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GSA Special Papers
Large Meteorite Impacts III
Author(s)
Geological Society of America
Volume
384
Copyright:
Geological Society of America
Geological Society of America
ISBN print:
9780813723846
Publication date:
January 01, 2005
Book Chapter
Impact structures: What does crater diameter mean?
Author(s)
E.P. Turtle
Lunar and Planetary Laboratory, Department of Planetary Sciences, University of Arizona, Tucson, Arizona 85721-0092, and Planetary Science Institute, 1700 E. Fort Lowell, Suite 106, Tucson, Arizona 85719-2395, USA
;
E.P. Turtle
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E. Pierazzo
Planetary Science Institute, 1700 E. Fort Lowell, Suite 106, Tucson, Arizona 85719-2395, USA
;
E. Pierazzo
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G.S. Collins
Lunar and Planetary Laboratory, Department of Planetary Sciences, University of Arizona, Tucson, Arizona 85721-0092, USA Present addresses: Collins—Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK; Osinski—Canadian Space Agency, 6767 Route de l'Aeroport, Saint-Hubert, Quebec, J3Y 8Y9, Canada.
;
G.S. Collins
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G.R. Osinski
Lunar and Planetary Laboratory, Department of Planetary Sciences, University of Arizona, Tucson, Arizona 85721-0092, and Planetary Science Institute, 1700 E. Fort Lowell, Suite 106, Tucson, Arizona 85719-2395, USA Present addresses: Collins—Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK; Osinski—Canadian Space Agency, 6767 Route de l'Aeroport, Saint-Hubert, Quebec, J3Y 8Y9, Canada.
;
G.R. Osinski
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H.J. Melosh
Lunar and Planetary Laboratory, Department of Planetary Sciences, University of Arizona, Tucson, Arizona 85721-0092, USA
;
H.J. Melosh
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J.V. Morgan
Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK
;
J.V. Morgan
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W.U. Reimold
Impact Cratering Research Group, School of Geosciences, University of the Witwatersrand, Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa
W.U. Reimold
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Published:January 01, 2005
The diameter of an impact crater is one of the most basic and important parameters used in energy scaling and numerical modeling of the cratering process. However, within the impact and geological communities and literature, there is considerable confusion about crater sizes due to the occurrence of a variety of concentric features, any of which might be interpreted as defining a crater's diameter. The disparate types of data available for different craters make the use of consistent metrics difficult, especially when comparing terrestrial to extraterrestrial craters. Furthermore, assessment of the diameters of terrestrial craters can be greatly complicated due to...
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