Xiaobin Shi

Yueyang Changling Equipment Research Institute (China)

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Xuelin Qiu

Chinese Academy of Sciences

Xiaoqiu Yang

South China Sea Institute Of Oceanology

Chuanhai Yu

South China Sea Institute Of Oceanology

Di Zhou

Chinese Academy of Sciences

Xingwei Guo

Qingdao Institute of Marine Geology

Kanyuan Xia

South China Sea Institute Of Oceanology

Minghui Zhao

Nanjing Medical University

Shimin Wu

Yangtze Optical Electronic (China)

Shaohong Xia

South China Sea Institute Of Oceanology

Junfeng Zhao

Guangzhou Medical University

Cooperative Institutions

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Institute of Oceanology

South China Sea Institute Of Oceanology

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)

China Geological Survey

Chinese Academy of Geological Sciences

Nanjing University

Sun Yat-sen University

Guangzhou Institute of Geochemistry

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Rifting/spreading propagation interacts with preexisting transform faults: 3D geodynamic modeling

Frontiers in Earth Science (2023)

Hao Li Jie Liao Yongqiang Shen Jiarong Qing Yangming Wu

The divergent rifting/spreading centers and the strike-slip transform faults are the essential tectonic units on Earth, the dynamic evolution of which regulates the development of rifting/spreading basins. The propagation of rifting/spreading centers may interact with pre-existing transform faults, but how they interact with each other remains enigmatic. Here we use three-dimensional geodynamical numeric models to systematically simulate the interaction between rifting/spreading propagation and the pre-existing transform faults. Our model results provide the following findings. 1) The pre-existing transform faults affect rifting/spreading propagation promoting the formation of ridge segments with an offset distance, facilitating the process of spreading of the western sea basin and restraining the propagation of the east sea basin. Yet, the evolution of the transform faults is regulated by rifting/spreading propagation, featured by the increase of its length, the change in its width along strike and the presence of lineated magmatism. 2) The initial length and orientation of the pre-existing transform faults largely affect rifting/spreading propagation, i.e., large transform fault length favors the formation of large offset between ridge segments, and oblique transform faults facilitate the formation of overlapped spreading centers. 3) Model results shed new light on the evolution of the South China Sea basin, implying that the observed ridge segments in the east and southwest sub-basins, the difference of the Zhongnan Fault Zone width along strike and the lineated volcanos along the Zhongnan Fault Zone are the results of the interaction between the rifting/spreading propagation and the pre-existing transform fault.

Transform fault

Echelon formation

Seafloor Spreading

10.3389/feart.2022.1054747

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Citations (1)

Syn-Rift Subsidence Deficit of the Qiongdongnan Basin and the Synchronous Rapid Uplift of South Hainan Island: Some Clues on Surface Response to the Hainan Plume, NW South China Sea

2014 AGU Fall Meeting (2014)

Xiaobin Shi

Rift zone

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The Exhumation Process of Mufushan Granite in Jiangnan Uplift Since Cenozoic: Evidence from Low‐Temperature Thermochronology

Chinese Journal of Geophysics (2013)

Shi Hong-cai Xiaobin Shi Yang Xiaoqiu Jiang Hai–yan

Abstract Jiangnan uplift located in the collision zone between Yangtze and Cathaysia block is the key to interpret the tectonic evolution of South China block. The Cenozoic thermal history and the uplift processes of Mufushan pluton are constrained by the combination of analysis of apatite fission track and (U‐Th‐Sm)/He ages with modeling of fission track length distribution. Based on the analysis of thermochronological dating and regional tectonic setting, the authors probed into the relationship between the thermochronological evolution and the tectonic development. The exhumation of plutons arrived at about 4800 m since 80 Ma, and the uplift processes were not uniform in space, and different plutons had somewhat different uplift processes. Thermal history modeling of the AFT data shows that the Mufushan pluton experienced three episodes of cooling event, two rapid exhumation events happened in Upper Cretaceous‐Paleocene (about 80∼50 Ma) and Upper Miocene (since 10 Ma). There is a period of relative thermal stability between 50 and 10 Ma. The first stage of rapid uplifting during 80∼50 Ma in this region is coeval with extension episode of Mid‐Upper Yangtze during Himalayan which resulted in the formation of fault basin and exhumation of shoulder block; the Upper Miocene rapid cooling since 10 Ma is attributed to the westward movement and subduction of Pacific plate. The uplift and exhumation of Mufushan pluton since Late Yanshanian led to a good deposition response in basins and the cooling events of three phases just coincided with the regional tectonic settings of study area.

