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地球科学进展  2017, Vol. 32 Issue (8): 818-827    DOI: 10.11867/j.issn.1001-8166.2017.08.0818
应用地球化学专辑     
汶川MS8.0地震破裂带土壤气中H2浓度时空变化
周晓成1, 石宏宇1, 陈超2, 曾令华2, 孙凤霞1, 李静3, 陈志1, 吕超甲1, 黄丹1, 杜建国1
1.中国地震局地震预测重点实验室,中国地震局地震预测研究所,北京 100036;
2.四川省地震局康定地震台,四川 康定 626000;
3.防灾科技学院,河北 廊坊 065201
Spatial-temporal Variations of H2 Concentration in Soil Gas in the Seismic Fault Zone Produced by the Wenchuan MS 8.0 Earthquake
Zhou Xiaocheng1, Shi Hongyu1, Chen Chao2, Zeng Linghua2, Sun Fengxia1, Li Jing3, Chen Zhi1, Lü Chaojia1, Huang Dan1, Du Jianguo1
1.Key Laboratory of Earthquake Prediction, Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China;
2.Kangding Seismic Station, Sichuan Earthquake Administration,Sichuan Kangding 626000, China;
3.Institute of Disaster Prevention, Hebei Langfang 065201, China
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摘要:

断裂带H2浓度变化能很好地反映断裂的活动性。通过对汶川MS 8.0地震破裂带23个测区的土壤气H2浓度测量,探讨破裂带土壤气H2浓度时空变化与破裂带垂直位移与余震的关系。测量结果表明:①破裂带土壤气H2主要来源与浅部气藏泄露直接相关;②破裂带土壤气H2浓度平均值从映秀到南坝逐渐降低;③破裂带土壤气H2浓度随着时间推移逐渐衰减。地震断裂带内H2脱气进一步研究对大气环境研究具有重要意义。

关键词: 氢气土壤气汶川地震破裂带    
Abstract:

Degassing of Hydrogen (H2) from fault may be a good indicator of fault activity. The concentration of H2 in soil gas in the seismic surface rupture zone produced by the Wenchuan MS 8.0 earthquake was investigated in twenty three measuring regions in order to explore the relationship between the spatio-temporal variations of H2 concentration in soil gas along the seismic rupture zone and the vertical displacements and aftershocks activities. The results indicated: ① the sources of H2 were directly related to from the release of natural gas reservoirs; ②the average concentration of H2 in soil gas spatially decreased from Yingxiu to Nanba; ③the magnitudes of the H2 concentration anomalies declined significantly with time. It is very significant to study the variation tendency of atmospheric environment with further research of degassing of H2 from faults.

Key words: Hydrogen    Soil gas    Wenchuan MS 8.0 earthquake.    Rupture zone
收稿日期: 2017-03-23 出版日期: 2017-08-20
ZTFLH:  P315.72+8  
基金资助:

中国地震局地震预测研究所基本科研业务费“红河断裂带与小江断裂带交汇区温泉流体地球化学特征研究”(编号:2017IES010205); 国家自然科学基金项目“鲜水河—小江活动断裂带CO2脱气研究”(编号:41673106)资助

作者简介: 周晓成(1978-),男,新疆玛纳斯人,副研究员,主要从事构造地球化学,流体地球化学研究.E-mail:zhouxiaocheng188@163.com
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引用本文:

周晓成, 石宏宇, 陈超, 曾令华, 孙凤霞, 李静, 陈志, 吕超甲, 黄丹, 杜建国. 汶川MS8.0地震破裂带土壤气中H2浓度时空变化[J]. 地球科学进展, 2017, 32(8): 818-827.

Zhou Xiaocheng, Shi Hongyu, Chen Chao, Zeng Linghua, Sun Fengxia, Li Jing, Chen Zhi, Lü, Chaojia, Huang Dan, Du Jianguo. Spatial-temporal Variations of H2 Concentration in Soil Gas in the Seismic Fault Zone Produced by the Wenchuan MS 8.0 Earthquake. Advances in Earth Science, 2017, 32(8): 818-827.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2017.08.0818        http://www.adearth.ac.cn/CN/Y2017/V32/I8/818

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