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Author
King, Philip B.
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Author
Schruben, Paul G.
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Access
Public
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Subject
Impact craters
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Place
Massachusetts
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United States
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Connecticut
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Data type
Line
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Shapefile
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Year
2005
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1. 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.).