Scaling of basin-sized impacts and the influence of target temperature
Published:October 01, 2015
Ross W.K. Potter, David A. Kring, Gareth S. Collins, 2015. "Scaling of basin-sized impacts and the influence of target temperature", Large Meteorite Impacts and Planetary Evolution V, Gordon R. Osinski, David A. Kring
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We produce a set of scaling laws for basin-sized impacts using data from a suite of lunar basin numerical models. The results demonstrate the importance of preimpact target temperature and thermal gradient, which are shown to greatly influence the modification phase of the impact cratering process. Impacts into targets with contrasting thermal properties also produce very different crustal and topographic profiles for impacts of the same energy. Thermal conditions do not, however, significantly influence the excavation stage of the cratering process; results demonstrate, as a consequence of gravity-dominated growth, that transient crater radii are generally within 5% of each other...