化学的風化指数に関する一考察

天田 高白, 岡谷 直

doi:10.11475/sabo1973.42.4_3

書誌事項

タイトル別名

Study on Chemical Weathering Index for Rocks

説明

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.

収録刊行物

砂防学会誌

砂防学会誌 42 (4), 3-11, 1989

Japan Society of Erosion Control Engineering

詳細情報詳細情報について

CRID: 1390282679043946496

NII論文ID: 130004295393

DOI: 10.11475/sabo1973.42.4_3

ISSN: 02868385

データソース種別

JaLC
CiNii Articles

抄録ライセンスフラグ: 使用不可

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