Chemical characteristics of a Martian meteorite, Yamato 980459

被引用文献3件
  • SHIRAI N.
    Department of Chemistry, Graduate School of Sciences,Tokyo Metropolitan University
  • Ebihara Mitsuru
    Department of Chemistry, Graduate School of Sciences,Tokyo Metropolitan University

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As a part of consortium study, we analyzed a Martian meteorite, Yamato (Y) 980459 by prompt gamma-ray analysis (PGA), instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS). Our data confirmed that Y980459 belongs to olivine-phyric shergottites in chemical composition. Based on mg numbers (molar Mg(Mg+Fe) ratio), olivine-phyric shergottites are divided into two subgroups with high mg number and low mg number. Y980459 is grouped into members with high mg number along with DaG 476 and SaU 005. Abundances of rare earth elements (REEs) in Y980459 are depleted in light REEs (LREEs) and are similar to those of DaG 476 and SaU 005, being different from those for EETA 79001A, Dho 019 and NWA 1068, which are less depleted in LREEs. Based on the REE abundance in Y980459, a value of 0.19-0.25 was derived for the fraction of Martian crust in the Shergotty meteorite.

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詳細情報 詳細情報について

  • CRID
    1573950401613574400
  • NII論文ID
    110001051448
  • NII書誌ID
    AA11182426
  • ISSN
    13434284
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles
    • Crossref

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