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dc.contributor.authorÖhman, T.
dc.contributor.authorAittola, M.
dc.contributor.authorKostama, V.-P.
dc.contributor.authorHyvärinen, M.
dc.contributor.authorRaitala, J.
dc.date.accessioned2021-02-12T21:40:46Z
dc.date.available2021-02-12T21:40:46Z
dc.date.issued2006-01-01
dc.identifier.citationÖhman, T., Aittola, M., Kostama, V.-P., Hyvärinen, M., & Raitala, J. (2006). Polygonal impact craters in the Argyre region, Mars: Evidence for influence of target structure on the final crater morphology. Meteoritics & Planetary Science, 41(8), 1163-1173.
dc.identifier.issn1945-5100
dc.identifier.doi10.1111/j.1945-5100.2006.tb00513.x
dc.identifier.urihttp://hdl.handle.net/10150/656163
dc.description.abstractImpact craters that in plan view are distinctly polygonal rather than circular or elliptical are common on Mars and other planets (hman et al. 2005). Their actual formation mechanism, however, is somewhat debatable. We studied the polygonal craters of different degradational stages in the region of the Argyre impact basin, Mars. The results show that in the same areas, heavily degraded, moderately degraded, and fresh polygonal craters display statistically similar strike distributions of the straight rim segments. The fact that the strike distributions are not dependent on lighting conditions was verified by using two data sets (Viking and MOC-WA) having different illumination geometries but similar resolutions. In addition, there are no significant differences in the amount of polygonality of craters in different degradational stages. These results clearly imply that large-scale polygonality is not caused by degradation, but originates from the cratering process itself, concurring with the findings regarding lunar craters by Eppler et al. (1983). The straight rims of polygonal craters apparently reflect areal fracture patterns that prevail for a geologically long time.
dc.language.isoen
dc.publisherThe Meteoritical Society
dc.relation.urlhttps://meteoritical.org/
dc.rightsCopyright © The Meteoritical Society
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectimpact craters
dc.subjectimpact processes
dc.titlePolygonal impact craters in the Argyre region, Mars: Evidence for influence of target structure on the final crater morphology
dc.typeArticle
dc.typetext
dc.identifier.journalMeteoritics & Planetary Science
dc.description.collectioninformationThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume41
dc.source.issue8
dc.source.beginpage1163
dc.source.endpage1173
refterms.dateFOA2021-02-12T21:40:46Z


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