Layered Deposits in Terby Crater (hellas Region, Mars) from Multi-datasets (mola, Themis and Moc) : Geologic Implications
نویسندگان
چکیده
Introduction: Terby impact crater is located at the northeastern part of Hellas region (75°E – 30°S) on the cratered highlands. Using multi-dataset available on this area, we investigated the geological story of Terby crater. MOLA altimetry [1] shows that Terby impact crater displays an anomalous morphology compared to other impact crater of ~200 km in diameter. Instead of a circular depression with a central peak, it displays an inner flat topography locally eroded. This kind of impact crater with an atypical morphology often showing an inner floor and sedimentary features such as alluvial fans, deltas, sedimentary terraces and shores have been interpreted as impact crater paleoloakes by mo rphological analysis on Viking images [2, 3, 4, 5]. The good spatial resolution (few m to 100m/pixel) of MOC [6] and THEMIS [7] images improves the geomorphic analysis of geological features.
منابع مشابه
Geomorphic and Stratigraphic Analysis of Layered Deposits in Terby
Introduction: Recently released, high-resolution images from the Mars Orbiter Camera (MOC) and the Thermal Emission Imaging System (THEMIS) reveal a myriad of intriguing landforms banked along the northern edge of Terby Crater located on the northern rim of Hellas (~28°S, 287°W). Landforms within this crater include north-trending troughs and ridges, a remarkable 2.5 km–thick sequence of expose...
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