干旱区生态环境知识资源中心(Arid): Genetic origin of gas and fluid from the mud volcanoes in the North Tianshan area in Xinjiang Province, NW China

Arid

DOI	10.1007/s13146-021-00718-5
	Genetic origin of gas and fluid from the mud volcanoes in the North Tianshan area in Xinjiang Province, NW China
	Gao, Xiaoqi; Wang, Yangyang; Li, Yujiang; Guo, Lishuang; Xiang, Yang; Jiang, Yuhan
通讯作者	Gao, XQ (corresponding author), MEMC, Natl Inst Nat Hazards, 1 Anningzhuang Rd, Beijing 100085, Peoples R China.
来源期刊	CARBONATES AND EVAPORITES
ISSN	0891-2556
EISSN	1878-5212
出版年	2021
卷号	36 期号:3
英文摘要	Mud volcanoes are geological phenomena characterized by a fluid structure occurring within specific geologic structures and hydrogeological environments and provide valuable information on the ground surface during eruptions. There are numerous mud volcanoes in the North Tianshan area in Xinjiang Province, NW China. The origins of water and gas from mud volcanoes in the Tianquan Area, Baiyanggou in Usu, Aiqigou in Usu, Dushanzi District in Karamay, and Khorgas in Shawan County of the North Tianshan area have been analyzed by investigating isotopic and compositional signatures of them. The water from mud volcanoes in the North Tianshan area may primarily originate from atmospheric precipitation stored in the anticline structure. The stored precipitation, coupled with the arid marine phase and river/lake phase sedimentary sandstones and mudstones (including evaporite rocks, such as rock salt, gypsum and carbonate) experienced a series of complex water-rock interactions and formed the hydrochemical characteristics of the mud volcano water. Through the analysis of the main gas compounds carried out using a gas chromatograph equipped with a thermal conductivity detector, the major component of the gases from the mud volcanoes in the North Tianshan area was determined to be methane, with a range of 85.6-94.6%. In addition, through mass spectrometry analysis, the C-13/C-12 ratios of CH4 and CO2 were tested. By combining relevant data from other studies, we found that the delta C-13(1) values of hydrocarbon gases from the North Tianshan mud volcanoes (- 45.8 to - 37.2 parts per thousand) were consistent with values from oil-associated gases in the Junggar Basin, which indicated that the hydrocarbon gases might be from oil source-rock. The delta(CO2)-C-13C values of the mud volcano gases from the North Tianshan area (15.8-20.2 parts per thousand) are abnormally enriched in C-13. This may be due to biochemical actions or the reaction of residual CO2 and H-2.
英文关键词	Mud volcano Chemical composition Carbon isotope Gas origin Fluid origin North Tianshan area
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691534300002
WOS关键词	CARBON ISOTOPIC COMPOSITION ; SOUTHERN JUNGGAR BASIN ; TARIM BASIN ; NATURAL-GAS ; OIL CRACKING ; METHANE ; HYDROGEN ; GEOCHEMISTRY ; ACCUMULATION ; HYDROCARBONS
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368485
作者单位	[Gao, Xiaoqi; Wang, Yangyang; Li, Yujiang; Guo, Lishuang; Xiang, Yang; Jiang, Yuhan] MEMC, Natl Inst Nat Hazards, 1 Anningzhuang Rd, Beijing 100085, Peoples R China; [Xiang, Yang] Earthquake Adm Xinjiang Uygur Autonomous Reg, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Gao, Xiaoqi,Wang, Yangyang,Li, Yujiang,et al. Genetic origin of gas and fluid from the mud volcanoes in the North Tianshan area in Xinjiang Province, NW China[J],2021,36(3).
APA	Gao, Xiaoqi,Wang, Yangyang,Li, Yujiang,Guo, Lishuang,Xiang, Yang,&Jiang, Yuhan.(2021).Genetic origin of gas and fluid from the mud volcanoes in the North Tianshan area in Xinjiang Province, NW China.CARBONATES AND EVAPORITES,36(3).
MLA	Gao, Xiaoqi,et al."Genetic origin of gas and fluid from the mud volcanoes in the North Tianshan area in Xinjiang Province, NW China".CARBONATES AND EVAPORITES 36.3(2021).