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The Long-Lasting Exhumation History of the Ötztal-Stubai Complex (Eastern European Alps): New Constraints from Zircon (U–Th)/He Age-Elevation Profiles and Thermokinematic Modeling Lithosphere (IF 2.4) Pub Date : 2024-01-12 Kyra Hölzer, Reinhard Wolff, Ralf Hetzel, István Dunkl
The Eastern European Alps formed during two orogenic cycles, which took place in the Cretaceous and Cenozoic, respectively. In the Ötztal-Stubai Complex—a thrust sheet of Variscan basement and Permo-Mesozoic cover rocks—the record of the first (Eoalpine) orogeny is well preserved because during the second (Alpine) orogeny, the complex remained largely undeformed. Here, new zircon (U–Th)/He (ZHe) ages
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Whole-Rock and Apatite Geochemistry of Late Triassic Plutonic Rocks in the Eastern Songpan-Ganzi Orogenic Belt: Petrogenesis and Implications for Tectonic Evolution Lithosphere (IF 2.4) Pub Date : 2024-01-12 Haoyu Yan, Zhiqin Xu, Guangwei Li, Bihai Zheng, Jianguo Gao, Xiaoping Long
To constrain the late Triassic tectonic evolution of the Songpan-Ganzi orogenic belt, we present new whole-rock and in situ apatite geochemistry for plutonic rocks in its eastern margin. The Taiyanghe pluton can be classified into two rock types: dioritic and granitic rocks. The former exhibits low SiO2 and MgO contents but high Al2O3, Th, LREE contents, and Th/Yb and Th/Nb ratios, as well as low Ba/La
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Carbon Isotopic Behavior During Hydrocarbon Expulsion in Semiclosed Hydrous Pyrolysis of Type I and Type II Saline Lacustrine Source Rocks in the Jianghan Basin, Central China Lithosphere (IF 2.4) Pub Date : 2024-01-12 Shaojie Li, Lunju Zheng, Xiaowen Guo, Yuanjia Han
Organic carbon isotopic analysis is a significant approach for oil-source correlation, yet organic carbon isotopic behavior during oil expulsion from saline lacustrine source rocks is not well constrained, and this hinders its wide application for fingerprinting oils generated by saline lacustrine source rock. To resolve this puzzle, semiclosed hydrous pyrolysis was conducted on typical saline lacustrine
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Oil Production Rate Forecasting by SA-LSTM Model in Tight Reservoirs Lithosphere (IF 2.4) Pub Date : 2024-01-12 Denghui He, Yaguang Qu, Guanglong Sheng, Bin Wang, Xu Yan, Zhen Tao, Meng Lei
The accurate forecasting of oil field production rate is a crucial indicator for each oil field’s successful development, but due to the complicated reservoir conditions and unknown underground environment, the high accuracy of production rate forecasting is a popular challenge. To find a low time consumption and high accuracy method for forecasting production rate, the current paper proposes a hybrid
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Late Cenozoic Cooling History of the Xigaze Fore-Arc Basin along the Yarlung–Zangbo Suture Zone (Southern Tibet): New Insights from Low-Temperature Thermochronology Lithosphere (IF 2.4) Pub Date : 2024-01-12 Shida Song, Zhiyuan He, Wenbo Su, Linglin Zhong, Kanghui Zhong, Stijn Glorie, Yifan Song, Johan De Grave
The Tibetan Plateau is currently the widest and highest elevation orogenic plateau on Earth. It formed as a response to the Cenozoic and is still ongoing collision between the Indian and Eurasian plates. The Xigaze fore-arc basin distributed along the Indus–Yarlung suture zone in southern Tibet preserves important information related to the late Cenozoic tectonic and topographic evolution of the plateau
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Petrogenesis and Tectonic Implication of Jurassic Granites in Central Guangdong, SE China: Constraints from Zircon U-Pb-Hf-O and Whole-Rock Geochemical and Sr-Nd Isotopic Data Lithosphere (IF 2.4) Pub Date : 2024-01-12 Zhiguang Lai, Yongxin Xu, Chunbo Xin, Xuewen Luo
The origin and tectonic regime responsible for the inland Jurassic granites in Southeast (SE) China remain controversial. This study presents zircon secondary ion mass spectrometry (SIMS) U-Pb ages, in situ zircon Hf-O isotopes, and whole-rock geochemical and Sr-Nd isotopic data for the Fogang and Xinxing Batholiths in central Guangdong. Mineralogical and geochemical features indicate that these granites
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Stochastic Reconstruction of 3D Heterogeneous Microstructure Using a Column-Oriented Multiple-Point Statistics Program Lithosphere (IF 2.4) Pub Date : 2024-01-12 Chen Zuo, Chen Guo, Shi Dong, Longhai Yang, Haoyue Zhang
Three-dimensional (3D) microstructure reconstruction is a key approach to exploring the relationship between pore characteristics and physical properties. Viewing the training image as a prior model, multiple-point statistics (MPS) focus on reproducing spatial patterns in the simulation grid. However, it is challenging to efficiently generate 3D nonstationary models with varying microstructures. In
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Production Dynamic Characteristic of Fractured Wells in Multilayer Reservoirs Considering the Effect of Non-Uniform Flux Distribution Lithosphere (IF 2.4) Pub Date : 2024-01-12 Yanzhong Liang, Bailu Teng, Wanjing Luo
