| Interaction between magmatism and polygonal faults revealed by three-dimensional seismic data in the Zhongjiannan Basin, South China Sea | |
Wang, Wenlong1,2,5; Wang, Xiujuan2,3,4; Lu, Yintao6 ; Li, Sanzhong2,3,4; Jin, Jiapeng2; Suo, Yanhui2,3,4; Guo, Yiqun7; Zhang, Guangxu1,2; Zhang, Zhengyi2,3,4; Zhou, Jilin3,4
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| 2024-05-01 | |
| 发表期刊 | MARINE AND PETROLEUM GEOLOGY
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| ISSN | 0264-8172 |
| 卷号 | 163页码:15 |
| 通讯作者 | Wang, Xiujuan([email protected]) |
| 摘要 | The features of magmatism and polygonal faults are unveiled through a comprehensive analysis of highresolution and reprocessed three-dimensional (3D) seismic data covering 1200 km 2 in the Zhongjiannan Basin, South China Sea. These structures influence the hydrocarbons formation and migration, and the interaction between them is significant for hydrocarbon exploration. We identified magmatic bodies, including eight volcanoes, fifty sills, and a single igneous diapir, are mainly developed in three stages: 27.9 -23 Ma (between T70 and T60), around 11.6 Ma (T40), and after 5.3 Ma (T30). The polygonal faults, characterized by linear, polygonal, and radial configurations, are extensively distributed within Miocene and Quaternary sediments. In the platform, polygonal faults manifest linear or polygonal attributes, while in the basin floor, they show a polygonal shape. Particularly, above volcanoes and the igneous diapir, the polygonal faults exhibit radial configurations. However, among volcanoes, few polygonal faults are discerned based on the coherence attribute slice. The controlling factors influencing the distribution of polygonal faults are the lithological disparity, temperature, and pressure. Radial fault formation is promoted by volcanoes and igneous diapir through differential compaction. The resultant vertical pathways formed by volcanoes and overlying radial faults play a crucial role in adjusting pressure differentials or water discharges. Consequently, these pathways disrupt the requisite conditions for the formation of polygonal faults among volcanoes. In the basin floor, magma intrusion occurs along the planes of polygonal faults, giving rise to inclined, spoon-shaped, and bowl-shaped sills. As weak zones, polygonal faults worked as connectors for sills at different depths. Hence, pre-existing polygonal faults are considered pathways facilitating magma migration from the lower Miocene to Pliocene strata, ultimately contributing to sill formation in shallow sediments. This study advances our understanding of the intricate interaction between polygonal faults and magmatism within sedimentary basins. |
| 关键词 | Magmatism Sills Polygonal faults Interaction South China sea |
| DOI | 10.1016/j.marpetgeo.2024.106793 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R & D Program of China[2023YFE0119900]; National Natural Science Foundation of China[42376058]; National Natural Science Foundation of China[42076219]; China Scholarship Council, China[202204910357] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001218689600001 |
| 出版者 | ELSEVIER SCI LTD |
| WOS关键词 | CENOZOIC MAGMATISM ; CRUSTAL STRUCTURE ; SILL EMPLACEMENT ; VORING BASIN ; SYSTEMS ; MARGIN ; ORIGIN ; ARCHITECTURE ; VOLCANISM ; POCKMARKS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/185687 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Wang, Xiujuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Laoshan Lab, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 3.Ocean Univ China, MOE, Frontiers Sci Ctr Deep Ocean Multisphere & Earth S, Key Lab Submarine Geosci & Prospecting Tech, Qingdao 266100, Peoples R China 4.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Petrochina Hangzhou Res Inst Geol, Hangzhou 310023, Peoples R China 7.China Geol Survey, Haikou Marine Geol Survey Ctr, Haikou 571127, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Wenlong,Wang, Xiujuan,Lu, Yintao,et al. Interaction between magmatism and polygonal faults revealed by three-dimensional seismic data in the Zhongjiannan Basin, South China Sea[J]. MARINE AND PETROLEUM GEOLOGY,2024,163:15. |
| APA | Wang, Wenlong.,Wang, Xiujuan.,Lu, Yintao.,Li, Sanzhong.,Jin, Jiapeng.,...&Zhou, Jilin.(2024).Interaction between magmatism and polygonal faults revealed by three-dimensional seismic data in the Zhongjiannan Basin, South China Sea.MARINE AND PETROLEUM GEOLOGY,163,15. |
| MLA | Wang, Wenlong,et al."Interaction between magmatism and polygonal faults revealed by three-dimensional seismic data in the Zhongjiannan Basin, South China Sea".MARINE AND PETROLEUM GEOLOGY 163(2024):15. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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