Unnamed (south of Taylor Mountains)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Au
Other commodities Ag; Hg
Ore minerals arsenopyrite; cinnabar; gold; pyrite
Gangue minerals quartz; tourmaline

Geographic location

Quadrangle map, 1:250,000-scale TA
Quadrangle map, 1:63,360-scale D-4
Latitude 60.86
Longitude -157.38
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is reported to be about 1 mile south of the upper Taylor Creek airstrip (T.K. Bundtzen, personal commun., 1992). For this record, the map site is at an elevation of 1,400 feet in the NE1/4 of section 23, T 9 N, R 46 W, of the Seward Meridian. It is very approximately located, perhaps within a mile.

Geologic setting

Geologic description

T. K. Bundzten (personal communication, 1992) reports that disseminated arsenopyrite, cinnabar, pyrite, and minor gold are in hypabyssal rhyolite about 1 mile south of the Taylor Creek airstrip. Sparse sulfides are also in quartz-tourmaline veinlets that cut the rhyolite. Cady and others (1955, p. 71, plate 1) noted east-west-trending rhyolite dikes or sills on the ridges just west of lower Forks Creek, about about 2.5 miles east-northeast of this occurrence. The felsic hypabyssal rocks intrude mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group.
Geologic map unit (-157.382295848168, 60.8592989947649)
Mineral deposit model Sulfide-bearing veins in or near felsic hypabyssal intrusive rocks
Age of mineralization Late Cretaceous or Early Tertiary, the age of felsic plutons in southwest Alaska that intrude the mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group.
Alteration of deposit Quartz-tourmaline veining is present.

Production and reserves

Workings or exploration Some surface examination and sampling has occurred but the nature of any additional work is not known.
Indication of production None

References