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Chinese Academy of Sciences Institutional Repositories Grid
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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院油气资源研究重点实验室
Spatial-temporal variations of the gas hydrate stability zone and hydrate accumulation models in the Dongsha region, China

文献类型：期刊论文

作者Song, Yingrui1,2,3; Lei, Yuhong2,3; Zhang, Likuan2,3; Cheng, Ming2,3; Miao, Laicheng2; Li, Chao2,3; Liu, Naigui2,3
刊名FRONTIERS IN MARINE SCIENCE
出版日期2022-10-21
卷号9页码:15
关键词the South China Sea the Dongsha region gas hydrate gas hydrate stability zone accumulation model
DOI10.3389/fmars.2022.982814
英文摘要It is of great significance to study the spatial-temporal variations of the thickness of the gas hydrate stability zone (GHSZ) to understand the decomposition, migration, accumulation and dissipation of gas hydrate, the corresponding relationship between bottom-simulating reflectors (BSRs) and gas hydrate, and the distribution of heterogeneous gas hydrate. We selected the Dongsha region in the South China Sea (SCS) as the research object to calculate the spatial-temporal variation of the GHSZ since 10 Ma, analyzed the main factors affecting the thickness of the GHSZ, discussed the dynamic accumulation processes of gas hydrate, and proposed an accumulation model of gas hydrate in the Dongsha region. The results show that the thicknesses of the GHSZ in the study area were between 0 m and 100 m from 10 to 5.11 Ma, and the relatively higher bottom water temperature (BWT) was the key factor leading to the thinner thickness of the GHSZ during this period. From 5.11-0 Ma, the thickness of the GHSZ gradually increased but showed several fluctuations in thickness due to changes in the geothermal gradient, seawater depth, BWT, and other factors. The decrease in the BWT was the main factor leading to GHSZ thickening from 5.11 to 0 Ma. The thicknesses of the GHSZ are between 110 m and 415 m at present. The present spatial distribution features show the following characteristics. The GHSZ in the deep canyon area is relatively thick, with thicknesses generally between 225 m and 415 m, while the GHSZ in other areas is relatively thin, with thicknesses between 110 m and 225 m. Based on the characteristics of the GHSZ, two hydrate accumulation models are proposed: a double-BSRs model due to thinning of the GHSZ and a multilayer hydrate model due to thickness changes of the GHSZ, with single or multiple BSRs.
WOS关键词FLUID-FLOW ; METHANE ; BASIN ; SEEPAGE ; SYSTEM ; VOLUME ; BSRS
资助项目Key Research Program of the Institute of Geology and Geophysics, CAS[IGGCAS-201903] ; National Natural Science Foundation of China[(42030808] ; Strategic priority Research Program of the Chinese Academy of Sciences[XDA14010202]
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000883746300001
出版者FRONTIERS MEDIA SA
资助机构Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences ; Strategic priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/107707]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Lei, Yuhong
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Song, Yingrui,Lei, Yuhong,Zhang, Likuan,et al. Spatial-temporal variations of the gas hydrate stability zone and hydrate accumulation models in the Dongsha region, China[J]. FRONTIERS IN MARINE SCIENCE,2022,9:15.
APA Song, Yingrui.,Lei, Yuhong.,Zhang, Likuan.,Cheng, Ming.,Miao, Laicheng.,...&Liu, Naigui.(2022).Spatial-temporal variations of the gas hydrate stability zone and hydrate accumulation models in the Dongsha region, China.FRONTIERS IN MARINE SCIENCE,9,15.
MLA Song, Yingrui,et al."Spatial-temporal variations of the gas hydrate stability zone and hydrate accumulation models in the Dongsha region, China".FRONTIERS IN MARINE SCIENCE 9(2022):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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