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2by Spitz, Frederick J.“...U.S. Geological Survey,...”
Published 2007
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3Published 2007“...U.S. Geological Survey,...”
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4by Wilson, Timothy P.“...U.S. Geological Survey,...”
Published 2007
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5by Bonin, Jennifer L.“...U.S. Geological Survey,...”
Published 2006
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6by Schopp, Robert D.“...U.S. Geological Survey,...”
Published 2008
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7by Summer, William M.“...[U.S. Geological Survey],...”
Published 1998
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8by Summer, William M.“...[U.S. Geological Survey],...”
Published 1998
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9by Spitz, Frederick J.“...U.S. Geological Survey,...”
Published 2009
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10by Nichols, William D.“...U.S. Geological Survey,...”
Published 1977
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11by Luzier, J. E.“...U.S. Geological Survey,...”
Published 1980
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12by Nawyn, John P.“...U.S. Geological Survey,...”
Published 1998
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13by DePaul, Vincent T.“...U.S. Geological Survey,...”
Published 1996
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14
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15by Walker, Richard L.“...U.S. Geological Survey,...”
Published 1983
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16
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17by Schaefer, F. L.“...[U.]S. Geological Survey,...”
Published 1983
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18
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19by Fusillo, Thomas V.“...U.S. Geological Survey,...”
Published 1981
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