Morphologic and structural mapping of the central uplift of Betio crater, Thaumasia Planum, Mars
Published:October 01, 2015
A.M. Nuhn, L.L. Tornabene, G.R. Osinski, A.S. McEwen, 2015. "Morphologic and structural mapping of the central uplift of Betio crater, Thaumasia Planum, Mars", Large Meteorite Impacts and Planetary Evolution V, Gordon R. Osinski, David A. Kring
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The ~31.7-km-diameter Betio crater (23.15°S, 281.38°E), located within the Hesperian-aged Ridged Plains material in Thaumasia Planum, Mars, contains a well-preserved asymmetrical central floor pit (~10.8 km NW-SE and ~8.8 km NE-SW in diameter) covering an area of ~67 km2 that exposes discrete megablocks of layered bedrock and preserves a variety of impact-generated deposits. High-resolution images taken by the Mars Reconnaissance Orbiter (MRO) are combined with other data sets to study and map the morphology and structure of the central floor pit. The excellent bedrock exposure of the floor pit enables the comparison of mapped structures with observations from terrestrial...