Hydrodynamic modeling of impact craters in ice

Excavation of Subsurface Ice on Mars by New Impact Craters

das, M.R. Kennedy, M. Mellon, D. Shean, I. Daubar, S. Cull, K.D. Seelos, S. Murchie, B. Cantor, R.E. Arvidson, K. Edgett, A. McEwen, T. Harrison, L. Posiolova, F.P. Seelos and the HiRISE, CTX and CRISM teams. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ; Malin Space Science Systems, San Diego, CA; Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder...

Ice-associated Impact Craters on Mars: Implications from Mola Observations

Numerical Modeling of Shatter Cones Development in Impact Craters

Introduction: Shatter cones are the characteristic forms of rock fractures in impact structures. They have been used for decades as unequivocal fingerprints of meteoritic impacts on Earth [1,2]. The abundant data about shapes, apical angles, sizes and distributions of shatter cones for many terrestrial impact structures should provide insights for the determination of impact conditions and char...

Impact Melt Volumes in Simple Lunar Craters: Constraints on Modeling

Introduction: Impact melt is a typical product produced during the cratering process as a result of the intense heating of the target usually because of pressure decompression, but also possible because of shear heating (Figure 1). Melt is observed on all of the terrestrial planets in both simple and complex craters [16]. High-resolution data for the Moon now allows impact melt deposits to be c...

Laboratory Modeling of Meteorite Impact Craters by Z-pinch Plasma

Desai, et al. [1] simulated microparticle lunar impact craters using laser impacts. They produced crater diameters of several hundred μm in Al. Ford [2] made observations about lunar craters simulated by spark-machining on metal. These were also very small scale craters. This work expands the size of simulated impact craters from their sub-millimeter craters to craters over a centimeter and exp...