Unnamed Occurrence (ARDF - SB015; near Hag Peak on Kupreanof Peninsula), Lake and Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SB015; near Hag Peak on Kupreanof Peninsula) | - not defined - |
| Lake and Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
55° 42' 0'' North , 159° 32' 24'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Perryville | 113 (2015) | 34.0km |
The site is on the Alaska Peninsula National Wildlife Refuge.
Location: The map site of this occurrence is at an elevation of about 500 feet on Kupreanof Peninsula, about 0.4 mile north of Hag Peak. It is referred to as SBRGX-41 in Wilson and others (1988, locality 15). The location is accurate to within 1 mile.
Geology: This occurrence is in bedded rocks of the Paleocene to Eocene Stepovak Bay Formation, near a small diorite or quartz diorite intrusion (Wilson and others, 1995). Wilson and others (1988) describe altered volcanic andesitic(?) breccia cut by a series of N 70 E-trending vertical shear zones. Some of the shears contain mineralized quartz veins. Alteration appears along shears and extends for approximately 600 feet along the beach east of the map site (Wilson and others, 1988). Rock samples collected by the U.S. Geological Survey in the mid-1980s were reported to be anomalous in silver, lead, zinc, arsenic, and bismuth (Angeloni and others, 1985; Wilson and others, 1988).
Workings: Rock samples 83AWs85-86 collected by the U.S. Geological Survey in the mid-1980's were reported tp be anomalous in silver, lead, zinc, arsenic, and bismuth (Angeloni and others, 1985; Wilson and others, 1988).
Age: Tertiary.
Alteration: Alteration consists of pink to tan bleaching of originally dark-green andesitic(?) breccia.
Commodities (Major) - Ag, Pb, Zn; (Minor) - As, Bi
Development Status: None
Deposit Model: Polymetallic veins (Cox and Singer, 1986; model 22c)
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: | SB015 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Chugach DomainAccretionary Complex
- East Aleutian ArcVolcanic Arc
Pacific OceanOcean
USA
- Alaska
- Alaska Peninsula Mining DistrictMining District
- Aleutian Range
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