Unnamed (east of Little Waldren Fork)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Fe; Sb
Other commodities As; Ni; Zn
Ore minerals hematite

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale B-2
Latitude 62.48268
Longitude -156.78849
Nearby scientific data Find additional scientific data near this location
Location and accuracy 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.

Geologic setting

Geologic description

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).
Geologic map unit (-156.79086628226, 62.4820140129)
Alteration of deposit Sericitic alteration of sandstone.

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Indication of production None

References