Zhigang Li

Sun Yat-sen University

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i-10 index

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Peizhen Zhang

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Chuang Sun

Jilin University

Weitao Wang

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Wenjun Zheng

Sun Yat-sen University

Dong Jia

China Academy of Engineering Physics

Yipeng Zhang

Sun Yat-sen University

Gege Hui

Sun Yat-sen University

Zhuxin Chen

Research Institute of Petroleum Exploration and Development

Jing Liu‐Zeng

China Earthquake Administration

Hongwei Yin

Nanjing University

Cooperative Institutions

Sun Yat-sen University

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)

China Earthquake Administration

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Chinese Academy of Sciences

Institute of Geology, China Earthquake Administration

Nanjing University

University of Chinese Academy of Sciences

Peking University

Ministry of Natural Resources

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Structural deformation and evolution of right-lateral strike-slip tectonics of the Liaohe western depression during the early Cenozoic

Journal of Asian Earth Sciences (2013)

Zhigang Li Dong Jia Wei Chen Yikun Zhang Maomao Wang

Anticline

Neogene

Thrust fault

Echelon formation

Paleogene

10.1016/j.jseaes.2013.08.002

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Citations (15)

Three-Dimensional Dynamic Visualization of Coastal Zones for Sea-land Integration

Journal of Coastal Research (2020)

Bo Ai YunHang Xia Zhigang Li Fanlin Yang Min Ji

Ai, B.; Xia, Y.; Li, Z.; Yang, F., and Ji, M., 2020. Three-dimensional dynamic visualization of coastal zones for sea-land integration. In: Zheng, C.W.; Wang, Q.; Zhan, C., and Yang, S.B. (eds.), Air-Sea Interaction and Coastal Environments of the Maritime and Polar Silk Roads. Journal of Coastal Research, Special Issue No. 99, pp. 85-91. Coconut Creek (Florida), ISSN 0749-0208.The three-dimensional visualization of coastal zones for sea-land integration faces difficulties such as multisource terrain data fusion, tidal dynamic changes, and sea surface simulation. This paper proposes a method to convert the depth reference of water depth data into the 1985 national elevation benchmarks, which integrates multisource sea-land terrain data by vertical datums, converts rectangular coordinates and establishes a digital elevation model for sea-land terrain integration. Based on the dynamic characteristics of the sea surface with tides, this paper calculates the tidal level of the nearshore tide station using numerical tidal harmonic analysis and a prediction model. The dynamic sea surface height field away from the mainland is established by inverse distance weighted spatial interpolation. The paper simulates the sea surface by Phillips spectrum analysis and fast Fourier transform and achieves dynamic effects for the sea surface by concave-convex mapping and wave mapping, enhancing the reality of dynamic sea surface expression. In addition, this paper designs and develops the Coastal Zone Terrain Three-Dimensional Dynamic Visualization System, which realizes functions such as sea-land integrated three-dimensional terrain roaming, sea surface simulation visualization and the automatic generation of instantaneous coastlines at any time.

Interpolation

Elevation (ballistics)

10.2112/si99-013.1

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Citations (1)

Seismogenic Fault Model for the 2021 Ms 6.4 Yangbi, China, Earthquake, Constraints from Multisource Data

Seismological Research Letters (2024)

Lianwen Wu Zhigang Li Chuang Sun Xiangming Dai Xiancan Wu

Abstract Deciphering a comprehensive 3D fault model for the regions with moderate-to-strong earthquakes is crucial for understanding earthquake triggering mechanisms and assessing future seismic hazards. On 21 May 2021, a massive Ms 6.4 earthquake occurred in Yangbi, Dali City, China, near the northern Red River fault zone. Despite numerous studies conducted over the past two years, the seismogenic fault of this earthquake remains a topic of controversy. In this article, we refine the workflow for 3D construction of fault surfaces from Riesner et al. (2017) and used it for the Yangbi earthquake. We constructed a seismogenic fault model for the Yangbi earthquake and Caoping fault from the collected multisource data. One utilizes a combination of focal mechanisms and relocated hypocenters, whereas the other combines geological and geophysical data from the study area. Upon analyzing these two fault models and the relocated hypocenter data, we propose that the seismogenic fault in the Yangbi earthquake is an undiscovered blind fault or a secondary blind fault of the Weixi–Qiaohou fault, rather than the surface-emerging Caoping fault.

Hypocenter

Earthquake prediction

10.1785/0220230412

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Three-Dimensional Community Active Faults Models of CSES

Renqi Lu Maomao Wang Zhigang Li Jing Liu‐Zeng

Accurate three-dimensional (3-D) geometry of active fault in the subsurface is vital to decoding the rupture process, kinematic behavior, and dynamical mechanism of earthquakes. Since the geometrical complexity appears to be an inherent characteristic of the fault structure, many studies have been conducted to explore the impact of the fault geometry on rupture dynamic processes. Scientists of the Southern California Earthquake Center have contributed to the development of a community-based three-dimensional fault model (CFM) to study active faulting and earthquake phenomena and to assess probabilistic seismic hazard, as well as to predict strong ground motions. It is important to construct the CFM in the CSES, though a difficult task giving the area large in extent and with complex tectonic background. Mapping 3-D representations of active faults is an important component in developing various projects on the CSES. In this study, we illustrate several typical active faults (eg. Xianshuihe fault, Longmenshan fault, Anninghe-Xiaojiang-Zemuhe faults, and Red River fault), and introduce the 3-D modeling methods and processes. Our results and the 3-D CFM could effectively support the scientific investigations of CSES in China.

