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Kasota limestone or simply, 'Kasota stone,' is a dolomitic limestone found in southern Minnesota. This sedimentary rock is part of the Oneota Dolostone Formation of southern Minnesota and is approximately 450 million years old (lower Ordovician Period). This particular limestone is rich in dolomite and magnesium, making it resistant to weathering, and it is thus widely used as a building material. Its name is taken from Kasota Township where the stone has been quarried. ==Buildings== * Target Field, the home of the Major League Baseball Minnesota Twins in Minneapolis, Minnesota. * Philadelphia Museum of Art, Philadelphia, PA, completed 1928 * Gustavus Adolphus College's original "Old Main" building (St. Peter, MN, USA), completed in 1876. * Smithsonian National Museum of the American Indian, in Washington, DC. * Liberty Memorial and National World War I Museum, Kansas City, MO. * University of St. Thomas's Minneapolis campus, Minneapolis, MN. * Minnesota State Capitol interior walls, St. Paul, MN, completed in 1905. * Alan I W Frank House external facade; designed by Walter Gropius and Marcel Breuer in 1939. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kasota limestone」の詳細全文を読む スポンサード リンク
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