Article
Geochemistry & Geophysics
Jessie L. Vermeer, Mark C. Quigley, Brendan G. Duffy, Robert M. Langridge, Jarg R. Pettinga
Summary: Through the study of the structure and kinematics of the Hope, Kelly, and Alpine faults in New Zealand, it is found that the slip rate of the Alpine fault transfers to the eastern dextral central Hope Fault via the Hope-Kelly fault system. The interactions among these faults within seismogenic depths control surface rupture geometries and kinematics, showcasing ongoing structural interactions in active faulting at the intersection.
Article
Geochemistry & Geophysics
Jun Ma, Mingming Wang, Guanghao Ha, Jinghao Lei, Bengang Zhou
Summary: The Yalahe Fault (YLHF) plays a significant role in the structural deformation and seismic hazards of the Kangding segment. By studying tectonic geomorphology, trench excavations, and radiocarbon dating, we have identified six recent paleoearthquake events along the YLHF and determined their recurrence patterns and characteristics. The YLHF follows a quasiperiodic recurrence model and exhibits kinematic characteristics of transtension. It also contributes to the slip rate of the Xianshuihe Fault Zone (XSHF).
Article
Geosciences, Multidisciplinary
H. Yang, S. Sellmann, M. Quigley
Summary: The Nullarbor Plain, characterized by its lack of seismic activity, shows signs of potential large earthquakes based on analysis of high-resolution digital elevation models. The maximum displacements are not related to the length of the fault but are associated with crust-scale electrical conductors. These conductors, penetrating from the crust to the uppermost mantle, indicate fluid-enhanced enrichment and suggest weakening of pre-existing faults and enhanced neotectonic faulting.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Andrian Batugin, Alexander Kobylkin, Konstantin Kolikov, Alexander Ivannikov, Valeria Musina, Evgeny Khotchenkov, Byambasuren Zunduijamts, Elmira Ertuganova, Daniil Krasnoshtanov
Summary: The hypothesis of the piston effect during mine gas migration caused by fault reactivation was studied through computer modeling, explaining the sudden appearance of mine gases on the earth surface in coal mining areas.
APPLIED SCIENCES-BASEL
(2023)
Article
Geosciences, Multidisciplinary
Ahmad Rashidi, Majid Nemati, Shahram Shafieibafti, Shahrokh Pourbeyranvand, Reza Derakhshani, Carla Braitenberg
Summary: Field evidence, seismicity, and geodetic data are combined to study the tectonic evolution in the northern domain of the Western and Central Alborz ranges. The geometric-kinematic characteristics of active fault planes are analyzed to assess seismic hazards. The study reveals the presence of three active segments with reverse mechanisms and left-lateral strike-slip components, acting as boundaries in the tectonic stress domains in the region. The spatial distribution of faulting supports the understanding of geodynamic processes.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geography, Physical
Umberto Lombardo, Christoph Gruetzner
Summary: The study reveals the presence of at least five active faults in the Bolivian Amazon foreland basin, capturing crustal tectonic activities. Tectonic block tilting occurred in the study area, with two main orthogonal faulting directions identified. The findings shed light on the seismic hazard of the region and highlight the underestimated risk of catastrophic river course changes due to sudden uplift.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geochemistry & Geophysics
Ming Chen, Chunhui Tao, Lars H. Ruepke, Yunlong Liu, Hanchuang Wang, Sibiao Liu
Summary: This study uses modeling to show that the activity of detachment faulting system is not solely controlled by temporal variations in magma flux, but is also influenced by lithospheric thickness. This finding is consistent with recent geophysical observations.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geosciences, Multidisciplinary
Andrew J. Moodie, Paola Passalacqua
Summary: In this study, different displacement events in various deltaic environments were modeled to observe how channelized connections with displaced areas can determine if distributary networks will reorganize. It was found that the magnitude of distributary network reorganization can be predicted by a ratio relating dimensions of faulting-induced subsidence and channel geometry. This ratio was applied to real-world deltas to assess hazards to deltaic-land building projects.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
Peng Guo, Zhujun Han, Shaopeng Dong, Zebin Mao, Nan Hu, Fan Gao, Jiani Li
Summary: The study revealed four recent surface-rupturing paleoearthquakes on the Jianshui fault in the southern segment of the Xiaojiang fault zone, with ages ranging from approximately 15370 to 145 years BP. The events show irregular occurrence, indicating possible kinematic characteristics influenced by surrounding tectonic activities.
