleutians East Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| PMRGX-25 Occurrence | Occurrence |
| Aleutians East Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
55° 35' 9'' North , 160° 52' 37'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sand Point | 1,064 (2017) | 36.5km |
This site is on land selected by the Aleut Corporation.
Location: The map site of this occurrence is at an elevation of 1,800 feet, about 2.0 miles east of Beaver River and 3.1 miles north of Beaver Bay. It is referred to as PMRGX-25 by Wilson and others (1988, locality 73). The location is accurate to within 2,500 feet.
Geology: At this site a dark shale member of the Upper Cretaceous Hoodoo Formation is cut by quartz veinlets and by an andesite sill containing disseminated pyrite (Wilson and others, 1988; 1995). The occurrence is on the periphery of a diorite(?) plug or sill that crops out to the east. Four samples collected by the U.S. Geological Survey in the mid-1980's were reported to be anomalous in arsenic, barium, copper, and zinc (Wilson and others, 1988).
Workings: Rock samples 85AYB719-720 and 85AWS303 and 305, collected by the U.S. Geological Survey in the mid-1980s, were reported to be anomalous in arsenic, barium, copper, and zinc (Wilson and others, 1988).
Commodities (Major) - Cu, Zn; (Minor) - As, Ba
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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | PM017 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- East Aleutian ArcVolcanic Arc
- Peninsular-Talkeetna DomainDomain
USA
- Alaska
- Alaska Peninsula Mining DistrictMining District
- Aleutian Range
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