|
Dry Screening manganese ore fragments from the soil at the C.F.I. mine, southeast of Green River. Much of the manganese ore produced in this region is found as loose fragments that commonly range in size from that of a peanut to that of a base ball. In places these fragments rather closely pave the surface, generally they are mixed with a foot, more or less, of loose sandy soil. These ore fragments were originally parts of a thin horizontal bed of manganese oxides. Lowering of the surface by erosion, in which wind deflation has played a large part, exposed the manganiferous layer that became broken into fragments but was not comminuted sufficiently to be removed by the wind. As the more friable sandstone that adjoins...
Categories: Image;
Tags: C.F.I. Company mine,
Grand County, Utah,
Mills, Mines, Quarries,
Pardee, J.T. Collection,
Photographers, All tags...
photo print, Fewer tags
|
Haile pit, Haile Gold mine: Standing remnant of diabase dike in foreground. Lancaster County, South Carolina. July 1934. Plate 34-C, U.S.Geological Survey Professional paper 213. 1948.
|
Northwest joint face; Brewer pit, Brewer gold mine. Chesterfield County, South Carolina. July 1934. Plate 34-A , U.S.Geological Survey Professional paper 213. 1948.
|
Form a panorama of folds in bedded tuff (volcanic series), east of Monroe, Union County, North Carolina. March 1934. Plate 4-B, U.S.Geological Survey Professional paper 213. 1948.
|
Gold ore from 250-foot level, quartz (light) introduced along deformed bedding plane. Union County, North Carolina. 1935. Plate 9-A, U.S.Geological Survey Professional paper 213. 1948.
|
View more...
|