You searched for: Author King, Philip B. Remove constraint Author: King, Philip B. Access Public Remove constraint Access: Public Subject Impact craters Remove constraint Subject: Impact craters Place Nebraska Remove constraint Place: Nebraska Place Alabama Remove constraint Place: Alabama Year 2005 Remove constraint Year: 2005
2. Outlines of Major Calderas and Impact Structures: Generalized Geologic Map of the Conterminous United States, 2005
2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. A caldera is a large, generally circular depre... Geological Survey (U.S.).