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Stamp sand, photographed near Houghton, MI. Stamp sand is a coarse sand left over from the processing of ore in a stamp mill. [1] In the United States, the most well-known deposits of stamp sand are in the Copper Country of the Upper Peninsula of Michigan, where it is black or dark gray, and may contain hazardous concentrations of trace metals.
Michigan Department of Environmental Quality. Archived (PDF) from the original on September 22, 2012; Hamblin, W. M. Kenneth (1958a). The Cambrian Sandstones of Northern Michigan (PDF) (Report). State of Michigan Department of Conservation, Geological Survey Division. pp. 2– 18. Archived (PDF) from the original on December 24, 2011
The thickness of the Salina Group varies greatly within the two basins, ranging from 84 feet in the southwestern corner of Michigan to an estimated 5,000 feet in that state's Gladwin County. [ 3 ] This formation is of economic importance for salt mining , oil reservoir creation, [ 4 ] gypsum mining, [ 5 ] and potential natural gas storage. [ 6 ]
Geelwal Karoo mineral sand deposit, on the west coast of South Africa. Tectonic activity, which results in coastlines rising from the ocean, may also cause a beach system to become stranded above the high-water mark and lock in the heavy mineral sands. Similarly, a beach system that is drowned by the subsidence of a coastline may be preserved ...
Nov. 30—Except for the oil and natural gas themselves, one of the oilfield's hottest commodities these days is the sand used to fracture or "frac" the bedrock formations and loosen them up for ...
Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper
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This is a list of Superfund sites in Oklahoma designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations. [1]