Unnamed (Kougarok River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale C-6
Latitude 65.67
Longitude -164.8
Nearby scientific data Find additional scientific data near this location
Location and accuracy This location is approximately located, probably within one mile. Smith (1908) reports it to be a lode occurrence near the mouth of Taylor Creek. Taylor Creek is a major east tributary to Kougarok River. The mouth of Taylor Creek is 1,000 feet north of the termination of the Nome-Taylor road at Taylor. This is locality 1 of Cobb (1972; MF 417; 1975; OFR 75-429).

Geologic setting

Geologic description

Smith (1908, p, 244) reports that copper sulfides (chalcopyrite?) are present in metamorphosed limestone (marble) on Kougarok River somewhere near the mouth of Taylor Creek. Bedrock in the upper Kougarok River area is part of a lower Paleozoic metasedimentary assemblage (Sainsbury and others, 1969; Till and others, 1986).
Geologic map unit (-164.802694748109, 65.669274891789)
Mineral deposit model Chalcopyrite in marble?
Age of mineralization Unknown; if epigenetic then perhaps Cretaceous. The major episode of epigenetic mineralization on Seward Peninsula accompanied higher temperature metamophism and mid- to Late Cretaceous granitic plutonism in the region.

Production and reserves

Workings or exploration No workings are known for this occurrence.
Indication of production None

References