Unnamed Occurrence (ARDF - SD029; northeast of Taylor Lake), Petersburg Mining District, Hoonah-Angoon Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SD029; northeast of Taylor Lake) | - not defined - |
| Petersburg Mining District | Mining District |
| Hoonah-Angoon Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
57° 37' 22'' North , 133° 23' 34'' West
Latitude & Longitude (decimal):
Köppen climate type:
The occurrence is in the Chuck River Wilderness Area which is closed to mineral exploration and mining.
Location: This occurrence is about 1.1 mile north-northeast of the north end of Taylor Lake. It is about 0.2 mile northwest of the center of section 16, T. 49 S., R. 75 E.
Geology: A 2- to 3-foot-thick quartz vein is exposed on a cliff on the bank of a stream. The vein appears to crosscut the foliation of the graphitic schist host rock (Kimble and others, 1984). A representative sample of the vein contained 15 ppm silver, 0.15 ppm gold, 1,300 ppm lead, and 250 ppm zinc. The host rocks are part of the Cretaceous hornblende schist unit of Brew and Grybeck (1984).
Workings: No work other than sampling by government geologists.
Age: Cretaceous or younger based on the age of the host rock.
Development Status: None
Deposit Model: Low-sulfide, gold-quartz vein (Cox and Singer, 1986; model 39a).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
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: | SD029 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Taku DomainDomain
- Yukon-TananaVolcanic Arc
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