生物源炭酸塩の同位体比及び微量元素を用いた熱帯域海洋表層の高解像度古環境解析に関する研究  [in Japanese] High-Resolution Reconstruction of Palaeoclimates in tropical sea surface using Stable Isotopes and Trace Elements in Biogenic Carbonates  [in Japanese]

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Author(s)

    • 渡邊 剛 WATANABE Tsuyoshi
    • 東京大学海洋研究所海洋環境研究センター Center for Environmental Research, Ocean Research Institute, The University of Tokyo|(Present address) Laboratoire de Sciences du Climat et de l'Environment, Laboratoire Mixte CNRS-CEA

Abstract

My recent scientific interests have been to reconstruct palaeoclimates in the tropical and sub tropical areas using chemical tracer of biogenic carbonates including coral skeletons and molluscan shells, which have annual and daily growth bands. Understanding the past climate variability in the tropical ocean is a high priority in climate change research. The tropical climate variability has global consequences such as El Nino-Southern Oscillation (ENSO) and Asian-Australian monsoon but the instrumental records in this area are limited only up to past several decades. Recently coral skeletons have been widely used to understand the past climate variability in the tropical ocean. The oxygen isotopic and trace elemental records of living and fossil coral skeletons have provided the sea surface temperature and precipitation over several hundred years. Despite such a great advance, there still remain problems to use coral skeletons for reconstructing palaeoclimates because of complicated biological and physical processes during their formation. Here I would like to introduce recent my works concerned with these problems and solutions using biogenic carbonates in the skeletons of coral reefs dwellers.

Journal

  • Chikyukagaku

    Chikyukagaku 38(1), 29-43, 2004

    The Geochemical Society of Japan

References:  42

Codes

  • NII Article ID (NAID)
    110008680066
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    0386-4073
  • NDL Article ID
    6909603
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-645
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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