Timber Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities Ag; Au; Cu
Ore minerals malachite

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale B-1
Latitude 65.28
Longitude -162.28
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is very approximately located (probably within 2 miles) in the headwaters of Timber Creek, a south tributary to Koyuk River. The confluence of Timber Creek and its west tributary Nutmoyuk Creek (as shown on the Bendeleben B-1 quadrangle) is about 3 miles downstream of this location (the 1:250,000 Bendeleben quadrangle shows Timber Creek to be a tributary of Nutmoyuk Creek). This is locality 18 of Cobb (1972; MF 417; 1975; OFR 75-429).

Geologic setting

Geologic description

Copper-stained greenstone near a contact with limestone was apparently discovered and initially explored in 1906-1907 (Smith and Eakin, 1911). Shallow prospect pits were dug and some high-grade samples were taken that supposedly contained 17 to 70 ounces/ton Ag and about 0.05 ounces/ton Au. The location of this occurrence is uncertain but mafic metavolcanic rocks and Devonian marble are mapped in the headwaters of Timber Creek (Till and others, 1986).
Geologic map unit (-162.282636783, 65.2793037243652)
Mineral deposit model Copper-bearing greenstone
Age of mineralization If epigenetic, probably Cretaceous or younger.
Alteration of deposit Oxidation is well-developed.

Production and reserves

Workings or exploration Shallow prospect pits were apparently dug when the occurrence was first discovered.
Indication of production None

References