Ages and Geologic Histories of Martian Meteorites

  title={Ages and Geologic Histories of Martian Meteorites},
  author={Laurence E. Nyquist and Donald D. Bogard and C‐Y. Shih and Ansgar Greshake and Dieter St{\"o}ffler and O. J. Eugster},
  journal={Space Science Reviews},
We review the radiometric ages of the 16 currently known Martian meteorites, classified as 11 shergottites (8 basaltic and 3 lherzolitic), 3 nakhlites (clinopyroxenites), Chassigny (a dunite), and the orthopyroxenite ALH84001. The basaltic shergottites represent surface lava flows, the others magmas that solidified at depth. Shock effects correlate with these compositional types, and, in each case, they can be attributed to a single shock event, most likely the meteorite's ejection from Mars… 
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