The Degradation History of the Roter Kamm Impact Crater, Namibia

Mathematics – Logic

Scientific paper

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Craters: Impact, Degradation, Mars: Analogs, Radar: Ground Penetrating, Roter Kamm

Scientific paper

The Roter Kamm impact crater formed 3.7 Ma in the southern Namib desert of Namibia (27 degrees 46'S; 16 degrees 18'E). The crater is surrounded and partially buried by an active eolian sand sheet and dune field, thereby hampering access and assessment of preservation state. As a result, the preservation and extent of any pristine ejecta deposits were poorly known. In an attempt to constrain the degradation state of the crater, a ground penetrating radar (GPR) was used in tandem with other geological investigations to define the surface character and shallow stratigraphy in and around the crater. Results indicate that much of the continuous ejecta deposits north, east, and south of the rim are completely eroded: the western exterior of the crater was not investigated. At least one local occurrence of only slightly modified ejecta does persist north of the rim, however, and additional ejecta may remain beneath alluvium flanking the outer rim.

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