CO diffusive emission in the co-seismic rupture zone of the Wenchuan M[s] 8.0 earthquake
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- Sun Yutao
- School of Nature Resources, Heibei GEO University
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- Zhou Xiaocheng
- CEA Key Laboratory of Earthquake Prediction (Institute of Earthquake Forecasting), China Earthquake Administration
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- Du Jianguo
- CEA Key Laboratory of Earthquake Prediction (Institute of Earthquake Forecasting), China Earthquake Administration The United Laboratory of High-Pressure Physics and Earthquake Science
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- Guo Zhengfu
- Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences CAS Center for Excellence in Life and Paleoenvironment University of Chinese Academy of Sciences
書誌事項
- タイトル別名
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- CO diffusive emission in the co-seismic rupture zone of the Wenchuan <i>M<sub>S</sub></i> 8.0 earthquake
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<p>Carbon monoxide (CO) is one of the most important components in the troposphere, which plays a significant role in the oxidation and reduction chemistry of the atmosphere. Surface rupture zones are one of the main regions of gas degassing. The Wenchuan MS 8.0 earthquake produced the ~240-km-long Yingxiu-Shuiguan rupture zone and the ~72-km-long Tongji-Hanwang rupture zone. In this study, soil CO flux in the surface rupture zones produced by the Wenchuan MS 8.0 earthquake (WSRZ) was measured using the closed-chamber method. The results showed that soil CO flux in the WSRZ ranged from 0.2 to 25.4 mg m−2 d−1 with background value of 5.2 mg m−2 d−1, which indicated gas was still degassing after the Wenchuan MS 8.0 earthquake. Abiogenic CO in the WSRZ might origin from the low crust flow and chemical reactions of the C-H-O fluids in the active fault zone. The spatial variations of CO fluxes along the WSRZ show significant segmentation characteristics. This research implicates the geochemical characteristics and origin of CO from natural fault zones as well as provides basic data for geochemical characteristics of soil CO degassing in co-seismic surface rupture zones.</p>
収録刊行物
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 54 (3), 91-104, 2020
一般社団法人日本地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390566775144036608
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- NII論文ID
- 130007858923
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- NII書誌ID
- AA00654975
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- ISSN
- 18805973
- 00167002
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- NDL書誌ID
- 030610590
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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