Unnamed (in the headwaters of French Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Zn
Gangue minerals hematite; limonite; quartz

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale B-2
Latitude 65.454
Longitude -162.542
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the crest of the continental divide in the headwaters of French Creek. It is about 1,000 feet east of elevation 1,223 on the divide. This is locality 34 of Gamble (1988).

Geologic setting

Geologic description

Quartz-hematite (?) veins and gossan zones in marble are developed near a small fault (Gamble, 1988). A sample of gossan contained 20 % Fe, 1,100 ppm As, 270 ppm Zn, 80 ppm Sb, and 10 ppm Mo. A sample of the veins contained 1,400 ppm Zn and 250 ppm As. The marble is Lower Paleozoic in age (Till and others, 1986).
Geologic map unit (-162.544656307185, 65.4533042860439)
Mineral deposit model Quartz veins in marble
Age of mineralization Cretaceous ?; Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age.
Alteration of deposit The occurrence is oxidized; gossan is well developed.

Production and reserves

Workings or exploration There are no known workings here.
Indication of production None