Unnamed Occurrence (ARDF - ID042; southwest of Mount Joaquin), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID042; southwest of Mount Joaquin) | - not defined - |
| Iditarod Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
62° 50' 28'' North , 156° 11' 38'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This placer occurrence is near the head of a stream that flows southeast from Mount Joaquin. The stream was sampled at an elevation of about 900 feet, about 0.5 mile north of the center of section 27, T. 32 N., R. 37W., of the Seward Meridian. The location is accurate.
Geology: This stream locally contains gold-bearing gravel (Bundtzen and Laird, 1983; Miller and Bundtzen, 1994, and Miller, Bundtzen, and Gray, 2005). The U.S. Geological Survey found abundant heavy minerals in a panned concentrate taken from the stream at an elevation of about 900 feet (Bennett and others, 1988). The nonmagnetic heavy mineral fraction of the sample contained less than 1 percent visible gold, 1 to 5 percent cinnabar, and 1 to 5 percent scheelite (Bennett and others, 1988). The Mount Joaquin cinnabar-arsenic(-gold) prospect (ID041) is upstream from this site.
Workings: Panned-concentrate samples were collected by the U.S. Geological Survey in 1985 and 1986 (Bennett and others, 1988).
Commodities (Major) - Au; (Minor) - Hg, W
Development Status: None
Deposit Model: Placer Au deposit (Cox and Singer, 1986; model 39a).
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
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Scheelite | Ca(WO4) |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
Other Databases
| Link to USGS - Alaska: | ID042 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
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.
