Article
Multidisciplinary Sciences
Jikun Feng, Huajian Yao, Ling Chen, Weitao Wang
Summary: The discovery of delaminated continental lithosphere provides new insights into the continental extrusion process of the Tibetan Plateau. Movement along the Ailao Shan-Red River fault accommodated the India-Asia convergence, but the activation of this fault is not well understood. Seismic evidence and geochemical observations suggest a linkage between massive lithospheric delamination and continental extrusion in southeastern Tibet.
NATIONAL SCIENCE REVIEW
(2022)
Article
Geosciences, Multidisciplinary
Zhongxian Zhao, Zhen Sun, Ning Qiu, Minghui Zhao, Jiazheng Zhang, Fucheng Li, Jian Lin, Eun Young Lee
Summary: A new kinematic method is proposed to study the rifting processes and paleo-lithospheric structure in the northern South China Sea. The analysis reveals a complex rifting-magmatic styles that are distinct from the Atlantic end-member passive margins and likely originated from a subducted setting. The research provides insights into the detailed tectonic and magmatic processes in the northern South China Sea margin.
Article
Geosciences, Multidisciplinary
Mengxue Liu, Dinghui Yang, Pengpeng Huangfu
Summary: The slowdown of plate velocity after the closure of the ocean influences the continental collision evolution by promoting extension inside the slab and triggering subducting slab break-off and polarity alteration at an earlier stage. The initial subducting angle, plate convergence velocity, and continental crustal rheological strength play significant roles in determining the continental collision modes.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Zhuo Xiao, Xinlei Sun, Jianfeng Yang, Yuan Gao
Summary: We reveal the upper mantle structures of the easternmost and northeastern Tibetan Plateau through dense-array adjoint waveform tomography. Seismic images show mushroom-shaped low-velocity zones above the uppermost mantle of the eastern plateau margin and slab-shaped high-velocity bodies beneath the eastern Himalayan syntaxis and the western Sichuan basin. These seismic features suggest asthenosphere upwelling and lithospheric delamination below the western Yangtze Craton, possibly induced by the retreat of the subducted Indian Plate. Our study highlights the important role of mantle dynamics in the growth of the Tibetan Plateau and suggests ongoing continental collision could reconstruct the Yangtze Craton.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Zheng Ji, Wen-Chun Ge, M. Santosh, Chuan-Biao Wan, Yan-Long Zhang, Jun-Hui Bi, Hao Yang, Yu Dong, Yan Jing
Summary: The closure of the Paleo-Asian Ocean along the Solonker Suture in the Central Asian Orogenic Belt is investigated. The rocks in the area show characteristics of subduction-related processes and partial melting of the mantle. The tectonic evolution of the region involves double-sided subduction, soft collision, and post-collisional extension.
GEOSCIENCE FRONTIERS
(2023)
Article
Geosciences, Multidisciplinary
Dongfang Song, Wenjiao Xiao, Brian F. Windley, Qigui Mao, Songjian Ao, Hao Y. C. Wang, Rui Li
Summary: The study examines Triassic provenance change in the foreland of the Alxa Block using field-based zircon U-Pb and Hf isotopic analysis, revealing that the final closure of the Paleo-Asian Ocean occurred in the Middle-Late Triassic.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
Kaifeng Zhao, Yinhe Luo, Yingjie Yang, Xiaozhou Yang
Summary: Researchers extracted dispersion curves from ambient noise data recorded at stations in the Qinling-Dabie orogenic belt and surrounding areas to construct a high-resolution 3-D shear wave velocity model, revealing the presence of remnant continental lithosphere and lithosphere delamination. The 3-D model supports a two-stage exhumation model of HP/UHP rocks in the orogenic belt.
Article
Geology
Cheng Cheng, Shuangying Li, Xiangyang Xie, Yuefeng Shen, Pingli Ying, Walter L. Manger, Tingli Cao
Summary: This study documents and analyzes the depositional environment evolution, sea-level fluctuation, and associated paleogeographic and paleoclimatic changes of the eastern Paleo-Tethys during the Permian period, based on field observations and petrographic analysis of the Xikou section in central China.
