2010年4月
Experimental evidence on formation of imminent and short-term hydrochemical precursors for earthquakes
APPLIED GEOCHEMISTRY
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- 巻
- 25
- 号
- 4
- 開始ページ
- 586
- 終了ページ
- 592
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.apgeochem.2010.01.015
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
The formation of imminent hydrochemical precursors of earthquakes is investigated by the simulation for water-rock reaction in a brittle aquifer. Sixty-one soaking experiments were carried out with granodiorite and trachyandesite grains of different sizes and three chemically-distinct waters for 6 to 168 h. The experimental data demonstrate that water-rock reaction can result in both measurable increases and decreases of ion concentrations in short times and that the extents of hydrochemical variations are controlled by the grain size, dissolution and secondary mineral precipitation, as well as the chemistry of the rock and groundwater. The results indicate that water-rock reactions in brittle aquifers and aquitards may be an important genetic mechanism of hydrochemical seismic precursors when the aquifers and aquitards are fractured in response to tectonic stress. (C) 2010 Elsevier Ltd. All rights reserved.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.apgeochem.2010.01.015
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000276823900009&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77949486825&origin=inward
- ID情報
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- DOI : 10.1016/j.apgeochem.2010.01.015
- ISSN : 0883-2927
- SCOPUS ID : 77949486825
- Web of Science ID : WOS:000276823900009