Morphology of Lonar crater, India - Comparisons and implications

Details Morphology of Lonar crater, India - Comparisons and implications Morphology of Lonar crater, India - Comparisons and implications

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980m%26p....23..493f&link_type=abstract

Moon and the Planets, vol. 23, Dec. 1980, p. 493-515. Research supported by the Smithsonian Institution.

Physics

25

Earth Surface, Impact Damage, Meteorite Craters, Morphology, Planetary Craters, Basalt, Ejecta, Gravity Anomalies, India

Scientific paper

Data from five drillholes, a gravity network, and field mapping indicated that the pre-erosion diameter of the Lonar crater was 1710 m, the average rim height was 40 m, and its depth was 230-245 m from the rim crest to the crater floor. The Lonar crater demonstrates that its depth/diameter ratio is smaller than that of its lunar counterparts, but the rim/height diameter ratio is much smaller than in the terrestrial and lunar impact craters. The ejecta blanket and the underlying substrate suggest that a fluidized debris surge was dominant in ejecta transport and deposition at the Lonar crater, showing an analogy to the fluidized craters of Mars.

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