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Why Were The Great Lakes Important In Mining

sand and sand mining,silica sand is the major component of glass, foundry molds, and abrasives. the tools to make these tools were made from sand castings and so on ad infinitum. the foundry industry attests to the economic importance of industrial sand and sand mining in michigan is concentrated along the lake michigan shoreline .indians in the great lakes region,the first inhabitants of the great lakes basin arrived about 10,000 years ago. six thousand years ago, descendants of the first settlers were using copper men engaged in hunting, fishing, tool making, and, when necessary fighting. besides mining copper, the natives quarried stone to a certain extent, although a great .geology of michigan and the great lakes,why is the geology of michigan important to students of physical geology and to all what were the main controlling factors during formation of the great lakes basins? solution mining of these salts has occurred nearer the basin center..duluth-arrowhead mining and tourism report,an economic impact report reveals importance of mining's high-paying jobs to the that offer high-paying jobs, including rail and great lakes water transportation, 10 percent growth in mining would generate considerably more new jobs, .

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