Discrimination Between Active and Non-Active Faults Based on the Chemical Composition of Fault Gouge
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- TATEISHI Ryo
- University of Toyama
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- SHIMADA Koji
- Japan Atomic Energy Agency
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- SHIMIZU Mayuko
- Japan Atomic Energy Agency
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- UEKI Tadamasa
- Japan Atomic Energy Agency present affiliation : Chuo Kaihatsu Corporation
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- NIWA Masakazu
- Japan Atomic Energy Agency
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- SUEOKA Shigeru
- Japan Atomic Energy Agency
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- ISHIMARU Tsuneari
- Japan Atomic Energy Agency
Bibliographic Information
- Other Title
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- 断層ガウジの化学組成に基づく活断層と非活断層の判別
- 断層ガウジの化学組成に基づく活断層と非活断層の判別 : 線形判別分析による試み
- ダンソウ ガウジ ノ カガク ソセイ ニ モトズク カツダンソウ ト ヒカツダンソウ ノ ハンベツ : センケイ ハンベツ ブンセキ ニ ヨル ココロミ
- ― An Attempt Using Linear Discriminant Analysis
- ―線形判別分析による試み
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Description
We attempted to discriminate between active and non-active faults by linear discriminant analysis using the chemical composition data of fault gouges in Japan, and then examined the elements that represent the difference between them and better discriminants. As a result, the multiple discriminants obtained could discriminate between them with high probability. In addition, the generalization performance of these discriminants is discussed, and the discriminants that can be expected to have high discriminant performance for unknown samples are presented. Also, from the combination of elements common to these discriminants, we narrowed down the number of elements that represent the difference between active and non-active faults to 6, and showed that the combination of TiO$_{2}$ and Sr contributing the most to the discrimination. The method applied in this study is an innovative one that can discriminate the activity by chemical analysis of fault rocks that are universally present in the bedrock.
Journal
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- Journal of the Japan Society of Engineering Geology
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Journal of the Japan Society of Engineering Geology 62 (2), 104-112, 2021-06-10
Japan Society of Engineering Geology
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Details 詳細情報について
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- CRID
- 1390009062454807936
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- NII Article ID
- 130008134351
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- NII Book ID
- AN00026635
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- ISSN
- 18840973
- 02867737
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- NDL BIB ID
- 031567945
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles