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1Published 1987“...U.S. Geological Survey bulletin ;...”
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2by Mamet, Bernard L.“...U.S. Geological Survey bulletin ;...”
Published 1993
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3by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1988
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4by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1987
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5
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6by Dubiel, Russell F.“...U.S. Geological Survey bulletin ;...”
Published 1989
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7by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1992
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8
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9
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10Published 1987“...U.S. Geological Survey bulletin ;...”
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11Published 1987“...U.S. Geological Survey bulletin ;...”
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12Published 1987“...U.S. Geological Survey bulletin ;...”
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13by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1987
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14by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1987
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15by Armstrong, Augustus K.“...U.S. Geological Survey bulletin ;...”
Published 1987
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