Unnamed Occurrence (ARDF - PM046; east of Zachary Bay), Aleutians East Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - PM046; east of Zachary Bay) | - not defined - |
| Aleutians East Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
55° 22' 12'' North , 160° 33' 36'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sand Point | 1,064 (2017) | 5.4km |
This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.
Location: The map site of this approcimately located occurrence is at an elevation of about 450 feet, about midway between North and West Heads, on Unga Island east of Zachary Bay (Christie, 1974, color anomaly 78?; MacKevett and Holloway, 1977, locality 17; Wilson and others, 1988, locality 17). The location is accurate to within 2 miles.
Geology: This occurrence is in rocks mapped as Popof volcanic rocks of late Eocene to early Oligocene age (Wilson and others, 1995). It is described as an altered zone in Tertiary volcanic rocks by MacKevett and Holloway (1977). The occurrence may correspond to Christie's (1974) color anomaly 78, which he describes as being 3,000 feet in diameter and consisting of pyrite and minor pyrrhotite in fractured volcanic rocks. Gold is herein speculatively listed as a commondity, based on its occurrence elsewhere in the Popov volcanic rocks.
Workings: Christie (1974) made a brief examination and collected one silt sample. It did not contain anomalous amounts of any commodities.
Age: Eocene or younger.
Alteration: Christie (1974) describes the alteration as argillic, but provides no details.
Commodities (Major) - Au?
Development Status: None
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
Other Databases
| Link to USGS - Alaska: | PM046 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainAccretionary Complex
- East Aleutian ArcVolcanic Arc
USA
- Alaska
- Alaska Peninsula Mining DistrictMining District
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