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| Titel |
Young basaltic deposits in impact craters at the south-eastern extension of Syrtis Major, Mars: preliminary report |
| VerfasserIn |
Marlene Bamberg, Ralf Jaumann  , Hartmut Asche, Andrea Nass, Daniela Tirsch |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250048253
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| Zusammenfassung |
| High Resolution Stereo Camera (HRSC) and Context Camera (CTX) images revealed that the south-eastern region of Syrtis Major displays various fluvial and volcanic surface features. The morphologic evidence includes lava flows, interior channels, erosion deposits, lava flow fronts and diverse types of craters.
Two different crater types can be identified around the south-eastern edge of Syrtis Major: eroded and refilled craters. Erosion processes shaped the crater floors by wind and fluvial activity generating highly weathered craters. By contrast relatively young lava sheets are exposed in the south-eastern region of Syrtis Major. These basaltic deposits predominately cover the floor of larger impact craters. The craters are filled with young basaltic layers of different age. The work presented here shows the distribution and age of young Syrtis Major lava deposits and their correlation to an eroded environment. By using the crater-size frequency distribution (CSFD) the planetary surface can be dated. The source of the relatively young basalt layer is still questionable but seems to indicate late volcanic activities in this region. |
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