10.1007/978-981-16-8607-8_5

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Controls of mantle subduction on crustal-level architecture of intraplate orogens, insights from sandbox modeling

Earth and Planetary Science Letters (2022)

Chuang Sun Zhigang Li Andrew V. Zuza Wenjun Zheng Dong Jia

Subduction of mantle lithosphere can initiate in the continental interior and acts as an important mechanism for intraplate orogeny. However, the associated kinematic response in the upper crust is still poorly resolved, hindering identification and investigation of mantle subduction during intraplate orogeny. Here we conducted sandbox experiments incorporating mantle-subduction-type and traditional indentation-type convergence to explore their difference in crustal-level orogenic architecture and deformation kinematics. We demonstrate that mantle-subduction-type convergence enhances orogen expansion above the subducting plate, whereas indentation-type convergence promotes deformation propagation toward the overriding plate. Such contrast leads to systematic variations in deformation sequence, structural style, and the first-order orogen geometry. We also show that changes of convergence mode leave distinct structural relics. Out-of-sequence faulting occurs when indentation-type convergence replaces the mantle-subduction-type mode. Conversely, the overprinting of mantle subduction on an earlier indentation mode triggers immediate in-sequence, foreland-propagating thrusting. Additionally, the influence of mantle-subduction-type convergence concentrates within the subducting plate when under a combined convergence involving opposite-direction indentation and mantle-subduction. This creates a special pattern of deformation localization comparable to the distribution of present-day seismicity and topography observed in the active Qilian Shan fold-thrust (northern Tibetan Plateau), confirming a bi-directional compression state during its recent evolution. Our modeling results can provide insights into the geodynamics of other intraplate orogens.

Orogeny

10.1016/j.epsl.2022.117476

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Citations (9)

Late Quaternary slip rate of the Aksay segment and its rapidly decreasing gradient along the Altyn Tagh fault

Geosphere (2020)

Jinrui Liu Zhikun Ren Wenjun Zheng Wei Min Zhigang Li

Abstract Constraining the fault slip rate on a fault can reveal the strain accumulation and partitioning pattern. The Aksay segment, the eastern segment of the Altyn Tagh fault, as the starting area where the slip rate of the Altyn Tagh fault decreases, is a strain partitioning zone. The spatial and temporal distribution of its fault slip rate is of great significance to clarify the strain-partitioning pattern of the eastern Altyn Tagh fault. In this study, we determined the slip rates at four sites along the Aksay segment. The results demonstrated that the slip rate decreases dramatically, with an overwhelmingly high slip gradient of ∼9.8 mm/yr/100 km (a 9.8 mm/yr reduction of slip rate occurs over a distance of 100 km) within a distance of ∼50 km. The slip rate gradient along strike at the Aksay segment is four times that of the Subei segment to the eastward termination of the Altyn Tagh fault. Our results indicate that the slip rate gradient along the Altyn Tagh fault is not uniform and decreases eastward with variable slip rate gradients on different segments, resulting in the uplift of the mountains oblique to the Altyn Tagh fault.

10.1130/ges02250.1

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Citations (28)

The Effects of Fault Geometry and Kinematic Parameters on 3D Fold Morphology: Insights From 3D Geometric Models and Comparison With the Dushanzi Anticline, China

Tectonics (2020)

Zhigang Li Wei Chen Dong Jia Chuang Sun Wenjun Zheng

Abstract Precise knowledge of the geometry of faults and folds at depth is important for tectonics, economic geology, and seismic hazards. However, the geometry and kinematics of faults and the aspects controlling the coevolution of folds are difficult to constrain without 3D seismic data. We perform a series of 3D forward geometric simulations using a pseudo‐3D trishear fault‐propagation folding algorithm to investigate the effects of six fault geometry and kinematic parameters on the 3D fold morphology. We conclude that the ramp angle and the shortening/fault length ratio are the primary controlling factors of the whole 3D‐fold morphology, and the displacement gradient angle only affects the along‐strike deformation. We then present a quantitative interpretation of the Dushanzi anticline and propose that the anticline formed by trishear fault‐propagation folding with 5.5 km of total shortening. A consistency between the 3D structural and geometric models demonstrates the validity of the structural interpretations, suggesting that the anticline is controlled by a 40‐km‐long fault and has increased in amplitude over time with a shortening rate of ~2 mm/year since the Quaternary. The consistency highlights the spatial relationship between the fault geometry, the along‐strike shortening distribution, and the 3D‐fold morphology. These novel insights from the Dushanzi anticline can be applied to the identification of a structural trap with a volume of 68.6 km 3 .

