Fluid-rock interactions in seismic faults: Implications from the structures and mineralogical and geochemical compositions of drilling cores from the rupture of the 2008 Wenchuan earthquake, China
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- 作者：Qingbao Duan ; Xiaosong Yang ; xsyang@ies.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Shengli Ma ; Jianye Chen ; Jinyu Chen
- 关键词：Yingxiu&ndash ; Beichuan fault ; Drilling cores ; Clay minerals ; Fluid infiltration ; Fluid&ndash ; rock interaction ; Mass removal
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：666
- 期：Complete
- 页码：260-280
- 全文大小：5718 K
文摘
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More than 2 m-thick fault gouge cores were recovered from the Yingxiu–Beichuan fault.
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Fault rocks display numerous features indicative of fluid infiltration and fluid–rock interaction.
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Mg-rich fluid infiltration leads to chlorite enrichment in the fault zone.
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Fluid infiltration and dissolution–precipitation caused large rock volume loss.