Reading Annual Bandings from Layerd Terrestial Carbonates

DOI

Bibliographic Information

Other Title
  • 陸域縞状炭酸塩堆積物から年縞をよむ

Abstract

For the extraction of environmental information, absolute dating of sample must be done. As a result of measurements of samples using fluorescence microscopy, it has been clarified that the stalagmite samples obtained from Akiyoshi-dai and Hirao-dai Plateau have fluorescent microbanding with respective average thickness of 26.4 µm and 23.8 µm. The thickness of the layers of a tufa sample from Akiyoshi-dai was 0.5 mm, and that of a tufa sample from Hirao-dai was ranged from 0.1 to 2 mm. The main fluorofore was found to be fulvic acid both for the stalagmite and tufa samples. In case of the Hirao-dai tufa sample, the measurements of the 137Cs g-ray activity were also carried out, and the 137Cs peaks due to the 1945 and the early 60s were detected.

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Details 詳細情報について

  • CRID
    1390001205730575360
  • NII Article ID
    130004592342
  • DOI
    10.14862/geochemproc.51.0.45.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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