Martian Meteorite Launch: High-Speed Ejecta from Small Craters

  title={Martian Meteorite Launch: High-Speed Ejecta from Small Craters},
  author={J. Head and H. Melosh and B. Ivanov},
  pages={1752 - 1756}
We performed high-resolution computer simulations of impacts into homogeneous and layered martian terrain analogs to try to account for the ages and characteristics of the martian meteorite collection found on Earth. We found that craters as small as ∼3 kilometers can eject ∼107 decimeter-sized fragments from Mars, which is enough to expect those fragments to appear in the terrestrial collection. This minimum crater diameter is at least four times smaller than previous estimates and depends on… Expand