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Probing Structural Elements of Small Buried Craters Using Ground-Penetrating Radar in the Southwestern Egyptian Desert: Implications for Mars Shallow Sounding

hal.structure.identifierLunar and Planetary Institute [Houston] [LPI]
dc.contributor.authorHEGGY, Essam
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorPAILLOU, Philippe
dc.date.issued2006
dc.identifier.issn0094-8276
dc.description.abstractEnWe report results from a field survey performed on a recently discovered impact field in the southwestern Egyptian desert, using a 270 MHz Ground-Penetrating Radar (GPR). This hyperarid region has significant similarities to the Martian heavily eroded mid-latitude cratered terrains in terms of crater density, size, and geomorphology. Profiles across small-buried craters revealed a coherent sequence of tilted layers constituting the cratonic infill resulting from aeolian deposits. In the intercrater areas the radargram revealed a poorly-defined subsurface stratigraphy and the presence of shallow structural elements associated with potential evidences of the consequences of the shock effects, i.e., faulting, fractures, and chaotic bedrock. The radar-penetration depth varied from 2 to 15 m, depending mainly on the amplitude of the volume and multiple scattering in the subsurface, caused by fractures and debris created by the impacts. We conclude that mid-frequency GPR onboard future Martian rovers can successfully perform similar structural mapping.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.subject.enRemote sensing
dc.subject.enImpact phenomena
dc.subject.enCratering
dc.subject.enInstruments and techniques
dc.title.enProbing Structural Elements of Small Buried Craters Using Ground-Penetrating Radar in the Southwestern Egyptian Desert: Implications for Mars Shallow Sounding
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
bordeaux.journalGeophysical Research Letters
bordeaux.pageL05202
bordeaux.volume33
bordeaux.peerReviewedoui
hal.identifierhal-00081251
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00081251v1
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