Hydraulic fracturing stimulation, which improves matrix permeability and reduces production costs, has been extensively used in the exploitation of multilayer reservoirs. However, little research on the production dynamic characteristics of vertically fractured wells in stratified reservoirs has been done in the literature. The influence of flux variation along the fracture on the pressure transient
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Study of Road Performance and Curing Mechanism of Coal Gangue by Curing Agent Lithosphere (IF 2.4) Pub Date : 2024-01-12 Zhe Ren, Rui Zhang, Jian Zhang, Qiang Gao, Chuanxiao Liu, Yingying Wan, Jianjun Liu, Qingliang Hu, Chengbin Ren
Coal gangue is a type of rock waste product with dark gray color during coal mining and washing. The curing agent stabilizes soils by improving their physico-mechanical properties, allowing the soils to be reused in engineering as the subgrade fill. This study investigates the impact of SAHP curing agent on road performance parameters of coal gangue. The results showed that the road performance parameters
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Chronological, Petrogenetic, and Tectonic Significance of Paleoproterozoic Continental Crust within the North China Craton during the Global Tectono-Magmatic Lull Lithosphere (IF 2.4) Pub Date : 2024-01-12 Heng Liu, Lei Liu, Dexian Zhang, Inkyeong Moon, M. Santosh, Yanyan Zhou, Tianyang Hu, Shisheng Kang
The 2.45–2.20 Ga period during the early Paleoproterozoic era is considered to have witnessed a global “Tectono-Magmatic Lull (TML)” and thus marks a relatively quiescent period. Our study unveils a 2.45–2.20 Ga magmatic suite from the Xiong’ershan area in the southern North China Craton, offering some key constraints on localized active tectonics during the TML. Zircon U-Pb dating shows Paleoproterozoic
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Study of the Effect of Drying and Wetting Cycles and Water Content on the Shear Characteristics of Tailing Sands Lithosphere (IF 2.4) Pub Date : 2024-01-12 Yakun Tian, Zhijun Zhang, Min Wang, Lingling Wu, Lin Hu, Rong Gui
The mechanical characteristics of tailing sands have an important impact on the safety and stability of the tailing dams. Fully understanding the effect of drying and wetting cycles (DWC) and water content on the characteristics of tailing sands is urgently needed. In this study, direct shear tests were first carried out to analyze the effect of DWC and water content on the macroscopic mechanical characteristics
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Lithospheric Conductivity Structure in the Middle Segment of the Jiangnan Orogenic Belt: Insights into Neoproterozoic Tectonic–Magmatic Processes Lithosphere (IF 2.4) Pub Date : 2024-01-12 Jiayong Yan, Hui Chen, Juzhi Deng, Hui Yu, Yuexin You, Yidan Wen, Min Feng
The Jiangnan Orogenic Belt (JOB) evolved from the Yangtze and Cathaysia blocks through multi-stage oceanic-continental subduction, collisional orogeny, and intracontinental deformation, which is an important region to study the formation and evolution of the South China Continent (SCC). Magnetotelluric soundings were collected along a 520-km-long northwest (NW)-trending profile across the middle segment
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Controls of Multi-Scale Fractures in Tight Sandstones: A Case Study in the Second Member of Xujiahe Formation in Xinchang Area, Western Sichuan Depression Lithosphere (IF 2.4) Pub Date : 2024-01-12 Junwei Zhao, Yingtao Yang, Gongyang Chen, Xiaoli Zheng, Senlin Yin, Lei Tian
Different scales of fractures affect the reservoir quality in tight sandstone. There are more studies on macroscopic tectonic fractures but less on bedding fractures and microfractures. The control factors of multi-scale fractures are unclear. In this paper, we analyzed the types and controls of fractures in the second member of the Xinchang region in Western Sichuan. We use core and outcrops observations
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Influence of the Advance Jacked Pipe on the Jacking Force of the Subsequent Pipe Based on Pipe–Soil Full Contact Model Lithosphere (IF 2.4) Pub Date : 2024-01-12 Yu Zhang, Xu Zhao, Fei Guo, Lianjin Tao, Jun Liu, Weizhang Liao, Lei Tan, Xiaohui Yang
In pipe jacking engineering, accurate prediction of jacking force is the key to pipe jacking design. Based on a project of the Beijing Daxing Airport Line, the influence of the advance jacked pipes on the jacking force of the subsequent pipe is carried out in the present work. First, the verified numerical model of practical engineering was established, and the jacking force and radial stress of different
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Effect of Multiple Factors for the Roadway Excavation Process Stability in FLAC3D Lithosphere (IF 2.4) Pub Date : 2024-01-12 Li Danli, Dai Bing, Zhang Lei
Appropriate simulation set parameters are the precondition to obtain accurate results; while the simulation results are affected by multiple factors, it is thus crucial to investigate the sensibility of different factors. This paper first analyses the application situation of numerical simulation software in the field of geotechnical engineering and finds that Fast Lagrangian analysis of continua in
