Unnamed (near Flat Airstrip)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Hg
Ore minerals cinnabar
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale B-4
Latitude 62.45363
Longitude -157.98874
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is in the Otter Creek valley under the Flat airstrip which is about 0.7 mile east of the center of Flat. It is in the SE1/4 SE1/4, section 4, T. 27 N., R. 47 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence is a series of cinnabar-quartz veins. According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. There was a consistent north-trending orientation to the mineralized zone, but the dip of the veins is unknown (Bundtzen and others, 1992). The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the vein (T.K. Bundtzen, unpublished field data, 1985).
Geologic map unit (-157.991143304675, 62.4529458130774)
Mineral deposit model Hot springs Hg? (Cox and Singer, 1986; model 27a).
Mineral deposit model number 27a?

Production and reserves

Workings or exploration According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the veins (T.K. Bundtzen, unpublished field data, 1985).
Indication of production None

References