Silica-carbonate rock, Red Devil mine, Sleetmute area, Kuskokwim region, Alaska, ca. 1943.
Dates
Date Taken
1943
Summary
Silica-carbonate rock exposed at the Red Devil mine, Sleetmute area. The silica-carbonate rock (s-c) trends roughly parallel to the bedding of the shale(sh), which is heavily fractured and locally brecciated; vein quartz (q) fills the openings in the shale, and cinnabar occurs in veins and irregular openings within and at the contacts of the silica-carbonate rock. Kuskokwim region, Alaska, ca. 1943. Published in U.S. Geological Survey Professional paper 268, Plate 9. 1955.
Summary
Silica-carbonate rock exposed at the Red Devil mine, Sleetmute area. The silica-carbonate rock (s-c) trends roughly parallel to the bedding of the shale(sh), which is heavily fractured and locally brecciated; vein quartz (q) fills the openings in the shale, and cinnabar occurs in veins and irregular openings within and at the contacts of the silica-carbonate rock.
Kuskokwim region, Alaska, ca. 1943.
Published in U.S. Geological Survey Professional paper 268, Plate 9. 1955.
Image located in the U.S.Geological Survey Photographic Collection, Cady, W.M. Collection album, volume 1, no.246.
Rights
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