Petrography and geochemistry of the enriched basaltic shergottite Northwest Africa 2975

  title={Petrography and geochemistry of the enriched basaltic shergottite Northwest Africa 2975},
  author={He Qi and Long Xiao and J. Brian BALTA and Ioannis P Baziotis and Weibiao Hsu and Yunbin Guan},
We present a study of the petrology and geochemistry of basaltic shergottite Northwest Africa 2975 (NWA 2975). NWA 2975 is a medium-grained basalt with subophitic to granular texture. Electron microprobe (EMP) analyses show two distinct pyroxene compositional trends and patchy compositional zoning patterns distinct from those observed in other meteorites such as Shergotty or QUE 94201. As no bulk sample was available to us for whole rock measurements, we characterized the fusion crust and its… CONTINUE READING
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