分子レベル安定炭素・水素同位体比の古気候研究への適用(<特集>有機化合物の安定同位体比を用いた有機地球化学的研究の発展とその応用(Part II))

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概要

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• Biomarkers have increasingly become common tools in the reconstruction of past environmental conditions. Molecular analyses of terrestrial biomarker lipids extracted from ocean, lake and bog sediments have been used for reconstructions of paleovegetation and associated paleoclimate histories. Stable carbon and hydrogen isotopic compositions of certain biomarkers provide powerful paleoclimate information. Stable carbon isotopic composition of C_<37> alkenone, which is specific biomarker of certain haptophyte algae, have been used to reconstruct concentration of atmospheric carbon dioxide in a past. Recently developed techniques for measuring compound-specific hydrogen isotope compositions of alkyl lipids has potential as a proxy of temperature, precipitation, relative humidity and hydrological cycles of the past.

• 2011-09-30

著者

• 関 宰

  北海道大学低温科学研究所

関連論文

• 分子レベル安定炭素・水素同位体比の古気候研究への適用(有機化合物の安定同位体比を用いた有機地球化学的研究の発展とその応用(Part II))
• 分子レベル安定同位体分析の古環境復元への応用

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