Anticline

10.1029/2019tc005713

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Citations (16)

Oligocene–Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China

Geological Society of America Bulletin (2023)

Yipeng Zhang Peizhen Zhang Richard O. Lease Renjie Zhou Yuejun Wang

Growth of the Tibetan Plateau, Earth’s broadest and highest elevation collisional system, shapes orographic barriers, reorganizes drainage networks, and influences surface erosion and sediment delivery, whose changes in space and provenance feed back to intracontinental tectonic processes. Studies of interior basins within the northern Tibetan Plateau provide new sediment accumulation, provenance, paleodrainage, and deformation timing data that enable a reconstruction of the far-field tectono-geomorphic evolution of the rising Tibetan Plateau. Along the northern plateau margin, topographic growth in the West Qinling Belt is inferred to have initiated in the Eocene, nearly coeval with the India-Asia collision, as well as in the late Miocene. However, geological knowledge about the intervening period remains at present enigmatic, and the kinematics and dynamics are uncertain. This study presents a multidisciplinary data set from the intermontane Anhua-Huicheng Basin (AHB; Gansu Province, China) to fill this gap. Magnetostratigraphic dating, regional mapping, and sedimentological analysis imply that contractional deformation and thrust-top basin systems formed within the West Qinling Belt in the Oligocene (not later than ca. 24 Ma). A combination of observations including paleocurrent changes, detrital zircon U-Pb age variations, and appearance of growth strata along the Anhua-Huicheng Basin reveal the rapid uplift of the West Qinling Belt at ca. 15 Ma. Sedimentation in the intermontane basins ended after the late Miocene (ca. 8 Ma), when the region experienced intrabasinal deformation, uplift, and erosion with the establishment of an external drainage system. Since the late Miocene, the growth of the West Qinling Belt reached a climax with the lack of substantial contractional deformation in Cenozoic sequences heralding the onset of the modern kinematic regime and attainment of high elevation. Observed transitions in the tectonostratigraphy and paleodrainage define different phases of deformation and plateau-wide shifts in stress reorganization, which led to the northward growth and later lateral expansion of the Tibetan Plateau.

Paleocurrent

Magnetostratigraphy

10.1130/b36722.1

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Citations (5)

Climatically driven formation of the Tangxian planation surface in North China: An example from northwestern Zhongtiao Shan of the Shanxi Graben System

Lithosphere (2018)

Jianguo Xiong Youli Li Wenjun Zheng Peizhen Zhang Jinghao Lei

The development of planation surfaces requires stable tectonic and climatic conditions. However, it is difficult to discuss in detail how tectonic movement and/or climate change affects erosion, deposition, and uplift associated with the development, formation, and disintegration of planation surface. This article presents a case study on the development and formation of the Tangxian planation surface (TXPS) by establishing the magnetostratigraphy of one piedmont deposition section related to planation, and combining the depositional sequence overlying TXPS and basin sediments. Further, we discuss the role of tectonics and climate change in the geomorphic evolution of the TXPS during the late Cenozoic and revise the final formation age to be ca. 3.1 Ma by the relative deposition process. The vertical rates of the main fault constrained by different geomorphic surfaces and stable deposition in the basin show stable and moderate tectonic activity in the study area since the Pliocene, and a series of sedimentary records reveal that the climate in North China was stably warm-humid from the late Miocene to early Pliocene. Stable tectonic activity and stable climate were important bases for pediment development; however, abrupt climatic changes during the late Pliocene might be the main driving force of the final formation of the TXPS in North China.

Tectonic uplift

Deposition

Magnetostratigraphy

10.1130/l720.1

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Citations (15)

Mud volcanoes influences on the seismicity behaviors indicated from z and b value

Gege Hui Zhigang Li Chuang Sun Yipeng Zhang Pengcheng Wang

Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Geophysical Research Letters. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Mud volcanoes influences on the seismicity behaviors indicated from z and b valueAuthorsGegeHuiiDGang ZhiLiChuangSuniDYipengZhangPengchengWangPeizhenZhangSee all authors Gege HuiiDCorresponding Author• Submitting AuthorSun Yat-Sen UniversityiDhttps://orcid.org/0000-0002-4843-4217view email addressThe email was not providedcopy email addressGang Zhi LiSchool of Earth Sciences and Engineering, Sun Yat-sen Universityview email addressThe email was not providedcopy email addressChuang SuniDSchool of Earth Sciences and Engineering, Sun Yat-sen UniversityiDhttps://orcid.org/0000-0002-0716-4548view email addressThe email was not providedcopy email addressYipeng ZhangSchool of Earth Science and Geological EngineeringSun Yat-Sen Universityview email addressThe email was not providedcopy email addressPengcheng WangOcean University of Chinaview email addressThe email was not providedcopy email addressPeizhen ZhangSchool of Earth Sciences and Engineering, Sun Yat-sen Universityview email addressThe email was not providedcopy email address

Preprint

10.1002/essoar.10505608.1

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