海洋底かんらん岩のオスミウム同位体組成  [in Japanese] A review of Os isotope ratios in abyssal peridotites  [in Japanese]

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Author(s)

    • 石川 晃 ISHIKAWA Akira
    • 東京大学大学院総合文化研究科宇宙地球科学教室 Department of Earth Science and Astronomy, Graduate School of Arts and Sciences, The University of Tokyo

Abstract

  Osmium isotope ratios of abyssal peridotites are of great interest to geoscientists because they provide direct information about the present-day Earth's mantle. This is based on the fact that Os is a highly siderophile and compatible element and so concentrates in the core in preference to the mantle, and in the mantle in preference to the crustal materials. In addition, Os is not susceptible to metasomatism and alteration by sea water. In this review, we explain the advantages and details of using the model age of Re-Os system as a timing of Re depletion. We also present Os isotope ratios in abyssal peridotite whole rocks, and chromites and sulphides within abyssal peridotites from the Atlantic, Indian and Pacific Oceans, and young ophiolites.<br>

Journal

  • Japanese Magazine of Mineralogical and Petrological Sciences

    Japanese Magazine of Mineralogical and Petrological Sciences 41(5), 211-221, 2012-09-30

    Japan Association of Mineralogical Sciences

References:  63

Cited by:  1

Codes

  • NII Article ID (NAID)
    10031131482
  • NII NACSIS-CAT ID (NCID)
    AA1146088X
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1345630X
  • NDL Article ID
    024162006
  • NDL Call No.
    Z15-117
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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