Study on Chemical Weathering Index for Rocks

DOI

Bibliographic Information

Other Title
  • 化学的風化指数に関する一考察

Description

The chemical weathering indices, being one of the measures for the degree of weathering, have been proposed by many researchers since WPI (Weathering Potential Index) by Reiche (1943) . In case of using these indices, it is necessary not only to systematically classify and arrange them but also to understand the property of each index.<br>In this paper, the comparison among each index was attempted by applying their indices to the same weathering profile, using the papers which indicate the chemical composition of rocks. The rock type are granitic rock, andesite, shale, and mudstone.<br>And some weathering indices, being both more accurate and easy to use, such as ss2, A. D. F., ba1, ba2, ff etc., were selected.<br>Furthermore, the authors propose a new chemical weathering index: SIW (Simple Index of Weathering) =Na2O/Al2O3+Ig. loss (molecular proportion) and prove its effectiveness.

Journal

  • Sabo Gakkaishi

    Sabo Gakkaishi 42 (4), 3-11, 1989

    Japan Society of Erosion Control Engineering

Details 詳細情報について

  • CRID
    1390282679043946496
  • NII Article ID
    130004295393
  • DOI
    10.11475/sabo1973.42.4_3
  • ISSN
    02868385
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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