globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2019.228303
论文题名:
Structural architecture and tectonic evolution of the Cenozoic Zhanhua Sag along the Tan–Lu Fault Zone in the eastern North China: Reconciliation of tectonic models on the origin of the Bohai Bay Basin
作者: Zhang Y.; Dilek Y.; Zhang F.-Q.; Chen H.-L.; Zhu C.-T.; Hao X.-F.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 775
语种: 英语
中文关键词: Bohai Bay Basin in the eastern North China ; Paleogene Zhanhua Sag ; Slab rollback–induced continental extension ; Strike–slip fault tectonics and strain partitioning ; Tan–Lu Fault Zone
英文关键词: Barium compounds ; Kinematics ; Plates (structural components) ; Stratigraphy ; Fault zone ; Internal structure ; Normal fault system ; North China ; Strain partitioning ; Structural architecture ; Tectonic evolution ; Zhanhua Sag ; Fault slips ; Cenozoic ; depocenter ; isopach map ; kinematics ; plate tectonics ; strain partitioning ; strike-slip fault ; structural geology ; subduction ; tectonic evolution ; Bohai Sea ; Bohaiwan Basin ; China ; Tan-Lu Fault Zone
英文摘要: The Zhanhua Sag, a major depocenter within the larger Bohai Bay Basin (BBB) along the Tan–Lu Fault Zone (TLFZ) in the eastern North China, developed through two successive phases with different stress regimes during the Paleogene. The kinematics and the slip history of the NW–SE– and N–S–striking normal fault systems strongly controlled the internal structure and stratigraphy of the Paleocene–Lower Eocene strata in the Zhanhua Sag during Phase 1. Isopach maps of the Paleocene–Lower Eocene stratigraphy show ~4000–m–thick clastic rock sequences in these structurally controlled depocenters. The average dip–slip rates of the NW–SE– and N–S–striking faults were 78.96 and 50.82 m/m.y. (respectively) in the Paleocene–Early Eocene, but decreased to 45.87 and 35.81 m/m.y. in the Middle–Late Oligocene. The NE–SW–striking fault systems and their slip history controlled the development of the Middle Eocene–Oligocene depocenters and their strata during Phase 2. The average dip–slip rate of the NE–SW–striking faults was 10.47 m/m.y. in the Paleocene–Early Eocene but increased to 93.49 m/m.y. in the Middle–Late Oligocene. The NE–SW–oriented faults cut across and displace the NW–SE–striking faults, indicating their relatively younger ages. These fault patterns and kinematics recorded in the Zhanhua Sag reflect an abrupt change in extension directions from ENE–WSW to NW–SE before and after the Middle Eocene that was related to a reversal in the slip direction from sinistral to dextral along the TLFZ. This slip reversal was, in turn, a result of a major change in the subduction direction of the Pacific Plate beneath eastern Asia and in the mode of strain partitioning across the TLFZ in the continental upper plate. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170748
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作者单位: School of Earth Sciences, Zhejiang University, Hangzhou, 310027, China; Structural Research Center of Oil & Gas Bearing Basin of Ministry of Education, Hangzhou, 310027, China; Department of Geology & Environmental Earth Science, Miami University, Oxford, OH 45056, United States; Earthquake Administration of Zhejiang Province, Hangzhou, 310013, China; Shengli Oilfield Company, Sinopec, Dongying, 257001, China

Recommended Citation:
Zhang Y.,Dilek Y.,Zhang F.-Q.,et al. Structural architecture and tectonic evolution of the Cenozoic Zhanhua Sag along the Tan–Lu Fault Zone in the eastern North China: Reconciliation of tectonic models on the origin of the Bohai Bay Basin[J]. Tectonophysics,2020-01-01,775
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