SEDIMENTARY GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Liqun Cheng, Yinxia Fang, Xiongwei Niu, Tingzi Li, Chongzhi Dong, Yanghui Zhao, Hao Hu, Fansheng Kong, Pingchuan Tan, Aiguo Ruan, Shaoping Lu, Jianke Fan, Hafeez Jeofry Muhammad, Weiwei Ding, Jiabiao Li, Xinguang Du
Summary: The South China Sea is a typical marginal sea basin that has undergone asymmetric spreading, ridge jumps, and intense volcanic activity. The results of a seismic experiment conducted in the South China Sea basin indicate that the Zhongnan fault zone played a crucial role in the expansion of the basin and there was oblique magma migration during post-spreading volcanism.
Article
Geochemistry & Geophysics
Wei Fu, Hesheng Hou, Rui Gao, Jianbo Zhou, Xingzhou Zhang, Lei Guo, Rui Guo, Zongdong Pan
Summary: The Solonker-Xar Moron-Changchun-Yanji Suture is considered as a tectonic boundary between the Central Asian Orogenic Belt and the North China Craton. The seismic reflection profiling along the suture zone revealed strong reflections from the middle crust to the topmost mantle, with significant subduction relict formations. The extensive study suggests that the suture zone was formed during the closure of the Paleo-Asian Ocean, followed by subsequent magmatic activities leading to the modification of the region's lithospheric structures.
Article
Geosciences, Multidisciplinary
Geng Liu, Xibin Han, Yanping Chen, Jun Li, Lehui Song, Xin Zhou, Bangqi Hu, Liang Yi
Summary: This study investigates the influence of tropical cyclones on depositional processes in the South Yellow Sea. The results show that tropical cyclones have a significant impact on the sedimentary evolution of the area, and solar activity may control the intensity of tropical cyclones through strengthening the walker circulation over the tropical Pacific.
JOURNAL OF EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
XingZe Zhang, YongHong Wang, GuangXue Li, Yong Liu, ChunHui Xiao
Summary: By analyzing sediment samples from the South Yellow Sea, this study reveals the relationship between the formation of the mineral greigite and the redox state and organic content controlled by the Yellow Sea Cold Water Mass and the Yellow Sea Warm Current. The presence of greigite in the late Marine Isotope Stage 3 (late MIS3) indicates the evolution of Yellow Sea currents.
Article
Geochemistry & Geophysics
Hongda Liang, Rui Gao, Shuai Xue
Summary: This study investigates the middle part of the Qinling Orogenic Belt using the magnetotelluric (MT) method, revealing distinguishable electrical structure characteristics between the South and North Qinling Belts. The South Qinling Belt is affected by strike slip extrusion, while the North Qinling Belt is relatively stable. The lithospheric mantle of the middle Qinling Orogenic Belt exhibits high resistivity, indicating the negligible lateral extrusion effect of the Tibetan Plateau material in this region.
Article
Geosciences, Multidisciplinary
C. Chiarabba, I. Menichelli, I. Bianchi, G. Giacomuzzi, P. De Gori
Summary: Studies on the Alpine-Himalayan collision system show that a significant portion of the continental crust is subducted, while some material is accreted in the orogens. The Apennines orogen is an ideal case for studying the evolution of such processes, thanks to high-quality seismic images.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Panpan Hu, Fengli Yang, Sanzhong Li, Ruoyu Zhang, Bin Ni, Erkang Qiu, Yanhui Suo
Summary: This study investigates the opposite thrust systems beneath the Subei-South Yellow Sea Basin in East China using seismic profiles, well data, and field observations. The study reveals the existence of two sets of thrust systems and proposes a new tectonic model to explain the early Mesozoic geodynamic and tectonic relations in the region.
EARTH-SCIENCE REVIEWS
(2022)