Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains, China

doi:10.1016/j.gexplo.2013.10.006

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	Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains, China
	Sun, Zhongjun 1; Yang, Zhibin 1; Mei, Hai 2; Qin, Aihua 1; Zhang, Fugui 1; Zhou, Yalong 1; Zhang, Shunyao 1; Mei, Bowen 2
刊名	JOURNAL OF GEOCHEMICAL EXPLORATION
	2014
卷号	139 页码:160-169
关键词	Gas hydrate Mid-latitude permafrost Qilian Mountains Geochemical indicator Gas hydrate accumulation model
ISSN号	0375-6742
DOI	10.1016/j.gexplo.2013.10.006
英文摘要	In this study, the Muli gas hydrate reservoir in the Qilian Mountains was chosen as a test area for the geochemical exploration of gas hydrates in mid-latitude regions. Soil headspace gases, acid-extracted hydrocarbons and stable carbon isotopes of methane, and soil magnetic susceptibility as well as microbes were tested. The results show that the distribution of geochemical anomalies can be well correlated with the underlying gas hydrate reservoir. Acid-extracted hydrocarbons, soil headspace gases, and the stable carbon isotopes of methane can be considered as major indicators for geochemical exploration of gas hydrates, whereas magnetic susceptibility and microbes served as complementary indicators. The stable carbon isotopes of methane and the hydrocarbon composition of the surface geochemical anomalies indicated a thermogenic origin, which shows that the gas source of the potential gas hydrate reservoir in this area may be contributed by deep oil and coal-formed gases. An accumulation model for the gas hydrate reservoirs was also developed and an integrated exploration project for gas hydrate, oil and coal bed methane is also proposed for the Muli area. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	环境地质学
WOS关键词	HYDROCARBON GASES ; NATURAL-GAS ; ACCUMULATIONS ; METHANE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000334480400016
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/41064]
专题	中国地质科学院地球物理地球化学勘查研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geophys & Geochem Explorat, Key Lab Geochem Cycling Carbon & Mercury Earths C, Langfang 065000, Peoples R China 2.China Geol Survey, Geochem Res Ctr Soil Qual, Beijing, Peoples R China 3.AE&E Geomicrobial Technol Beijing Inc, Beijing 102200, Peoples R China
推荐引用方式 GB/T 7714	Sun, Zhongjun,Yang, Zhibin,Mei, Hai,et al. Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains, China[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2014,139:160-169.
APA	Sun, Zhongjun.,Yang, Zhibin.,Mei, Hai.,Qin, Aihua.,Zhang, Fugui.,...&Mei, Bowen.(2014).Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains, China.JOURNAL OF GEOCHEMICAL EXPLORATION,139,160-169.
MLA	Sun, Zhongjun,et al."Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains, China".JOURNAL OF GEOCHEMICAL EXPLORATION 139(2014):160-169.