Volcanogenic CO2 Degassing in the Songliao Continental Rift System, NE China
Volcanogenic CO2 Degassing in the Songliao Continental Rift System, NE China
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中国东北部松辽大陆裂谷系火山产生的二氧化碳脱气
DOI:
10.1155/2019/8053579
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发表时间:
2019-08
期刊:
影响因子:
1.7
通讯作者:
Zheng Guodong
中科院分区:
文献类型:
--
作者:
Zhao Wenbin;Guo Zhengfu;Lei Ming;Zhang Maoliang;Ma Lin;Fortin Danielle;Zheng Guodong
The Wudalianchi monogenetic volcanic field (WMVF) is located in the Songliao basin within a major continental rift system in NE China. Bubbling springs and diffuse degassing from soils are typical features of the WMVF. Chemical compositions and C-He isotope analyses revealed that the cold spring gases might originate from the enriched upper mantle (EM), which resulted from the mixing between slab materials (subducted organic sediments and carbonates) in the mantle transition zone (MTZ) and the ambient depleted mantle. These EM-derived volatiles experienced variable degrees of crustal input, including both continental organic metasediments and crustal carbonates during their ascending path to the surface. The estimated results of the degassing CO2 fluxes, combined with previous geophysical evidence, suggest that the CO2 degassing activities become weaker from early to late in Quaternary.
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DOI:
10.1007/978-3-319-78527-1
发表时间:
1973
期刊:
Stable Isotope Geochemistry
影响因子:
--
作者:
J. Hoefs
通讯作者:
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影响因子:
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发表时间:
2008
期刊:
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影响因子:
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作者:
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影响因子:
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