Log In
Unnamed Occurrence (ARDF - SM063; southwest edge of Buckstock Mountains), Aniak Mining District, Bethel Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SM063; southwest edge of Buckstock Mountains) | - not defined - |
| Aniak Mining District | Mining District |
| Bethel Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
61° 9' 11'' North , 158° 51' 7'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Chuathbaluk | 125 (2017) | 51.0km |
Location: This occurrence is on the summit of a prominent, northeast-trending ridge at the head of two, north-flowing, unnamed tributaries of the Aniak River. The occurrence is at an elevation of about 1,800 feet, about 0.7 mile southwest of hill 2303 near the southwest corner of section 3, T. 12 N., R. 54 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is a vuggy quartz vein that cuts sedimentary rocks of the Mesozoic Gemuk Group, adjacent to a large, sericitized, felsic dike (Cady and others, 1955; T.K. Bundtzen, unpublished field data, 1999). The dike strikes northeast and dips about 40N; the quartz vein parallels the dike. One grab sample of the quartz vein contained 63 parts per billion (ppb) gold, 4,000 ppb silver, and 21 parts per million (ppm) bismuth. A sample of gossan collected in a dike swarm to the north of the this occurrence contained 188 ppm arsenic, 338 ppm copper, and 230 ppm zinc (D. Bradley, unpublished analytical data, 1999).
Workings: The U.S. Geological Survey investigated the occurrence in 1999.
Age: Unknown. Miller and others (2002) report a U-Pb age of 59.2 Ma from the Buckstock pluton.
Alteration: Sericite in felsic dike.
Commodities (Major) - Ag, Au; (Minor) - Bi
Development Status: None
Deposit Model: Polymetallic vein? (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
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: | SM063 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Koyukuk ArcsVolcanic Arc
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