Article
Engineering, Geological
Aikaterini Triantafyllaki, Dimitrios Loukidis, Panos Papanastasiou
Summary: Active tectonic faults pose a threat to the safety and longevity of offshore gas pipelines by inducing permanent ground actions. The movement of seismic faults deforms the pipeline and causes excessive strains, leading to buckling and rupture. This paper explores design options to enhance the capacity of partially embedded offshore pipelines to withstand fault displacement, using equations fitted to finite element simulations. The proposed equations can guide the preliminary design of future pipelines and assess the vulnerability of existing ones.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Chao Ma, Yufa Liu, Like An, Xing Yang, Shao Liu, Wei Zhang
Summary: Faults along the boundaries of active tectonic blocks are the main structures responsible for major earthquakes in mainland China. This study focuses on the Nanhe Fault and investigates its geometry, rupture behavior, and paleoseismic history. The findings suggest that the Nanhe Fault connects with the Anninghe Fault and has been active since the late Late Pleistocene. Three paleoseismic events were identified, and a comparative analysis with the Anninghe Fault indicates potential cascade rupture or triggered earthquakes between the two faults. Additionally, the Nanhe Fault participates in strain partitioning along the eastern boundary of the Sichuan-Yunnan Block.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Engineering, Civil
Frederic-Victor Donze, Alexandra Tsopela, Yves Guglielmi, Pierre Henry, Claude Gout
Summary: During fluid injection tests inside the Tournemire fault zone, limited fault displacement was observed, but permeability sharply increased as fluid pressure reached a threshold value. Numerical modeling showed that when fluid pressure outweighed the mechanical contribution of heterogeneities along fracture planes, permeability rapidly increased. These findings are important for understanding fault leakage in non-active fault zones.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Geochemistry & Geophysics
Shuofan Wang, Xiangfang Zeng, Min Xu, Yayun Zhang, Yong Zhou, Xing Wei, Xin Lin
Summary: The Taiwan Strait, located between Taiwan Island and the South China Craton, experienced a rare moderate earthquake in 2018. Through analyzing seismic data and geological structures, researchers were able to determine the characteristics of the earthquake and seismogenic structure in the region.
Article
Geosciences, Multidisciplinary
Shiqiang Xia, Changsong Lin, Xin Li, Xiaofeng Du, Hong Li
Summary: The fault activity, tectonic subsidence history, and geodynamics in Liaodong Bay were analyzed based on borehole information and seismic datasets. The results show that faults are intensely active, and their activity varies during different deposition stages. The tectonic subsidence history is closely related to fault activity.
GEOLOGICAL JOURNAL
(2022)
Article
Environmental Sciences
Peng Chen, Bing Yan, Yuan Liu
Summary: The study analyzed stream channels along the Altyn Tagh Fault in detail and found systematic deflection and/or offset, with offset amounts ranging from 7 meters to 72 kilometers showing a linear relationship between upstream length and offset amount. Additionally, river capture and abandonment were observed along the fault.
