The paleo-lithospheric structure and rifting-magmatic processes of the northern South China Sea passive margin

Zhongxian Zhao; Zhen Sun; Ning  Qiu; Minghui Zhao; Jiazheng Zhang; Fucheng Li; Jian Li; Eun Young Lee

doi:10.1016/j.gr.2022.06.015

The paleo-lithospheric structure and rifting-magmatic processes of the northern South China Sea passive margin

Zhongxian Zhao, Zhen Sun, Ning Qiu, Minghui Zhao, Jiazheng Zhang, Fucheng Li, Jian Li, Eun Young Lee

Department of Geology

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

The northern South China Sea has complex rifting-magmatic styles, which are significantly distinct from the Atlantic end-member passive margins that initiated rifting in a craton, and was argued to originate from a subducted setting. Here we propose a new kinematic method to calculate the paleolithospheric structure and reconstruct the rifting processes along a 400 km seismic line in the northern South China Sea margin. The detailed paleo-tectonic setting and its linkage with the rifting-magmatic processes are explored. Seismic-gravity analysis reveals a ‘‘boudin-type” passive margin with a wide distal domain (>200 km) comprising discrete hyperextended zones of the Baiyun Sub-basin, Liwan Subbasin and a narrow continent-ocean transition (

Original language	English
Pages (from-to)	162–174
Number of pages	13
Journal	Gondwana Research
Volume	120
DOIs	https://doi.org/10.1016/j.gr.2022.06.015
Publication status	Published - Aug 2023

Austrian Fields of Science 2012

105106 Geodynamics
105124 Tectonics

Keywords

Boudin-type passive margin
Paleo-crustal thickness
Paleo-lithospheric thickness
South China Sea
Subducted slab setting

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10.1016/j.gr.2022.06.015

Cite this

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title = "The paleo-lithospheric structure and rifting-magmatic processes of the northern South China Sea passive margin",

abstract = "The northern South China Sea has complex rifting-magmatic styles, which are significantly distinct from the Atlantic end-member passive margins that initiated rifting in a craton, and was argued to originate from a subducted setting. Here we propose a new kinematic method to calculate the paleolithospheric structure and reconstruct the rifting processes along a 400 km seismic line in the northern South China Sea margin. The detailed paleo-tectonic setting and its linkage with the rifting-magmatic processes are explored. Seismic-gravity analysis reveals a {\textquoteleft}{\textquoteleft}boudin-type” passive margin with a wide distal domain (>200 km) comprising discrete hyperextended zones of the Baiyun Sub-basin, Liwan Subbasin and a narrow continent-ocean transition (",

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author = "Zhongxian Zhao and Zhen Sun and Ning Qiu and Minghui Zhao and Jiazheng Zhang and Fucheng Li and Jian Li and Lee, {Eun Young}",

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doi = "10.1016/j.gr.2022.06.015",

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AU - Zhao, Zhongxian

AU - Sun, Zhen

AU - Qiu, Ning

AU - Zhao, Minghui

AU - Zhang, Jiazheng

AU - Li, Fucheng

AU - Li, Jian

AU - Lee, Eun Young

PY - 2023/8

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AB - The northern South China Sea has complex rifting-magmatic styles, which are significantly distinct from the Atlantic end-member passive margins that initiated rifting in a craton, and was argued to originate from a subducted setting. Here we propose a new kinematic method to calculate the paleolithospheric structure and reconstruct the rifting processes along a 400 km seismic line in the northern South China Sea margin. The detailed paleo-tectonic setting and its linkage with the rifting-magmatic processes are explored. Seismic-gravity analysis reveals a ‘‘boudin-type” passive margin with a wide distal domain (>200 km) comprising discrete hyperextended zones of the Baiyun Sub-basin, Liwan Subbasin and a narrow continent-ocean transition (

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KW - Paleo-crustal thickness

KW - Paleo-lithospheric thickness

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KW - Subducted slab setting

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JO - Gondwana Research

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The paleo-lithospheric structure and rifting-magmatic processes of the northern South China Sea passive margin

Abstract

Austrian Fields of Science 2012

Keywords

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