Zhenhua Xue

China University of Geosciences

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Yang Chu

Kangwon National University

Wei Lin

Chinese Academy of Sciences

Michel Faure

Institut des Sciences de la Terre

Wenbin Ji

Chinese Academy of Sciences

Yan Chen

Institut des Sciences de la Terre

Zhentian Feng

Geological Exploration Institute of Shandong Zhengyuan

Qingchen Wang

Chinese Academy of Sciences

Wei Wei

PetroChina Southwest Oil and Gas Field Company (China)

Wei Wei

Tongji University

Bin Liu

Shanghai Cancer Institute

Cooperative Institutions

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Institute of Geology and Geophysics

Centre National de la Recherche Scientifique

Université d'Orléans

Bureau de Recherches Géologiques et Minières

Institut des Sciences de la Terre

Research Institute of Petroleum Exploration and Development

Institut des Sciences de la Terre d'Orléans

Czech Academy of Sciences, Institute of Geology

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Joint development and tectonic stress field evolution in the southeastern Mesozoic Ordos Basin, west part of North China

Journal of Asian Earth Sciences (2016)

Lin Jiang Zhen Qiu Qingchen Wang Yusen Guo Chaofan Wu

Stress field

10.1016/j.jseaes.2016.06.017

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Citations (42)

First Early Permian Paleomagnetic Pole for the Yili Block and its Implications for Late Paleozoic Postorogenic Kinematic Evolution of the SW Central Asian Orogenic Belt

Tectonics (2018)

Xin Zhu Bo Wang Yan Chen Hongsheng Liu Chorng‐Shern Horng

Abstract We conducted a paleomagnetic study on the Early Permian volcanic and sedimentary rocks, and the Neoproterozoic mafic dikes in the Yili Block, NW China. Magnetite and hematite were proven to be the principal magnetic remanence carriers. Demagnetizations revealed stable characteristic remanence magnetizations with a sole reversed magnetic polarity. The magnetic remanence of only the Early Permian strata turned out to be primary based on positive fold tests; meanwhile, the magnetic remanence age of the mafic dikes is ambiguous. Accordingly, the first Early Permian paleomagnetic pole for the Yili Block is calculated at λ = 81.5°N, φ = 256.5°E, N = 11, and A 95 = 10.9°. Comparisons of this new pole with published ones from the Yili, Tarim, and South Junggar blocks provide new quantitative constraints on late Paleozoic kinematic evolution of the SW Central Asian Orogenic Belt: (1) Between the Yili and Tarim blocks, significant relative movement took place along major strike‐slip faults during the Late Carboniferous to Early Permian (580 ± 290 km) and the Early to Late Permian (585 ± 340 km), and the displacement rate increased from the Late Carboniferous to Early Permian (~19.3 ± 9.7 mm/yr) to the Early to Late Permian (~29.3 ± 17.0 mm/yr); (2) a significant relative rotation of 28.3° ± 18.3° in the Late Permian, and a lateral displacement of 630 ± 295 km after the Late Permian occurred between the Yili and South Junggar blocks. The significant strike‐slip movements played an important role in the formation of the Central Asian Orogenic Belt and should be considered with great attention in tectonic and paleogeographic reconstructions.

Dike

10.1029/2017tc004642

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Citations (31)

Emplacement age and tectonic implications of the brecciated limestone at the edge of the Longmenshan klippe

Science China Earth Sciences (2015)

Zhenhua Xue Qinghua Shang Wenying Jiang Qingchen Wang ShuangJian Li

10.1007/s11430-015-5209-0

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Citations (1)

Cretaceous Episodic Extension in the South China Block, East Asia: Evidence From the Yuechengling Massif of Central South China

Tectonics (2019)

Yang Chu Wei Lin Michel Faure Zhenhua Xue Wenbin Ji

Abstract In the Cretaceous, the subduction of the Izanagi/Paleo‐Pacific plates beneath the South China Block (SCB) created a wide back‐arc domain characterized by numerous extensional basins coeval with voluminous magmatism. The SCB witnessed the whole evolution by records of widespread extensional structures to accommodate the lithospheric stretching. In the interior of the SCB, the Yuechengling (YCL) Massif preserves a large, low‐angle detachment fault, the Ziyuan Detachment (ZYD) at the western margin, and a high‐angle ductile normal fault, the Tianhu Fault (THF), in the middle of the massif. Both faults display ductile shearing with top‐to‐the west kinematics but play different roles in two stages of extension. In the early stage at 140–120 Ma, the THF deformed the eastern YCL pluton at a temperature of ~350 °C, but the ZYD shows limited movement at this time. On the contrary, the later stage (100–85 Ma) is characterized by pervasive middle‐ to high‐temperature deformation (~400–500 °C) and rapid exhumation along the ZYD, but the THF only underwent a near‐surface brittle overprint. Across the SCB, the two‐phase extension is widely recorded in other extensional structures and coincides with magmatic flare‐ups at its eastern margin, suggesting episodic changes in the subduction dip. Combined with two compressional events that took place between the intervals of extension, the SCB experienced two cycles of compression‐extension at 155–120 and 120–85 Ma. This periodicity is tentatively interpreted as a combined effect from the Izanagi/Paleo‐Pacific subduction angle change and a thickening‐foundering process in the arc region.

