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1Published 1987“...U.S. Geological Survey bulletin ;...”
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2Published 1990“...U.S. Geological Survey bulletin ;...”
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3Published 1988“...U.S. Geological Survey bulletin ;...”
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4Published 1988“...U.S. Geological Survey bulletin ;...”
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5Published 1988“...U.S. Geological Survey bulletin ;...”
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6Published 1989“...U.S. Geological Survey bulletin ;...”
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7by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1987
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8by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1989
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9by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1990
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10by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1988
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11by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1988
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12by Vander Meulen, Dean B.“...U.S. Geological Survey bulletin ;...”
Published 1988
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