Crater features diagnostic of oblique impacts: The size and position of the central peak

Persistent Link:
http://hdl.handle.net/10150/292040
Title:
Crater features diagnostic of oblique impacts: The size and position of the central peak
Author:
Ekholm, Andreas Gunnar
Issue Date:
2001
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Using Magellan data, I have investigated two crater characteristics that have been cited as diagnostic of oblique impacts: an uprange offset of the central peak in complex craters, and an increasing central peak diameter relative to crater diameter with decreasing impact angle. I find that the offset distribution is random and very similar to that for high-angle impacts, and that there is no correlation between central peak diameter and impact angle. Accordingly, these two crater characteristics cannot be used to infer the impact angle or direction.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Geophysics.; Physics, Astronomy and Astrophysics.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Plantary Sciences
Degree Grantor:
University of Arizona
Advisor:
Melosh, H. Jay

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleCrater features diagnostic of oblique impacts: The size and position of the central peaken_US
dc.creatorEkholm, Andreas Gunnaren_US
dc.contributor.authorEkholm, Andreas Gunnaren_US
dc.date.issued2001en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractUsing Magellan data, I have investigated two crater characteristics that have been cited as diagnostic of oblique impacts: an uprange offset of the central peak in complex craters, and an increasing central peak diameter relative to crater diameter with decreasing impact angle. I find that the offset distribution is random and very similar to that for high-angle impacts, and that there is no correlation between central peak diameter and impact angle. Accordingly, these two crater characteristics cannot be used to infer the impact angle or direction.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectGeophysics.en_US
dc.subjectPhysics, Astronomy and Astrophysics.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlantary Sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorMelosh, H. Jayen_US
dc.identifier.proquest1407000en_US
dc.identifier.bibrecord.b42286311en_US
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