Massif

Detachment fault

Metamorphic core complex

Extensional fault

Extensional tectonics

10.1029/2019tc005516

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Citations (116)

Origin of the Late Jurassic to Early Cretaceous peraluminous granitoids in the northeastern Hunan province (middle Yangtze region), South China: Geodynamic implications for the Paleo-Pacific subduction

Journal of Asian Earth Sciences (2016)

Wenbin Ji Wei Lin Michel Faure Yan Chen Yang Chu

Batholith

Petrogenesis

Fractional crystallization (geology)

Underplating

10.1016/j.jseaes.2016.07.005

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Citations (79)

Lithospheric reworking and thinning by cyclical continental extension: a synthesis of Cretaceous extensional domes in the South China Block

Comptes Rendus Géoscience (2023)

Yang Chu Tanjie Liu Wei Lin Lingtong Meng Zhentian Feng

Continents with cratonic cores can resist deformation, and thus survive billions of years in the geological record. Tectonic reworking is a significant process that weakens and destructs cratons, but our understanding of the process remains incomplete. In the South China Block, Mesozoic cyclical tectonics destructed a large portion of its cratonic lithosphere. Here, we synthesized the structural evolution of extensional domes and illustrated the process of lithospheric thinning. Unlike the previous rapid, one-cycle delamination model, we propose a new model that multicycle compression and extension progressively destructed the lithosphere, which reconciles both surface geology and deep process. Supplementary Materials: Supplementary material for this article is supplied as a separate file: Table-S1.xlsx Les continents dotés d’un noyau cratonique peuvent résister à la déformation et survivre ainsi des milliards d’années dans les archives géologiques. Le remaniement tectonique est un processus important qui affaiblit et détruit les cratons, mais notre compréhension de ce processus reste incomplète. Dans le bloc de Chine méridionale, la tectonique mésozoïque est représentée par des cycles d’e compression et d’extension. Elle a détruit une grande partie de la lithosphère cratonique. Cet article synthétise l’évolution structurale des dômes extensifs et illustre le processus d’amincissement de la lithosphère. Contrairement au modèle précédent de délamination rapide à un cycle, nous proposons ici un nouveau modèle selon lequel la compression et l’extension au cours de plusieurs cycles ont progressivement détruit la lithosphère. Ce modèle réconcilie à la fois la géologie de surface et les processus profonds. Compléments : Des compléments sont fournis pour cet article dans le fichier séparé : Table-S1.xlsx

Thinning

Extensional tectonics

Delamination

10.5802/crgeos.245

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Citations (2)

Multiple Emplacement and Exhumation History of the Late Mesozoic Dayunshan–Mufushan Batholith in Southeast China and Its Tectonic Significance: 1. Structural Analysis and Geochronological Constraints

Journal of Geophysical Research Solid Earth (2017)

Wenbin Ji Michel Faure Wei Lin Yan Chen Yang Chu

Abstract The South China Block (SCB) experienced a polyphase reworking by the Phanerozoic tectonothermal events. To better understand its Late Mesozoic tectonics, an integrated multidisciplinary investigation has been conducted on the Dayunshan–Mufushan composite batholith in the north‐central SCB. This batholith consists of two major intrusions that recorded distinct emplacement features. According to our structural analysis, two deformation events in relation to batholith emplacement and subsequent exhumation are identified. The early one (D 1 ) was observed mostly at the southern border of the batholith, characterized by a top‐to‐the‐SW ductile shearing in the early‐stage intrusion and along its contact zone. This deformation, chiefly associated with the pluton emplacement at ca. 150 Ma, was probably assisted by farfield compression from the northern Yangtze foreland belt. The second but main event (D 2 ) involved two phases: (1) ductile shearing (D 2a ) prominently expressed along the Dayunshan detachment fault at the western border of the batholith where the syntectonic late‐stage intrusion and minor metasedimentary basement in the footwall suffered mylonitization with top‐to‐the‐NW kinematics; and (2) subsequent brittle faulting (D 2b ) further exhumed the entire batholith that behaved as rift shoulder with half‐graben basins developed on its both sides. Geochronological constraints show that the crustal ductile extension occurred during 132–95 Ma. Such a Cretaceous NW–SE extensional tectonic regime, as indicated by the D 2 event, has been recognized in a vast area of East Asia. This tectonism was responsible not only for the destruction of the North China craton but also for the formation of the so‐called “southeast China basin and range tectonics.”

