CO2 diffuse emission from maar lake: An example in Changbai volcanic field, NE China

doi:10.1016/j.jvolgeores.2017.10.012

	CO2 diffuse emission from maar lake: An example in Changbai volcanic field, NE China
	Sun, Yutao 1,2,3; Guo, Zhengfu 1,2; Liu, Jiaqi 1,2; Du, Jianguo 4
刊名	JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
	2018
卷号	349 页码:146-162
关键词	Flux Monogenetic volcano CO2 Yuanchi maar Changbai volcanic field
ISSN号	0377-0273
DOI	10.1016/j.jvolgeores.2017.10.012
文献子类	Article
英文摘要	Numerous maars and monogenetic volcanic cones are distributed in northeast China, which are related to westward deep subduction of the Pacific Ocean lithosphere, comprising a significant part of the "Pacific Ring of Fire". It is well known that diffuse CO2 emissions from monogenetic volcanoes, including wet (e.g., maar lake) and dry degassing systems (e.g., soil diffuse emission, fault degassing, etc.), may contribute to budget of globally nature-derived greenhouse gases. However, their relationship between wet (e.g., maar lake) and concomitant dry degassing systems (e.g., soil diffuse emission, fault degassing, etc.) related to monogenetic volcanic field is poorly understood. Yuanchi maar, one of the typical monogenetic volcanic systems, is located on the eastern flank of Tianchi caldera in Changbai volcanic field of northeast China, which displays all of three forms of CO2 degassing including the maar lake, soil micro-seepage and fault degassing. Measurements of efflux of CO2 diffusion from the Yuanchi maar system (YMS) indicate that the average values of CO2 emissions from soil micro seepage, fault degassing and water-air interface diffusion are 24.3 +/- 23.3 g m(-2) d(-1), 39.2 +/- 22.4 g m(-2) d(-1) and 2.4 +/- 1.1 g m(-2) d(-1), respectively. The minimum output of CO2 diffuse emission from the YMS to the atmosphere is about 176.1 +/- 88.3 ton/yr, of which 80.4% results from the dry degassing system. Degassing from the fault contributes to the most of CO2 emissions in all of the three forms of degassing in the YMS. Contributions of mantle, crust, air and organic CO2 to the soil gas are 0.01-0.10%,10-20%, 32-36% and 48-54%, respectively, which are quantitatively constrained by a He-C isotope coupling calculation model. We propose that CO2 exsolves from the upper mantle melting beneath the Tianchi caldera, which migrates to the crustal magma chamber and further transports to the surface of YMS along the deep fault system. During the transportation processes, the emission of gas experiences crustal contamination, influence of magma chamber beneath the YMS, sub-surface processes and air dilution. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	CARBON-DIOXIDE EMISSIONS ; RATIO MASS-SPECTROMETRY ; NORTHEAST CHINA ; SOIL-GAS ; NEW-ZEALAND ; ISOTOPIC COMPOSITION ; MILLENNIUM ERUPTION ; TIANCHI VOLCANO ; LESSER ANTILLES ; GEOTHERMAL AREA
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000424067500009
资助机构	Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; 41772355 ; 41772355 ; 41772355 ; 41772355 ; 41373059) ; 41373059) ; 41373059) ; 41373059) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; 41772355 ; 41772355 ; 41772355 ; 41772355 ; 41373059) ; 41373059) ; 41373059) ; 41373059) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; 41772355 ; 41772355 ; 41772355 ; 41772355 ; 41373059) ; 41373059) ; 41373059) ; 41373059) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-DQC030) ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; National Science Foundation of China(41572321 ; 41772355 ; 41772355 ; 41772355 ; 41772355 ; 41373059) ; 41373059) ; 41373059) ; 41373059)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82674]
专题	中国科学院地质与地球物理研究所
通讯作者	Guo, Zhengfu
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, POB 9825, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Earthquake Adm, Inst Earthquake Sci, CEA Key Lab Earthquake Predict, Beijing 100036, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yutao,Guo, Zhengfu,Liu, Jiaqi,et al. CO2 diffuse emission from maar lake: An example in Changbai volcanic field, NE China[J]. JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,2018,349:146-162.
APA	Sun, Yutao,Guo, Zhengfu,Liu, Jiaqi,&Du, Jianguo.(2018).CO2 diffuse emission from maar lake: An example in Changbai volcanic field, NE China.JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,349,146-162.
MLA	Sun, Yutao,et al."CO2 diffuse emission from maar lake: An example in Changbai volcanic field, NE China".JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 349(2018):146-162.