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Petrogenesis of the Early Paleozoic Dioritic–Granitic Magmatism in the Eastern North Qilian Orogen, NW China: Implications for Tethyan Tectonic Evolution Lithosphere (IF 2.4) Pub Date : 2024-01-12 Fei Xue, Fan Yang, Weidong Ren, M. Santosh, Zesheng Qian, Yin Huang, Zijian Tan
The North Qilian Orogen witnessed the opening, subduction, and closure of the Proto-Tethys Qilian Ocean and the post-subduction of multiple exhumation events from Late Neoproterozoic to Early Paleozoic. The Early Paleozoic dioritic–granitic magmatic suites, prominently exposed in the eastern North Qilian Orogen, offer valuable insights into the evolution of the Proto-Tethys Ocean. However, their petrogenesis
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Study on Shear Slip Characteristics of Sandstone Plane Joints under Normal Dynamic Load Disturbance Lithosphere (IF 2.4) Pub Date : 2024-01-12 Kangyu Wang, Caiping Lu, Yang Liu, Caijun Shao, Jian Zhou, Zhaowei Zhan
Rock joints are susceptible to slip instability due to dynamic load disturbances such as blasting, earthquakes, and fracturation. A series of direct shear tests under the dynamic load were conducted on sandstone plane joints using the RDS-200xl. The work investigated the effects of normal static loads and normal dynamic-load frequencies and amplitudes on plane joints. Besides, the following items were
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Deep Subsurface Pseudo-Lithostratigraphic Modeling Based on Three-Dimensional Convolutional Neural Network (3D CNN) Using Inversed Geophysical Properties and Shallow Subsurface Geological Model Lithosphere (IF 2.4) Pub Date : 2024-01-12 Baoyi Zhang, Zhanghao Xu, Xiuzong Wei, Lei Song, Syed Yasir Ali Shah, Umair Khan, Linze Du, Xuefeng Li
Lithostratigraphic modeling holds a vital role in mineral resource exploration and geological studies. In this study, we introduce a novel approach for automating pseudo-lithostratigraphic modeling in the deep subsurface, leveraging inversed geophysical properties. We propose a three-dimensional convolutional neural network with adaptive moment estimation (3D Adam-CNN) to achieve this objective. Our
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Investigating the Mechanism of Strong Roof Weighting and Support Resistance Near Main Withdrawal Roadway in Large-Height Mining Face Lithosphere (IF 2.4) Pub Date : 2024-01-12 Junwu Du, Qingxiang Huang
Aiming at investigating the strong roof weighting when the large height mining face is nearing the main withdrawal roadway, the 52,304 working face (WF) nearly through the main withdrawal roadway mining in a colliery of Shendong coalfield was taken as the research background. The ground pressure, roof structure, and superposition effect of stress in the last mining stage were studied by field measurement
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Compressive Fracture Behavior and Acoustic Emission Characteristics of Sandstone under Constant Crack Water Pressure Lithosphere (IF 2.4) Pub Date : 2024-01-12 Jiancheng Huang, Yong Luo, Chengzhi Pu, Song Luo, Xuefeng Si
Engineering rock containing flaws or defects under a large water source is frequently subject to the couple influence of constant crack water pressure and geostress. To investigate the fracture behavior of precracked rock under hydromechanical coupling with constant crack water pressure, compression tests were conducted on red sandstone specimens containing a single crack of different angles using
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Numerical Study on Characteristics of Stick-Slip Instability of Coal-Rock Parting-Coal Structure under Lateral Unloading Lithosphere (IF 2.4) Pub Date : 2024-01-12 Heng Zhang, Guang-Jian Liu, Xian-Jun Ji, Wen-Hao Cao, Ya-Wei Zhu, Sher Bacha
Unloading excavation can increase the possibility of rock burst, especially for coal seam with rock parting. In order to explore the evolution process of rock burst under lateral unloading, the combination of in situ measures and numerical experiments is used to study. The following four points were addressed: (1) the coal seam with rock parting easily causes the stick-slip and instability along the
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Influence of Lithology on the Characteristics of Wave Propagation and Dynamic Response in Rocky Slope Sites Subject to Blasting Load Via the Discrete Element Method Lithosphere (IF 2.4) Pub Date : 2024-01-12 Danqing Song, Xuerui Quan, Zhuo chen, Dakai Xu, Chun Liu, Xiaoli Liu, Enzhi Wang
To investigate the dynamic response and attenuation law of rock slope sites subjected to blasting, three lithological numerical models, including slate (hard rock), tuff (relatively soft rock), and shale (soft rock), are established by using MatDEM. By analyzing the wave field, velocity, and acceleration response of the models and their Fourier spectrum, combined with stress and energy analysis, their
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Effects of Stress on Transport Properties in Fractured Porous Rocks Lithosphere (IF 2.4) Pub Date : 2024-01-12 Jing Ba, Jinyi Min, Lin Zhang, José M. Carcione
