| Shallow gas and gas hydrate accumulations influenced by magmatic complexes in the Pearl River Mouth Basin, South China Sea | |
Jin, Jiapeng1,2,3,4; Wang, Xiujuan1,2,3,4; Zhang, Zhengyi3,4,5,6; He, Min7; Magee, Craig8; Li, Jie7 ; Li, Yuanping7; Li, Sanzhong1,2,3,4; Luan, Zhendong3,4,5,6; Zhang, Guangxu3,4,5,6; Sun, Luyi3,4,5,6
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| 2022-11-01 | |
| 发表期刊 | MARINE GEOLOGY
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| ISSN | 0025-3227 |
| 卷号 | 453页码:17 |
| 通讯作者 | Wang, Xiujuan(wangxiujuan@ouc.edu.cn) |
| 摘要 | We analyse occurrences of gas hydrates and free gases above a 1200 km2 complex of igneous volcanoes and sills using newly acquired three-dimensional (3D) seismic data in the Pearl River Mouth Basin of the South China Sea. In strata above volcano summits, we recognize three enhanced reflection layers at different stratigraphic levels, including discontinuous Bottom Simulating Reflectors (BSRs) and pluming BSRs. We also show that the lateral tips of eight sills, which at times appear to terminate against supra-sill faults, underlie gas chimneys linked to gas hydrate and free gas in shallower strata. These supra-sill faults and gas chimneys, as well as supra-volcano faults, provided pathways for upward fluid (gas) migration from deep sources. Given the spatial relationship between volcanoes, sills, free gas, and gas hydrates, we suggest that the igneous structures focused fluid migration into overlying faults and gas chimneys. We also explore whether higher geothermal gradient at the summits of the volcanoes caused the base of gas hydrate stability zone to be shallower, forming a pluming BSR. Our study highlights how volcanic systems can influence the formation and distribution of later gas hydrate and free gas. |
| 关键词 | Gas hydrate Free gas Magmatism Fluid migration Pearl River Mouth Basin |
| DOI | 10.1016/j.margeo.2022.106928 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42020100] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2021QNLM020002] ; National Natural Science Foundation of China Innovation Group Project[42121005] ; Laboratory for Marine Science and Technology (Qingdao) Initial Foundation[JCZX202019] ; National Key R&D Program of China[2017YFC0307301-1] ; Pilot National, and Research start-up funds of Zhufeng Scholars Program |
| WOS研究方向 | Geology ; Oceanography |
| WOS类目 | Geosciences, Multidisciplinary ; Oceanography |
| WOS记录号 | WOS:000888294700002 |
| 出版者 | ELSEVIER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/180226 |
| 专题 | 海洋地质与环境重点实验室 深海极端环境与生命过程研究中心 |
| 通讯作者 | Wang, Xiujuan |
| 作者单位 | 1.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Submarine Geosci & Prospecting Tech, MOE, Qingdao 266100, Peoples R China 2.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Deep Sea Multidisciplinary Res Ctr, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Megasci, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 7.China Natl Offshore Oil Corp Ltd, Shenzhen Branch, Shenzhen 518054, Peoples R China 8.Univ Leeds, Inst Geophys & Tecton, Sch Earth & Environm, Leeds LS2 9JT, England |
| 推荐引用方式 GB/T 7714 | Jin, Jiapeng,Wang, Xiujuan,Zhang, Zhengyi,et al. Shallow gas and gas hydrate accumulations influenced by magmatic complexes in the Pearl River Mouth Basin, South China Sea[J]. MARINE GEOLOGY,2022,453:17. |
| APA | Jin, Jiapeng.,Wang, Xiujuan.,Zhang, Zhengyi.,He, Min.,Magee, Craig.,...&Sun, Luyi.(2022).Shallow gas and gas hydrate accumulations influenced by magmatic complexes in the Pearl River Mouth Basin, South China Sea.MARINE GEOLOGY,453,17. |
| MLA | Jin, Jiapeng,et al."Shallow gas and gas hydrate accumulations influenced by magmatic complexes in the Pearl River Mouth Basin, South China Sea".MARINE GEOLOGY 453(2022):17. |
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| 1-s2.0-S002532272200（30321KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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