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Isotope geochemistry of mercury and its relation to earthquake in the Wenchuan Earthquake Fault Scientific Drilling Project Hole-1 (WFSD-1)
Lei Zhang;  Yaowei Liu;  Lishuang Guo;  Duoxing Yang;  Zhen Fang;  Tao Chen;  Hongwei Ren;  Ben Yu
2014
发表期刊Tectonophysics
卷号619–620页码:79-85
摘要

Based on the Wenchuan Earthquake Fault Scientific Drilling Project (WFSD), we first investigated the distribution of the total mercury (THg) from 600 m to 1035 m of WFSD Hole-1 core (WFSD-1). The concentrations of THg in the fault gouge are significantly higher than in the sandstone, shale, siltstone, and cataclasite in WFSD-1. The THg concentrations in the main seismic fault zone range from 9.9 to 73.5 ng/g while those under the main fault range from 20.5 to 36 ng/g. To determine the source of Hg, typical rocks from different depths were chosen for Hg isotope analysis. The results show that δ202Hg in the main seismic fault zone range from − 0.11‰ to − 2.68‰, and, below the seismic fault zone, δ202Hg are from − 0.64‰ to − 1.33‰. The seismic fault rocks are more enriched in THg and have a larger variation of δ202Hg compared to the other rocks. Mercury has different isotopic compositions and fractionation mechanisms in the fault zone, which are mainly affected by the earthquake and the fluid. The mercury isotope compositions reflect the fluid activities at the main fault zone. We demonstrate that mercury stable isotope ratios could serve as an effective tool for tracing mercury sources and monitoring and predicting earthquakes.

关键词Mercury mercury Isotope Ratios wenchuan Earthquake rock Cores wenchuan Earthquake Fault Scientific Drilling Project (Wfsd)
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9366
专题环境地球化学国家重点实验室
作者单位1.Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration, No.1, Anningzhuang Road, Beijing 100085, China
2.nstitute of Geophysics, China Earthquake Administration, Beijing 100081, China
3.Anhui Earthquake Administration, Hefei 230031, China
4.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
推荐引用方式
GB/T 7714
Lei Zhang;Yaowei Liu;Lishuang Guo;Duoxing Yang;Zhen Fang;Tao Chen;Hongwei Ren;Ben Yu. Isotope geochemistry of mercury and its relation to earthquake in the Wenchuan Earthquake Fault Scientific Drilling Project Hole-1 (WFSD-1)[J]. Tectonophysics,2014,619–620:79-85.
APA Lei Zhang;Yaowei Liu;Lishuang Guo;Duoxing Yang;Zhen Fang;Tao Chen;Hongwei Ren;Ben Yu.(2014).Isotope geochemistry of mercury and its relation to earthquake in the Wenchuan Earthquake Fault Scientific Drilling Project Hole-1 (WFSD-1).Tectonophysics,619–620,79-85.
MLA Lei Zhang;Yaowei Liu;Lishuang Guo;Duoxing Yang;Zhen Fang;Tao Chen;Hongwei Ren;Ben Yu."Isotope geochemistry of mercury and its relation to earthquake in the Wenchuan Earthquake Fault Scientific Drilling Project Hole-1 (WFSD-1)".Tectonophysics 619–620(2014):79-85.
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