Communication Dans Un Congrès Année : 2006

Multi-frequency GPR and others electromagnetic investigation of two Mars analog environments in the West Egyptian Desert.

Résumé

During November 2005, research teams from the Lunar and Planetary Institute (LPI), Southwest Research Institute (SwRI), and Centre d’étude des Environnements Ter- restre et Planétaires (CETP), in cooperation with Cairo University and the Egyptian Geological Survey and Mining Authority (EGSMA), conducted geophysical sound- ing investigations at two locations in the West Egyptian Desert as potential geologic and hydrologic analogs of Mars. These investigations included ground-penetrating radar (GPR) studies, using multiple instruments and techniques, at central frequencies ranging from 2 – 500 MHz. Schlumberger DC resistivity vertical electrical sounding (VES) and transient electromagnetic (TEM) sounding data, as well as field samples from cliff exposures (for later laboratory characterization of the principal stratigraphic units), were also acquired at these locations. Although our analysis is still ongoing, initial findings indicate that considerable am- biguity exists in the geologic and hydrologic interpretation of data acquired from any single electromagnetic investigation—ambiguity that is substantially reduced by the application of multiple techniques and frequencies. These results suggest that obtain- ing an accurate understanding of the geology and distribution of water in the Martian subsurface will likely require a comprehensive program of geophysical investigations, employing multiple instruments, techniques and platforms.

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Dates et versions

hal-00159434 , version 1 (03-07-2007)

Identifiants

  • HAL Id : hal-00159434 , version 1

Citer

S.M. Clifford, Essam Heggy, M. Ali, Valérie Ciarletti, Charlotte Corbel, et al.. Multi-frequency GPR and others electromagnetic investigation of two Mars analog environments in the West Egyptian Desert.. EGU, 2006, Vienna, Austria. ⟨hal-00159434⟩
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