Thermochronology

Fission track dating

Tectonic uplift

10.1002/cjg2.20028

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Citations (23)

Thermal and rheological structures of the Xisha Trough, South China Sea

Tectonophysics (2002)

Xiaobin Shi Di Zhou Xuelin Qiu Yixiang Zhang

Solidus

Trough (economics)

Seafloor Spreading

Low-velocity zone

10.1016/s0040-1951(02)00162-2

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Citations (46)

Thermo-tectonic history of coastal NW South China Sea: A low-temperature thermochronology study

Tectonophysics (2022)

Xiaobin Shi Barry P. Kohn Chuanhai Yu Yuntao Tian Guangwei Li

Thermochronology

Passive margin

Tectonic phase

Continental Margin

Neogene

10.1016/j.tecto.2022.229344

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Citations (7)

Crustal structure in an onshore–offshore transitional zone near Hong Kong, northern South China Sea

Journal of Asian Earth Sciences (2009)

Shaohong Xia Minghui Zhao Xuelin Qiu Huilong Xu Xiaobin Shi

Continental Margin

10.1016/j.jseaes.2009.11.004

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Citations (38)

The application of large volume airgun sources to the onshore-offshore seismic surveys: implication of the experimental results in northern South China Sea

Chinese Science Bulletin (2007)

Xuelin Qiu Yong Chen Rixiang Zhu Huilong Xu Xiaobin Shi

Upgrade

Seismic exploration

10.1007/s11434-007-0051-1

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Citations (23)

Characteristics of Cenozoic tectonic subsidence in Jiyang depression

Zhongguo Shiyou Daxue xuebao. Ziran kexue ban (2006)

Xingwei Guo Xiaobin Shi

Tectonic subsidence histories of more than 40 wells from four main sags in Jiyang depression were calculated by back-stripping technique.The extensional factors of the wells were estimated by comparing with the finite extension rate model.The analysis of the Cenozoic tectonic subsidence shows that the tectonic subsidence in Jiyang depression agrees well with the regional tectonic evolution.Of the four sags,Dongying sag is the mostly extended,Huimin sag is the second,and Chezhen sag is the least.The largest subsidence center moved from southwest to northeast gradually.The extensional factor of single well of these sags was affected by the boundary faults.Since 14 Ma,there was a subsidence acceleration stage,and the subsidence happened earlier and was stronger in the northeast than in the southwest.

Tectonic subsidence

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Data Processing Methods of Marine Geothermal Measurement on the Northern Margin of the South China Sea

Geoscience (2006)

Xing Xu Xiaobin Shi Xianhu Luo Xingwei Guo Xiaoqiu Yang

To investigate the geothermal distribution of the northern margin of the South China Sea,EWING-type heat flow probe was employed to measure the temperature gradient of the marine sediments in three regions,and sediment samples were cored for thermal conductivity with a thermal conductivity meter TK04.After a series of detailed data processing,the heat flow data of three representative sites HD343,HS82 and HX129 were obtained.The analyses show that it is necessary for EWING-type heat flow probe to correct the original temperature data for logger offsets and compute equilibrium temperatures for each logger.The relative temperature offset between two MTLs is thought to be a fixed value,which depends mostly on their own nature,not changing from site to site.After penetration,how the recorded temperature changes with time depends on the friction heat(amount) produced by penetration,if the temperature raised by friction heating is higher than ambient temperature,the temperature will drop slowly to the ambient temperature,otherwise,the temperature will raise slowly to the ambient temperature.After in-situ temperature and pressure are corrected,the thermal conductivities will decrease about 4% to 5%.The thermal gradients for the three sites are 81,109 and 94 ℃/km respectively,and thermal conductivities are 0.979,0.785 and 0.886 W/(m·K)respectively,and heat flow values are 79,86 and 83 mW/m~(2) respectively.

Heat flow

Temperature Gradient

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Recent progress of deep seismic experiments and studies of crustal structure in northern South China Sea*

Progress in Natural Science Materials International (2003)

Xuelin Qiu Xiaobin Shi Pin Yan Shimin Wu Di Zhou

Seismometer

Continental Margin

Hydrophone

10.1080/10020070312331343890

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Citations (15)