造礁サンゴ骨格の窒素同位体比指標  [in Japanese] Nitrogen isotope proxy in reef coral skeletons  [in Japanese]

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Author(s)

    • 山崎 敦子 Yamazaki Atsuko
    • 北海道大学大学院理学研究院地球惑星科学部門|喜界島サンゴ礁科学研究所 Earth and Planetary Sciences, Faculty of Science, Hokkaido University|KIKAI institute for Coral Reef Sciences

Abstract

<p>Marine nitrogen cycle and its transition control primary production, and therefore contribute to the concentration of atmospheric carbon dioxide, which is the essential information to understand the biogeochemical cycle and the global climate system. However, the spatial and continuous observation of nitrogen dynamics at surface ocean has been scarce. Reef coral skeleton could be used to reconstruct past nutrient dynamics in tropical and subtropical ocean with decades to millennia. Nitrogen isotope of organic matter in the coral skeleton could vary with change in nitrogenous sources and mainly capture nitrogen isotopes of marine nitrate. In this paper, I reviewed the progress of nitrogen isotope proxy in reef coral skeletons together with the introduction of our studies. Nitrogen isotopes in reef coral skeletons can be a high-resolution recorder of nitrate dynamics in oligotrophic ocean.</p>

Journal

  • Chikyukagaku

    Chikyukagaku 53(1), 1-12, 2019

    The Geochemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007619006
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • ISSN
    0386-4073
  • NDL Article ID
    029610551
  • NDL Call No.
    Z15-645
  • Data Source
    NDL  J-STAGE 
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