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1Published 1976“...U.S. Dept. of the Interior, Geological Survey,...”
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7by Moss, Marshall E.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1980
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8by Wentz, Dennis A.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1980
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9Published 1980“...U.S. Dept. of the Interior, Geological Survey,...”
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10by Twenter, F. R.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1981
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16Published 1980“...U.S. Dept. of the Interior, Geological Survey,...”
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17by Havens, John S.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1980
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20by Franks, Bernard J.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1980
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