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1Published 1998“...Fact sheet (Geological Survey (U.S.)) ;...”
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2Published 1998“...Fact sheet (Geological Survey (U.S.)) ;...”
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3Published 1998“...Fact sheet (Geological Survey (U.S.)) ;...”
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4Published 1998“...Fact sheet (Geological Survey (U.S.)) ;...”
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5Published 1997“...Fact sheet (Geological Survey (U.S.)) ;...”
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6Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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7Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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8Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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9Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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10Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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11Published 1999“...Fact sheet (Geological Survey (U.S.)) ;...”
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12Published 1995“...Fact sheet (Geological Survey (U.S.)) ;...”
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13Published 1995“...Fact sheet (Geological Survey (U.S.)) ;...”
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14by Hunt, R. J.“...Fact sheet (Geological Survey (U.S.)) ;...”
Published 1996
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15Published 1997“...Fact sheet (Geological Survey (U.S.)) ;...”
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16by Wanty, Richard B.“...Fact sheet (Geological Survey (U.S.)) ;...”
Published 1997
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17Published 1997“...Fact sheet (Geological Survey (U.S.)) ;...”
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18by Çelebi, Mehmet“...Fact sheet (Geological Survey (U.S.)) ;...”
Published 1996
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19Published 1995“...Fact sheet (Geological Survey (U.S.)) ;...”
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20Published 1996“...Fact sheet (Geological Survey (U.S.)) ;...”
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