Batholith

Metamorphic core complex

10.1002/2017jb014597

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Citations (58)

Basal Décollement Splaying Induces Mid‐Crustal Tectonic Imbrication in an Intracontinental Orogen

Tectonics (2022)

Zhentian Feng Yang Chu Wei Wei Zhenhua Xue Guangyao Xin

Abstract Mid‐to‐lower crustal rock exhumation is common in orogenic belts, but the deformation process exposing these rocks remains debated. Distributed deformation in low viscous crust extruding mid‐to‐lower crustal rocks as channel flow and localized deformation along shear zones imbricating rigid blocks are two end‐members that account for crustal thickening and unroofing. At the northwest of the Early Paleozoic orogenic belt in the South China Block, the Jiuling Massif includes orogenic root rocks exhumed from deep crustal level. Their structural pattern and exhumation history can improve our understanding on how continental mid‐to‐lower crust is deformed, thickened, and finally transported to the surface. Structural analysis reveals that two major mid‐crustal ductile shear zones and their splays are developed at temperatures of ∼350°C–550°C. Anisotropy of magnetic susceptibility (AMS) shows that the Southern Jiuling Batholith has a modified AMS pattern by syn‐orogenic compression, suggesting a gradually deformed rigid block. Combining surface geological evidence and deep structures by gravity modeling, we find shear zones rooted in basal décollement incrementally stacked the rigid granitic blocks. Along strike, the major shear zones evolved differently with more splays at their eastern portions. Thus, tectonic imbrication can evolve to pervasive flow‐like deformation as shear zones continue to splay and form an anastomosed shear zone system. The complexed structures by splayed shear zones segmenting and imbricating small rigid blocks may correspond to the geophysically low‐velocity zone in the crust, so shear zone splaying is a linking mechanism between tectonic imbrication and viscous flow deformation of the crust.

Imbrication

Batholith

10.1029/2022tc007583

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Citations (4)

Volcanic-intrusive connections and crystal-melt segregation in the Dulan tilted crustal section: Insights from accessory mineral evolution

Chemical Geology (2024)

Bin Liu Leng Wu Changqian Ma Mengyu Zhang Zhenhua Xue

Section (typography)

10.1016/j.chemgeo.2024.122517

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Citations (1)

Mesozoic Crustal Thickening of the Longmenshan Belt (NE Tibet, China) by Imbrication of Basement Slices: Insights From Structural Analysis, Petrofabric and Magnetic Fabric Studies, and Gravity Modeling

Tectonics (2017)

Zhenhua Xue Guillaume Martelet Wei Lin Michel Faure Yan Chen

Abstract This work first presents field structural analysis, anisotropy of magnetic susceptibility (AMS) measurements, and kinematic and microstructural studies on the Neoproterozoic Pengguan complex located in the middle segment of the Longmenshan thrust belt (LMTB), NE Tibet. These investigations indicate that the Pengguan complex is a heterogeneous unit with a ductilely deformed NW domain and an undeformed SE domain, rather than a single homogeneous body as previously thought. The NW part of the Pengguan complex is constrained by top‐to‐the‐NW shearing along its NW boundary and top‐to‐the‐SE shearing along its SE boundary, where it imbricates and overrides the SE domain. Two orogen‐perpendicular gravity models not only support the imbricated shape of the Pengguan complex but also reveal an imbrication of high‐density material hidden below the Paleozoic rocks on the west of the LMTB. Regionally, this suggests a basement‐slice‐imbricated structure that developed along the margin of the Yangtze Block, as shown by the regional gravity anomaly map, together with the published nearby seismic profile and the distribution of orogen‐parallel Neoproterozoic complexes. Integrating the previously published ages of the NW normal faulting and of the SE directed thrusting, the locally fast exhumation rate, and the lithological characteristics of the sediments in the LMTB front, we interpret the basement‐slice‐imbricated structure as the result of southeastward thrusting of the basement slices during the Late Jurassic‐Early Cretaceous. This architecture makes a significant contribution to the crustal thickening of the LMTB during the Mesozoic, and therefore, the Cenozoic thickening of the Longmenshan belt might be less important than often suggested.

Imbrication

Basement

Lineation

10.1002/2017tc004754

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Citations (42)