The nonlinear characteristics of the rock transport properties (permeability and electrical conductivity in this study) as a function of stress are closely related to the geometry of the pore space, which consists of stiff pores, microcracks, or microfractures. We consider two behaviors of the pore space, one linear and the other exponential, related to the stiff pores and microfractures, respectively
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Influence of Hydraulic Conditions on Seepage Characteristics of Loose Sandstone Lithosphere (IF 2.4) Pub Date : 2024-01-12 Mingtao Jia, Quan Jiang, Qi Xu, Xuebin Su
To investigate the impact of hydraulic conditions on the seepage characteristics of loose sandstone, this study employed optimized methods to prepare loose sandstone samples. Subsequently, seepage experiments were conducted under different injection pressures, flow rates, and flow volumes. The permeability, porosity, particle size distribution, and other parameters of the rock samples were obtained
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Gravity-Seismic Joint Inversion of Lithospheric Density Structure in the Qiongdongnan Basin, Northwest South China Sea Lithosphere (IF 2.4) Pub Date : 2024-01-12 Chaoyang Li, Wei Gong, Lihong Zhao, Zhonghua Li, Pengyao Zhi, Jiayu Ge
Qiongdongnan Basin (QDNB), located at the northwestern corner of the South China Sea (SCS), is a key juncture between the extensional tectonic regime in the northern continental margin and the shear tectonic regime in the western continental margin. Analyzing the crustal density structure and tracking the thermodynamic controlling factors are effective approaches to reveal the nonuniform breakup process
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Experimental and Numerical Investigation of Rock Failure Process under Hydromechanical Coupling Action Lithosphere (IF 2.4) Pub Date : 2024-01-12 Zeqi Zhu, Xiancheng Mei, Jianhe Li, Qian Sheng
In order to study the initiation mechanism of rocks under hydromechanical coupling, hydromechanical coupling triaxial tests and acoustic emission tests were carried out on basalt in the Xiluodu hydropower station dam site area in southwestern China. The test results indicate that the basalt displays typical hard brittle behavior, and its peak strength increases as confining pressure rises. Conversely
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Late Oligocene to Early Pliocene Exhumation and Structural Development in the Western Himalaya, Northern Pakistan: Implications for the Cenozoic Metamorphic Overprint Lithosphere (IF 2.4) Pub Date : 2024-01-12 Irum Irum, Humaad Ghani, Edward R. Sobel, Gerold Zeilinger, Uwe Altenberger
New middle Miocene to Pliocene (~14–3 Ma) apatite fission track (AFT) cooling ages combined with published K–Ar/Ar–Ar and zircon fission track (ZFT) ages from the Hazara and Swat regions of Pakistan are used to explain the Oligocene to Pliocene structural evolution in the Western Himalaya. The structural model explains the distribution of K–Ar/Ar–Ar ages in three distinct age groups (Proterozoic, Paleozoic-Mesozoic
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Asymmetrical Microfracture Density Across an Active Thrust Fault: Evidence from the Longmen Shan Fault, Eastern Tibet Lithosphere (IF 2.4) Pub Date : 2024-01-12 Hu Wang, Peisheng Luo, Yi Liang, Dongming Li, Kaijin Li, Lin Deng, Lichun Chen
Microfracture density in fault damage zones can reflect spatial variability that decays in intensity as a function of distance from the fault, which is crucial in understanding the mechanical, seismological, and fluid-flow properties of the fault system. However, few studies explored the characteristics of fracture density between the two sides of active dip-slip faults due to rare field observations
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The Late Cambrian to Neogene Evolution of the Khanom Core Complex (Peninsular Thailand) Lithosphere (IF 2.4) Pub Date : 2024-01-12 Urs S. Klötzli, Bernhard Neugschwentner, Jolanta Burda, Pitsanupong Kanjanapayont, Qiu-Li Li, Yu Liu, Patrik Konečný, Punya Charusiri
The Khanom Core Complex in Peninsular Thailand is a part of the crystalline basement of Sundaland and plays a key role in our understanding of the evolution of Thailand and SE Asia. The complex comprises ortho- and paragneisses, schists, meta-volcanics, subordinate calcsilicate rocks, and postkinematic granitoids. New petrochronological data reveal that the sedimentation and metamorphism of the paragneiss
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Geochronological and Geochemical Constraints on the Magmatic Evolution of the Dun Mountain Ophiolite Belt, New Zealand Lithosphere (IF 2.4) Pub Date : 2024-01-12 Daniel Patias, Renjie Zhou, Jonathan C. Aitchison
New whole-rock major and trace element geochemical, zircon U-Pb geochronological, and Hf isotopic data from gabbroic rocks in New Zealand’s mid-Permian Dun Mountain ophiolite belt (DMO) provide insight into the evolution of subduction systems and early stages of intraoceanic arc development. Fe-oxide-bearing gabbros yielded high εHf(t) values (+10.3 to +13) and zircon U-Pb ages of 271.6 ± 0.6 Ma. In
