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New Insight on the Stratigraphic-Diffusive Gas Hydrate System since the Pleistocene in the Dongsha Area of the Northeastern South China Sea

文献类型：期刊论文

作者Guan, Jinan2,3; Liang, Yian2,3,4; Wang, Shujia2,3; Wan, Lihua2,3; Fan, Shuanshi1; Su, Pibo5; Zhang, Wei5; Liang, Deqing2,3
刊名JOURNAL OF MARINE SCIENCE AND ENGINEERING
出版日期2022-03-01
卷号10期号:3页码:28
关键词stratigraphic-diffusive hydrate Dongsha slope sediment deposition process microbial methane production carbon fixation ability
DOI10.3390/jmse10030434
通讯作者Guan, Jinan(guanja@ms.giec.ac.cn) ; Zhang, Wei(zwgmgs@foxmail.com)
英文摘要The stratigraphic-diffusive type of gas hydrate system is formed by microbial methane produced in a shallow slope space when flowing laterally into hydrate stable zones and is worth studying for both energy supply and academic understanding. A deposition production model matching the vertical and lateral seabed morphological characteristics was constructed to show the accumulation process, layer timing sequence, and reservoir quality of the stratigraphic-diffusive hydrate system in the Dongsha slope sediments since the Pleistocene. Six representative key system factors at three selected moments (1.5 Ma, 700 ka B.P., and at present) have been exhibited during debris is continuously accumulating. The coexistence of the hydrate decomposition in the lower part and the formation in the upper part, and the uneven distribution of hydrates within the slope sediment surface are explained clearly. By comparing four geological cases with diverse environments, it is shown that the diffusive hydrate system is likely to develop into moderate geological conditions. The most powerful carbon fixation ability in this system was quantified within the time range of 100-50 ka B.P. Finally, it was verified that residual methane would converge near the seafloor interface and then eventually overflow out of the seabed into the seawater.
WOS关键词RIVER MOUTH BASIN ; CONTINENTAL-SLOPE ; METHANE HYDRATE ; BEARING SEDIMENTS ; 2-DIMENSIONAL MODEL ; SUBMARINE-CANYON ; SHENHU AREA ; SHORT-RANGE ; WATER-FLOW ; SEEPAGE
资助项目Natural Science Foundation of Guangdong Province, China[2020A1515011120] ; Natural Science Foundation of Guangdong Province, China[2021A1515011515] ; Natural Science Foundation of Guangdong Province, China[2021A1515010578] ; Guangdong Province Marine Economic Development (Six Major Marine Industries) Special Fund Project (Guangdong Natural Assets Cooperation)[58] ; National Natural Science Foundation of China[52106002] ; National Natural Science Foundation of China[51876211]
WOS研究方向Engineering ; Oceanography
语种英语
WOS记录号WOS:000775061000001
出版者MDPI
资助机构Natural Science Foundation of Guangdong Province, China ; Guangdong Province Marine Economic Development (Six Major Marine Industries) Special Fund Project (Guangdong Natural Assets Cooperation) ; National Natural Science Foundation of China
源URL[http://ir.giec.ac.cn/handle/344007/36021]  
专题中国科学院广州能源研究所
通讯作者Guan, Jinan; Zhang, Wei
作者单位1.South China Univ Technol, Sch Chem & Chem Engn, Key Lab Heat Transfer Enhancement & Energy Conser, Educ Minist, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Minist Nat Resources, MNR Key Lab Marine Mineral Resources, Guangzhou Marine Geol Survey, Guangzhou 510760, Peoples R China
推荐引用方式
GB/T 7714		 Guan, Jinan,Liang, Yian,Wang, Shujia,et al. New Insight on the Stratigraphic-Diffusive Gas Hydrate System since the Pleistocene in the Dongsha Area of the Northeastern South China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2022,10(3):28.
APA Guan, Jinan.,Liang, Yian.,Wang, Shujia.,Wan, Lihua.,Fan, Shuanshi.,...&Liang, Deqing.(2022).New Insight on the Stratigraphic-Diffusive Gas Hydrate System since the Pleistocene in the Dongsha Area of the Northeastern South China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,10(3),28.
MLA Guan, Jinan,et al."New Insight on the Stratigraphic-Diffusive Gas Hydrate System since the Pleistocene in the Dongsha Area of the Northeastern South China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 10.3(2022):28.

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来源：广州能源研究所

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