Unnamed Occurrence (ARDF - ID143; east of Little Waldren Fork), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID143; east of Little Waldren Fork) | - 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° 28' 57'' North , 156° 47' 16'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on an elongate, northwest-trending ridge about 2 miles east of the Little Waldren Fork of the Takotna River. The occurrence is at an elevation of about 1,400 feet. It is about 0.1 mile west of hill 1456 in the SE1/4 SE1/4, section 25, T. 28 N., R. 41 W., Seward Meridian. The location is accurate.
Geology: This occurrence consists of a zone of secondary hematite in a heavily iron-oxide-stained, sericitically altered sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The hematite zone is up to 6 feet thick and is of uncertain length and orientation. A grab sample contained more than 20.00 percent iron, 200 parts per million (ppm) antimony, 100 ppm arsenic, 180 ppm zinc, and 100 ppm nickel (McGimsey and others, 1988).
Workings: Samples were collected by the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Alteration: Sericitic alteration of sandstone.
Commodities (Major) - Fe, Sb; (Minor) - As, Ni, Zn
Development Status: None
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 | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
Other Databases
| Link to USGS - Alaska: | ID143 |
|---|
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.