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On the Influence of Grain Size Compared with Other Internal Factors Affecting the Permeability of Granular Porous Media: Redefining the Permeability Units Lithosphere (IF 2.4) Pub Date : 2024-01-12 Jesús Díaz-Curiel, Bárbara Biosca, Lucía Arévalo-Lomas, David Paredes-Palacios, María J. Miguel
This study first reviews the influence of grain size on the permeability of porous granular media in comparison to other factors, especially the sorting of grain size distribution, in order to improve the physical knowledge of permeability. The aim of this research is to counter the widespread misconception that the characteristics of water flow in granular porous media can be associated exclusively
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Mesozoic Thermo-Tectonic Evolution of the Western Altai Orogenic Belt (NW China): Insights from Low-Temperature Thermochronology Lithosphere (IF 2.4) Pub Date : 2023-07-17 Mingxuan Wu, Jiyuan Yin, Zhiyuan He, Wenjiao Xiao, Yannan Wang, Wen Chen, Yamei Wang, Jingbo Sun, Dapeng Li , Yun Meng
The Meso-Cenozoic tectonic activities of the Central Asian Orogenic Belt (CAOB) played an important role in controlling the present-day topography of Central Asia. The Altai orogenic belt is a key component in the southern CAOB; so far, there is still a lack of sufficient constraints on the time and mechanism of its tectonic reactivation since the Mesozoic. In this contribution, we present new zircon
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Construction and Application of “Active Prediction-Passive Warning” Joint Impact Ground Pressure Resilience Prevention System: Take the Kuan Gou Coal Mine as an Example Lithosphere (IF 2.4) Pub Date : 2023-01-11 Jiantao Cao, Shuai Zhang, Huicong Xu, Wei Li, Jindong Wang, Shaofeng Wang
With the increasing depth and intensity of coal mining, the impact on ground pressure has become one of the main disasters facing mining, seriously threatening mine safety. Introducing the concept of toughness urban design, building a joint toughness prevention and control system based on active prediction and analysis of the impact pressure risk at the back mining face according to the geological
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Tectonic Factors Restricting Differences among Layers in Microstructure of Ultradeep Clastic Rock Reservoir: A Case Study on Cretaceous Bashijiqike Formation in Kuqa Depression Lithosphere (IF 2.4) Pub Date : 2023-01-07 Miaomiao Su, Denglin Han, Ronghu Zhang, Qinglu Zeng, Zhenzhen Lin, Chenchen Wang, Jean Borgomano
The Cretaceous Bashijiqike Formation in the Kelasu structural belt of Kuqa Depression is an ultradeep reservoir with burial depth of more than 6 km. Due to the influence of strong thrust nappe from the South Tianshan in the north, the burial depth gradually deepened from north to south in the Kelasu tectonic belt. With the increase of the burial depth, the influence of tectonic compression relatively
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Phase Equilibria Evidence for Intermediate P/T Metamorphism in the Nashoba Terrane and Implications for Acadian Tectonics in Ganderia Lithosphere (IF 2.4) Pub Date : 2023-01-09 Jannitta T. Yao, Adrian E. Castro, Nicolas M. Roberts, Oliver M. Wolfe, Isabella M. Brunet, Dylan A. Vasey
The bedrock exposed in the Nashoba terrane of east-central Massachusetts records a complex history of deformation and metamorphism associated with the collision of Avalonia with the Laurentian margin during the Devonian Acadian orogeny. Although the structural history of the terrane has been well studied, its pressure-temperature (P–T) history is less well constrained, and the mechanisms by which the
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Study on the Impact of Flow Dynamic Allocation Mechanism on the Balanced Propagation of Multicluster Fractures in Horizontal Wells Lithosphere (IF 2.4) Pub Date : 2023-01-09 Qi Chen, Hao Huang, Xiangwei Kong, Bing Liu, Fubin Xin
The implementation of the multicluster fracturing technique in horizontal wells is crucial to the economic development of shale gas reservoirs. The stress shadow area generated by them suppresses the effective expansion of fractures, leading to lower construction quality. Numerous well logging and production data indicate that dynamic flow allocation is also an important mechanism restricting oil and
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Petrogenesis and Tectonic Implications of the Qulihai Pluton in the Northern Margin of the Yili Block, NW China Lithosphere (IF 2.4) Pub Date : 2023-01-09 Ming Cao, Meng Wang, Youxin Chen, Xianzhi Pei, Zuochen Li, Jinjiang Zhang, Bo Zhang, Zhian Bao, Da Xu
Despite extensive research work that has been done, whether the northern margin of the Yili Block (YB) is still an active continental margin during the early Carboniferous period is still in debate. Herein, we conducted zircon U–Pb geochronology, geochemistry, and zircon Lu–Hf isotope studies on the Qulihai pluton in the northern margin of the YB to constrain the petrogenesis and dynamic process. The
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Melting of Subducted Continental Crust in the Cimmerian Collisional Orogenic Belt, NE Iran Lithosphere (IF 2.4) Pub Date : 2023-01-09 Zong-Yong Yang, Xian-Wu Bi, Jing-Jing Zhu, Ruizhong Hu, Pete Hollings, Ali Sholeh, Li-Chuan Pan, Ming-Liang Huang
