Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin
To detailly describe the tectonic evolution history of Lishui Sag of the East China Sea Shelf Basin, eight seismic sections from north to south were selected. The balanced section technology was used to restore structural evolution section, and some parameters such as extension amount, ratio and rat...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Petroleum Geology and Experiment
2021-11-01
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| Series: | Shiyou shiyan dizhi |
| Subjects: | |
| Online Access: | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202106949 |
| _version_ | 1797277198700249088 |
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| author | Huan LIU Changhai XU Wenlong SHEN Danping WANG Yuling DENG |
| author_facet | Huan LIU Changhai XU Wenlong SHEN Danping WANG Yuling DENG |
| author_sort | Huan LIU |
| collection | DOAJ |
| description | To detailly describe the tectonic evolution history of Lishui Sag of the East China Sea Shelf Basin, eight seismic sections from north to south were selected. The balanced section technology was used to restore structural evolution section, and some parameters such as extension amount, ratio and rate were measured. The extension characteristics of the sag during ten geological periods were described quantitatively and finely, moreover, the stage and spatial extension characteristics were also discussed. The structural evolution of the sag were classified into six stages: the initial, early and late stages of fault depression, the depression stage, the inversion stage and the stable subsidence stage. It was considered that the most intense stage for fault depression and fault activity in the sag was the deposition stage of the lower Lingfeng Formation (T90-T88), and the extension and contraction characteristics of different evolution stages were different in space. The tectonic evolution of the Lishui Sag, controlled by the geodynamic background of retrogressive subduction of the (paleo) Pacific plate to the Eurasian plate, reflects the rule of tectonic and sedimentary migration from west to east in the East China Sea Shelf Basin since the Late Mesozoic, and is closely related to the interaction of the convergence plates around the East China Sea shelf Basin. |
| first_indexed | 2024-03-07T15:45:10Z |
| format | Article |
| id | doaj.art-109c5fabaa1b4d1daeea8af31376ce19 |
| institution | Directory Open Access Journal |
| issn | 1001-6112 |
| language | zho |
| last_indexed | 2024-03-07T15:45:10Z |
| publishDate | 2021-11-01 |
| publisher | Editorial Office of Petroleum Geology and Experiment |
| record_format | Article |
| series | Shiyou shiyan dizhi |
| spelling | doaj.art-109c5fabaa1b4d1daeea8af31376ce192024-03-05T04:36:34ZzhoEditorial Office of Petroleum Geology and ExperimentShiyou shiyan dizhi1001-61122021-11-0143694995710.11781/sysydz202106949sysydz-43-6-949Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf BasinHuan LIU0Changhai XU1Wenlong SHEN2Danping WANG3Yuling DENG4School of Ocean and Earth Science, Tongji University, Shanghai 200092, ChinaSchool of Ocean and Earth Science, Tongji University, Shanghai 200092, ChinaShanghai Branch of CNOOC China Limited, Shanghai 200335, ChinaInstitute of Exploration and Development, SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, ChinaSchool of Ocean and Earth Science, Tongji University, Shanghai 200092, ChinaTo detailly describe the tectonic evolution history of Lishui Sag of the East China Sea Shelf Basin, eight seismic sections from north to south were selected. The balanced section technology was used to restore structural evolution section, and some parameters such as extension amount, ratio and rate were measured. The extension characteristics of the sag during ten geological periods were described quantitatively and finely, moreover, the stage and spatial extension characteristics were also discussed. The structural evolution of the sag were classified into six stages: the initial, early and late stages of fault depression, the depression stage, the inversion stage and the stable subsidence stage. It was considered that the most intense stage for fault depression and fault activity in the sag was the deposition stage of the lower Lingfeng Formation (T90-T88), and the extension and contraction characteristics of different evolution stages were different in space. The tectonic evolution of the Lishui Sag, controlled by the geodynamic background of retrogressive subduction of the (paleo) Pacific plate to the Eurasian plate, reflects the rule of tectonic and sedimentary migration from west to east in the East China Sea Shelf Basin since the Late Mesozoic, and is closely related to the interaction of the convergence plates around the East China Sea shelf Basin.https://www.sysydz.net/cn/article/doi/10.11781/sysydz202106949balanced sectionextension and contraction parametersfault activity ratestectonic evolutionlishui sageast china sea shelf basin |
| spellingShingle | Huan LIU Changhai XU Wenlong SHEN Danping WANG Yuling DENG Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin Shiyou shiyan dizhi balanced section extension and contraction parameters fault activity rates tectonic evolution lishui sag east china sea shelf basin |
| title | Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin |
| title_full | Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin |
| title_fullStr | Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin |
| title_full_unstemmed | Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin |
| title_short | Tectonic evolution characteristics of Lishui Sag, East China Sea Shelf Basin |
| title_sort | tectonic evolution characteristics of lishui sag east china sea shelf basin |
| topic | balanced section extension and contraction parameters fault activity rates tectonic evolution lishui sag east china sea shelf basin |
| url | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202106949 |
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