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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 ]
Kalkaska sand is the official soil of the U.S. state of Michigan. Kalkaska sand was identified in 1927 and named after Kalkaska County located in the northern Lower Peninsula of Michigan. This soil is a multi-layer soil composed of humus, light sand, dark sand, and yellowish sand. It is classified as a spodosol. The distinctive sand layers can ...
Portland Brownstone Quarries, Portland, Connecticut, NRHP-listed, source of much of the brownstone used in New York City, Boston, Philadelphia; Luman Andrews House, Southington, Connecticut, NRHP-listed. Identified in 1825 to be a site of blue limestone, suitable for making Portland cement, which previously had to be imported from England
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 ...
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Geographic Landscape of Oklahoma; Wichita Mountains . The geology of Oklahoma is characterized by Carboniferous rocks in the east, Permian rocks in the center and towards the west, and a cover of Tertiary deposits in the panhandle to the west. The panhandle of Oklahoma is also noted for its Jurassic rocks as well.
The Gogebic Range is an elongated area of iron ore deposits located within a range of hills in northern Michigan and Wisconsin just south of Lake Superior. It extends from Lake Namakagon in Wisconsin eastward to Lake Gogebic in Michigan, or almost 80 miles.
Geologic map of the Michigan Basin. The Michigan Basin is a geologic basin centered on the Lower Peninsula of the U.S. state of Michigan.The feature is represented by a nearly circular pattern of geologic sedimentary strata in the area with a nearly uniform structural dip toward the center of the peninsula.