The subduction of continental crust in orogenic belts that are not associated with high-pressure metamorphism is still poorly understood. The Late Triassic postcollisional granitic rocks of NE Iran are related to the convergence between the Central Iran terrane and the Turan terrane on the southern margin of the Eurasian continent. They intruded into the Paleo-Tethyan suture between the Central Iran
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Monitoring Technology of Surrounding Rock Deformation Based on IWFBG Sensing Principle and Its Application Lithosphere (IF 2.4) Pub Date : 2023-01-09 Yuanguang Zhu, Sheng Wang, Bin Liu, Xuewei Liu, Yongshui Kang
To address the challenge of achieving precise real-time monitoring of significant deformation in deep roadway surrounding rock, a quasi-distributed strain-sensing cable (SSC), which has a spatial resolution of 1 m, was developed based on the principle of Identical Weak Fiber Bragg Gratings. The performance of SSC has been evaluated through a series of calibration tests, revealing a range of 0%–3%,
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Weakening Effect of Water on Mechanical Properties of Brittle Shale under Triaxial Compression Lithosphere (IF 2.4) Pub Date : 2023-01-09 F. W. Yang, B. Y. Li, P. Z. Du, Z. H. Liu
The mechanical properties of rock materials are remarkably affected by water. To reveal the effect of water on the mechanical properties of shale, the conventional triaxial compression tests were implemented for shale with the five kinds of water saturation coefficient. According to the test results, the influence of the saturation coefficient on strength and deformation parameters was analyzed. Based
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A Novel Method to Predict the Permeability of Heterogeneous Sandstones Using Multiple Echo Spacing NMR Measurements Lithosphere (IF 2.4) Pub Date : 2023-01-09 Yufeng Xiao, Hongyan Wang, Zhenxue Jiang, Xinmin Ge, Renxia Zhang, Fangle Song, Jianyu Liu
We propose a novel method for estimating the permeability of heterogeneous sandstones based on the nuclear magnetic resonance (NMR) data with multiple echo spacings. The decaying curves and their corresponding spectra are obtained for different echo spacings to investigate the relaxation property, the diffusion term, and the signal loss contributed by higher echo spacing. Moreover, an empirical model
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Not Only Garnets… Lithosphere (IF 2.4) Pub Date : 2023-01-09 Irina Galuskina, Evgeny Galuskin, Yevgeny Vapnik
Garnets have been known to man since time immemorial and are used in a wide variety of applications as well as being prototypes of useful synthetic materials. Our investigations show that in nature, garnets and minerals with a langasite-type structure can be very close in composition. Examples are cubic Ti-rich garnets with the common formula Ca3(Ti4+,Fe3+,Al)2(Si,Fe3+,Al)3O12 and the new trigonal
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Micropore Structure Characteristics and Recoverability Evaluation of Typical Shale Oil Reservoirs Lithosphere (IF 2.4) Pub Date : 2023-01-09 Lanlan Yao, Zhengming Yang, Haibo Li, Meng Du, Tiyao Zhou, Yapu Zhang, Qianhui Huang, Xinliang Chen, Ning Wang
In view of the weak research on the availability of typical shale oil reservoirs from the perspective of development, this study introduced a two-dimensional nuclear magnetic resonance (NMR) evaluation method on the basis of the previous one-dimensional NMR combined with centrifugal physical simulation experiments. Not only the production characteristics of typical shale oil reservoirs were studied
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Sedimentary Characteristics and Depositional Model of Lacustrine Gravity Flows: A Case Study of Paleogene Shahejie Formation in the Gubei Sag, Eastern China Lithosphere (IF 2.4) Pub Date : 2023-01-09 Zehua Zhang, Hongliang Wang
The genesis and sedimentary architecture of lacustrine gravity flow deposits include ongoing questions affecting the exploration and development of oil and gas, which require attention and investigation. Based on the core description, logging characteristics, and seismic facies in the third member of Paleogene Shahejie formation from the southern Bohai Bay Basin, this study provides some insights regarding
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Method for Predicting Transverse Wave Velocity Using a Gated Recurrent Unit Based on Spatiotemporal Attention Mechanism Lithosphere (IF 2.4) Pub Date : 2023-01-09 Jiaxin Huang, Gang Gao, Xiaoming Li, Yonggen Li, Zhixian Gui
Transverse wave velocity plays an important role in seismic exploration and reservoir assessment in the oil and gas industry. Due to the lack of transverse wave velocity data from actual production activities, it is necessary to predict transverse wave velocity based on longitudinal wave velocity and other reservoir parameters. This paper proposes a fusion network based on spatiotemporal attention