Article
Geosciences, Multidisciplinary
Chih-Tung Chen, Yu-Chang Chan, Ching-Hua Lo, Jacques Malavieille, Chia-Yu Lu, Jui-Ting Tang, Yuan-Hsi Lee
JOURNAL OF ASIAN EARTH SCIENCES
(2018)
Article
Geosciences, Multidisciplinary
Sean Kuanhsiang Chen, Yih-Min Wu, Yu-Chang Chan
GEOPHYSICAL RESEARCH LETTERS
(2018)
Article
Geochemistry & Geophysics
Chih-Tung Chen, Yu-Chang Chan, Olivier Beyssac, Chia-Yu Lu, Yue-Gau Chen, Jacques Malavieille, Steven B. Kidder, Hao-Cheng Sun
Article
Geosciences, Multidisciplinary
Thi-Hue Dinh, Yu-Chang Chan, Chung-Pai Chang, Chih-Tung Chen, Yi-Chun Hsu
Summary: The study provides insight into the deformation patterns and potential active movements of the Fansipan mountain range, suggesting a spatial variation in rock uplift patterns. It reveals different geological forms between the north and south regions, with normal faulting activity playing a crucial role in tectonic uplift. The kinematic pattern of alternating strike-slip and normal motions under the same extensional stress regime may effectively control recent tectonic movements in northern Vietnam.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2021)
Article
Environmental Sciences
Chiao-Yin Lu, Jyr-Ching Hu, Yu-Chang Chan, Yuan-Fong Su, Chih-Hsin Chang
Article
Environmental Sciences
Chiao-Yin Lu, Yu-Chang Chan, Jyr-Ching Hu, Chia-Han Tseng, Che-Hsin Liu, Chih-Hsin Chang
Summary: This study utilized the MTI technique to monitor a slow-moving landslide on the Huafan University campus, observing long-term gravity-induced deformation and seasonal surface fluctuations in phase with precipitation. The findings provide valuable information for possible landslide early warning systems in the future.
Article
Geosciences, Multidisciplinary
Thi-Hue Dinh, Yu-Chang Chan, Chih-Tung Chen
Summary: This study analyzes the tectonic deformations of the Fansipan and Tule mountain ranges in northern Vietnam using field observations and digital elevation model (DEM) data. The results suggest that the uplift of these mountain ranges is likely due to strike-slip and normal faulting, with extensional tectonics associated with isostatic rebound playing a role in maintaining their elevations over long periods.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geology
Chih-Tung Chen, Ching-Hua Lo, Pei-Ling Wang, Li-Hung Lin
Summary: Late brittle extension is a common feature in orogenic belts, and its relationship with crustal thickening, topography building, and rock exhumation is crucial in determining its role in orogenic development. By studying the structural evolution of Taiwan, it was found that the initiation of brittle tensile structures coincided with accelerated rock exhumation and molasse deposition, suggesting that syn-collisional brittle extension may play a significant role in both enhanced exhumation and orography formation.
Article
Geosciences, Multidisciplinary
Yun-Chieh Lo, Chih-Tung Chen, Ching-Hua Lo, Sun-Lin Chung, Meng-Wan Yeh
Summary: The Taiwan mountain belt is formed from the collision between the South China Sea and the Luzon forearc, playing a crucial role in the growth of continents. The ongoing incipient collision at the southern tip of Taiwan Island provides a unique opportunity to observe the transition from oceanic to continental subduction. The Shihmen Conglomerate, composed of coarse mafic pebbles, represents a significant change in sediment provenance and tectonic events.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Chi-Hsiu Pang, Tzu-Ruei Yang, Ying-Ju Chang, Shu-Hong Lin, Liang-Jian Shiau, Chih-Tung Chen, Chung-Pai Chang, Li Lo
Summary: This study reports the first official record of amber from the melange unit and Taiwan, found in the Lichi Melange in eastern Taiwan. The amber is composed of sesquiterpenes and triterpenoids and may have originated from dipterocarp trees that are not found in the paleobotanic record and current flora of Taiwan. Petrographic analysis suggests that the amber was deposited into the continental margin and allocated to Taiwan through arc-continental collision approximately 6-7 million years ago.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Chih-Cheng Chung, Chih-Tung Chen, Chia-Yu Lu
Summary: We analyzed deformation bands in a pyroclastics locality in eastern Taiwan and found that their characteristics and evolution are correlated with the properties of the host pyroclastic rocks. The frequency of deformation bands is influenced by the porosity and grain size of the host rocks, while the displacement and thickness of the deformation bands are inversely proportional to their frequency. The maximum core thickness of the deformation bands is affected by the sorting coefficient and average grain size of the host rocks.
JOURNAL OF STRUCTURAL GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Yun-Chieh Lo, Chih-Tung Chen, Ching-Hua Lo, Sun-Lin Chung
TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Kuo-Jen Chang, Yu-Chang Chan, Rou-Fei Chen, Yu-Chung Hsieh
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2018)