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A Long-Lived Accretionary Process during the Amalgamation of the North China Craton: Insights from Neoarchean–Paleoproterozoic Polyphase Magmatism in the Lüliang Complex Lithosphere (IF 2.4) Pub Date : 2023-01-09 Xinyuan Yu, Jian Zhang, Jin Liu, Changqing Yin, Ying Chen, Minjie Guo, Jiahui Qian, Peng Gao, Changquan Cheng
There has been a long debate regarding the timing of the final amalgamation of the North China Craton, which is considered to have occurred either during the Neoarchean or Paleoproterozoic era. One major point of contention is whether there existed a long-lived subduction lasting through the Neoarchean to Paleoproterozoic. The Lüliang Complex contains multiphases of magmatism and thus represents the
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Mantle Metasomatism and REE Enrichment in the Genetic Source of the Dalucao Carbonatite Complex (Sichuan, China): Insights from Elemental Geochemistry and In-Situ Sr Isotopes of Two Calcite Types Lithosphere (IF 2.4) Pub Date : 2023-01-09 Xiaochao Shu, Fanwei Meng, Rui Tao, Kun Wang
Carbonatites possess the highest rare earth element (REE) concentrations among all magmatic rocks, yet the mechanisms governing the enrichment of REEs in carbonatites remain enigmatic. Carbonatite-hosted calcites provide crucial mineralogical and geochemical insights into addressing this matter. In this study, we present a dataset comprising major and trace elemental geochemistry, as well as in-situ
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3D Plotting of Gold Solubility and Gold Fineness: Quantitative Analysis of Ore-Forming Conditions in Hydrothermal Gold Deposits Lithosphere (IF 2.4) Pub Date : 2023-01-09 Yi Liang, Hangfei Ge, Qiuming Pei, Haonan Huang, Kenichi Hoshino
The 3D plotting of gold solubility and gold fineness aims to illustrate how to quantify their correlations with ore-forming conditions in hydrothermal gold deposits. The thermodynamic calculation of the Au-Ag solid solutions in Mathematica and the 3D plotting in MATLAB are used to build isopleths of gold solubility and gold fineness at different temperatures (200℃, 400℃), pressures (0.1, 5 kbar), salinities
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Estimation of Fracture Size and Probability Density Function by Setting Scanlines in Rectangular Sampling Window Lithosphere (IF 2.4) Pub Date : 2023-01-09 Feifan Gu, Jianping Chen, Qi Zhang, Chun Tan, Yansong Zhang, Qing Wang
Rock masses are very important materials in geotechnical engineering. In engineering rock mass, fracture is the relatively weak part of mechanical strength in rock mass and is the most important factor controlling the deformation, damage, and permeability of rock mass. Therefore, investigating fractures is very important for characterizing rock mass. This paper proposed a new approach by using uniformly
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Lithospheric Structure and Extensional Style of the Red Sea Rift Segments Lithosphere (IF 2.4) Pub Date : 2023-01-09 Kuruvamana Satheeshbabu Sreenidhi, Munukutla Radhakrishna, Peter G. Betts
The Red Sea provides an opportunity to study the processes during the transition from continental rifting to early-stage seafloor spreading during ocean initiation. We delineate variations of lithospheric architecture and the nature of extension along the Red Sea region through joint interpretation of gravity and geoid anomalies and gravity-topography transfer functions. We use lithospheric-scale models
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Geochemical Composition Variations and Tectonic Implications of the Baoligaomiao Formation Volcanic Rocks from the Uliastai Continental Margin, Southeast Central Asian Orogenic Belt Lithosphere (IF 2.4) Pub Date : 2023-01-09 Jianzhou Tang, Zhicheng Zhang, Zejia Ji
The Permo-Carboniferous tectonic evolution in the Uliastai continental margin (UCM), north of the southeast central Asian Orogenic Belt, remains controversial. This work examined the geochemical composition of the felsic volcanic rocks from the lower and upper part of the Baoligaomiao Formation in the UCM. Zircon U-Pb ages reveal that the Baoligaomiao Formation has a long-lived eruption duration, from
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Investigation into the Multistage Mechanical Damage Behavior of Columnar Jointed Basalts with Different Meso-Constitutive Relations and Model Sizes Lithosphere (IF 2.4) Pub Date : 2023-01-09 Yongyi Wang, Bin Gong, Xiaoyu Yang, Chun’an Tang
The mechanical characteristics of columnar jointed basalts (CJBs) are generally considered to be subject to size effects. They display complex mechanical behaviors under lateral pressure, which may be related to the variation in the rock's mesoproperties. In this study, many nonuniform CJB models with various rock meso-constitutive relations and model sizes were established, and their influences on
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Behavior of Platinum-Group Elements during Hydrous Metamorphism: Constraints from Awaruite (Ni3Fe) Mineralization Lithosphere (IF 2.4) Pub Date : 2023-01-09 Anton Kutyrev, Vadim S. Kamenetsky, Alkiviadis Kontonikas-Charos, Dmitry P. Savelyev, Tamara Yu. Yakich, Ivan A. Belousov, Elena I. Sandimirova, Svetlana V. Moskaleva
Natural Fe-Ni alloys are common in meteorites and, presumably, the Earth’s core, where they host significant platinum-group elements (PGE). However, little is known on PGE concentrations in hydrothermal or metamorphic Fe-Ni alloys (i.e., awaruite Ni3Fe) from terrestrial rocks. In this work, we examine the geochemistry of awaruite and related minerals from several placer deposits sourced from the suprasubduction
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Uvarovite from Reduced Native Fe-Bearing Paralava, Hatrurim Complex, Israel Lithosphere (IF 2.4) Pub Date : 2023-01-09 Jacek Futrzyński, Rafał Juroszek, Katarzyna Skrzyńska, Yevgeny Vapnik, Evgeny Galuskin
A new genetic type of chromium garnet—uvarovite with the simplified formula Ca3(Cr,Al,Ti4+,V3+)2(Si,Al)3O12—was detected in unusual wollastonite-gehlenite-bearing paralava within the Hatrurim Complex in Israel. The pyrometamorphic rocks of that Complex usually formed in the sanidinite facies (low pressure and high temperature) and, as a rule, under oxidized conditions. This paralava contains nodules
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Volcanic Age and Geochemistry of the Permian Linxi Formation in Northeast China: Implications for the Tectonic Evolution of the Paleo-Asian Ocean Lithosphere (IF 2.4) Pub Date : 2023-01-09 Haihua Zhang, Hua Zhang, Shuzhong Shen, Zifu Zhao, Liang Qiu, Shuwang Chen, Jian Zhang, Fanhao Gong, Yongfei Li, Yuejuan Zheng, Shouliang Sun, Yujin Zhang
The tectonic evolution of the Paleo-Asian Ocean (PAO) has been well studied, including its gradual narrowing and closure by subduction. However, aspects of the tectonic evolution of the oceanic domain remain unclear, including the exact timing and nature of the closure. The Central Asian Orogenic Belt (CAOB) was formed by the closure of the PAO and, therefore, contains information about the tectonic
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Crust-Mantle Interaction Controls the Formation of High-Mg Adakitic Rocks: Evidence from Early Cretaceous Intrusive Complexes in Luxi Terrane, North China Craton Lithosphere (IF 2.4) Pub Date : 2023-01-09 Songyan Liu, Kangxing Shi, Da Zhang, Changming Wang, Bin Du, Qi Chen, Lei Gao
High-Mg adakite rocks preserve crucial information about the crust-mantle interactions during the magma evolution. The Luxi Terrane, southeastern North China Craton, stores a set of Early Cretaceous high-Mg adakite rocks; nevertheless, their petrogenesis remains controversial. In this study, we present new whole-rock geochemistry, zircon U-Pb-Hf isotopes in the Tiezhai, Jinxingtou, and Sanshanyu complexes
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Holocene Earthquake Cycles of an Active Tectonic Block Boundary Fault Zone: A Case Study in the Qilian–Haiyuan Fault Zone, Northeastern Tibet Plateau Lithosphere (IF 2.4) Pub Date : 2023-01-09 Shumin Liang, Wenjun Zheng, Dongli Zhang, Hui Peng, Xin Sun, Shiqi Wei
Fault zones along active tectonic block boundaries are a significant source of devastating continental earthquakes. Strong earthquakes produce disruptions of sediment and induce characteristic sediments near the fault, which serve as valuable sedimentary evidence for identifying and dating of paleoearthquakes. In this study, we aimed to reconstruct the earthquake history of the Qilian–Haiyuan fault
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Low-Crystallinity Index Chalcedony from Longhua, China: Characteristics and Formation Lithosphere (IF 2.4) Pub Date : 2023-01-09 Qiuli Yan, Guanghai Shi
A low-crystallinity index chalcedony was found in the rhyolitic ignimbrite of the Late Jurassic Zhangjiakou Formation, located in Longhua County, Hebei Province, China. This chalcedony occurs as fillings along the fragile fractures of the host rock and is distinct from any other chalcedony deposits, such as the known basalt and carbonate-related types. The host rock is rhyolitic ignimbrite, comprising
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Mesoscopic Deformation of a Hydraulic and Mechanical Aperture of a Single Fracture under Normal Stress Lithosphere (IF 2.4) Pub Date : 2023-01-09 Haichun Ma, Jingping Wang, Jiazhong Qian, Qiankun Luo, Massimiliano Moscatelli
Studies have focused on describing the interactions between the fluid flow characteristics and structural deformation of fractures at the mesoscopic scale, which is a scale between the macroscale and the microscale. In this work, a three-dimensional numerical simulation based on the Navier-Stokes equation was carried out to investigate the effect of normal stress on the fracture morphology distribution
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There and Back Again: Recycling of the Appalachian Signature in DZ U-Pb Records of Phanerozoic North America Lithosphere (IF 2.4) Pub Date : 2023-01-09 Isaac J. Allred, Michael D. Blum, Bruce C. Frederick, Abdullah M. Wahbi
Continental-scale recycling of detrital zircon (DZ) grains and associated sediment across North American is not well understood. We trace a through line following the DZ proxy for the detritus originally sourced from Grenville and Appalachian orogens. This paper lays out an antecedent framework for one of the greatest sedimentation episodes of the Phanerozoic: the initial dispersal of Appalachian-