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Petrogenesis and Tectonic Implications of the Late Silurian–Early Devonian Bimodal Intrusive Rocks in the Central Beishan Orogenic Belt,NW China:Constraints by Petrology,Geochemistry and Hf Isotope

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Journal of Earth Science 2023年第2期34卷 431-443页

作者： Jian tian hou-tian xin Xue-Jian Teng Min Li Qun-An Liao Yong Zhang Bang-Fang Ren tianjin Center China Geological SurveyTianjin 300170China Shenyang Center China Geological SurveyShenyang 110086China School of Earth Sciences China University of GeosciencesWuhan 430074China

A large number of Late Silurian–Early Devonian intrusive rocks are distributed in the central Beishan orogenic belt(BOB).Tectonic setting of these intrusive rocks is of great significance to the study of the subduction and accretion of the Paleo-Asian *** studies show that most of the intrusive rocks in this region are S-type or A-type *** this study,we firstly reported the Late Silurian–Early Devoniandia bases,granodiorites on the southside of the Baiyunshan ophiolitic mélanges belt,as a part of Hongliuhe-Xichangjing ophiolitic mélanges belt(HXOMB).Zircon LA-ICP-MS U-Pb dating yields emplacement ages between 418 and 397 Ma,REE distribution patterns exhibit enriched LREE and flat HREE in the diabases,the discriminant diagrams show that the diabases have geochemical characteristics of intraplate *** granodiorites in this paper present more like S-and A-type granitoids reported,showing the geochemical characteristics of syn/post-collision ***,the bimodal magmatic rocks are developed during Late Silurian–Early Devonian on both sides of the HXOMB,which are related to the tectonic background of the post orogeny *** diabases are tholeiitic with relative strong depletedεHf(t)(+8.1 to+13.0),which are mainly from relative depleted *** granodiorites are calc-alkaline with relative slightly depletedεHf(t)(+0.7 to+5.6)and the lower Mg#and MgO contents(34.6–36.9,0.50 wt.%–1.19 wt.%respectively),reflecting the source characteristics of ***,the remelting of juvenile crust may be the main way of continental crust accretion during Late Silurian–Early Devonian in the central BOB.

关键词： Beishan orogenic belt ophiolitic mélanges belt Late Silurian–Early Devonian bimodal intrusive rocks extension geochemistry

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Petrology,Zircon Chronology and Geochemistry of the Late Silurian Ophiolitic Mélanges and the Baiyunshan Forearc Complex in the Central Beishan Orogenic Belt,NE China

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Journal of Earth Science 2023年第2期34卷 444-455页

作者： hou-tian xin Jian tian Xue-Jian Teng Li-xin Sun Guo-Zhen Zhang Yong Zhang Bang-Fang Ren Shenyang Center China Geological SurveyShenyang 110086China tianjin Center China Geological SurveyTianjin 300170China

The WNW-ESE-trending Baiyunshan ophiolitic mélange is exposed in the central Beishan orogenic belt(BOB),between the Hongliuhe-Niujuanzi and Xichangjing ophiolitic mélanges in the west and east,*** we present new petrological,geochemical,and zircon U-Pb age data for the Baiyunshan ophiolitic mélange and metamorphosed lithic sandstones of“the Baiyunshan Formation”.The Baiyunshan ophiolitic mélange is characterized by a block-in-matrix structure,and the blocks of ultramafic-mafic rocks are mainly pyroxenites,dunites,gabbros,and minor *** U-Pb dating yielded an emplacement age of 424.2±3.7 Ma for the *** ultramaficmafic rocks have geochemical features of supra-subduction zone-type ophiolites,including low Ti contents(TiO2=0.01 wt.%–0.35 wt.%),negative Nb-Ta anomalies,and U-shaped rare earth element patterns with positive Eu anomalies(δEu=0.99–3.25).“The Baiyunshan Formation”is exposed to the north of the ophiolitic mélange,and comprises mainly meta-cherts in its lower part and metasandstones and marbles in its upper *** of basalt are locally dispersed in the sand-slate *** ages of detrital zircons in the metamorphosed lithic sandstones range from 521 to 464 Ma,with an age peak of 500 Ma,which is similar to those of the Gongpoquan arc in the *** central Beishan orogenic belt experienced continuous subduction of the Hongliuhe-Xichangjing oceanic lithosphere in the Late Silurian,which produced the Baiyunshan forearc complex and supra-subduction zone-type ophiolite.

关键词： Beishan orogenic belt the Hongliuhe-Xichangjing Ocean the ultramafic-mafic rocks Late Silurian SSZ-type ophiolite Subduction and accretion geochemistry

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Petrology， Zircon chronology and Geochemistry of the Late Silurian ophiolitic mélanges and the Baiyunshan forearc complex in the central Beishan orogenic belt， NE China

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Journal of Earth Science 2020年

作者： hou-tian xin Jian tian Xue-Jian Teng Li-xin Sun Guo-Zhen Zhang Yong Zhang tianjin Center，China Geological Survey

The WNW–ESE-trending Baiyunshan ophiolitic mélange is exposed in the central Beishan orogenic belt （BOB）， between the Hongliuhe–Niujuanzi and Xichangjing ophiolitic mélanges in the west and east， respectively. Here we present new petrological， geochemical， and zircon U–Pb age data for the Baiyunshan ophiolitic mélange and metamorphosed lithic sandstones of “the Baiyunshan Formation”. The Baiyunshan ophiolitic mélange is characterized by a block-in-matrix structure， and the blocks of ultramafic–mafic rocks are mainly pyroxenites， dunites， gabbros， and minor hornblendites. Zircon U–Pb dating yielded an emplacement age of （424.2 ± 3.7） Ma for the gabbros. The ultramafic–mafic rocks have geochemical features of supra-subduction zone-type ophiolites， including low Ti contents (TiO2 = 0.01–0.35 wt.%)， negative Nb–Ta anomalies， and U-shaped rare earth element patterns with positive Eu anomalies （δEu = 0.99–3.25）. “The Baiyunshan Formation” is exposed to the north of the ophiolitic mélange， and comprises mainly meta-cherts in its lower part and metasandstones and marbles in its upper part. Blocks of basalt are locally dispersed in the sand–slate matrix. The ages of detrital zircons in the metamorphosed lithic sandstones range from 521 to 464 Ma， with an age peak of 500 Ma， which is similar to those of the Gongpoquan arc in the north. The central Beishan orogenic belt experienced continuous subduction of the Hongliuhe–Xichangjing oceanic lithosphere in the late Silurian， which produced the Baiyunshan forearc complex and supra-subduction zone-type ophiolite.

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Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu xin Ma Shaojie tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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Division of tectonic-strata superregions in China

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China Geology 2018年第2期1卷 236-256页

作者： Yang-chun Li Ke-xin Zhang Wei-hong He Ya-dong Xu Bo-wen Song Yang Yu Xue Ke Xiao-hu Kou Man-sheng Luo hou-tian xin Jun-yu Fu Zhu-liang Yang Xiao-ming Zhao Fu-guang Yin Zhi-pei Li Development and Research Center of China Geological Survey Beijing 100037China Institute of Geological Survey China University of GeosciencesWnhan 430074China State Key Laboratory of Biological and Environmental Geology China University of GeosciencesWuhan 430074China tianjin Institute of Geology and Minerals Resources Tianjin 710054China Shenyang Institute of Geology and Minerals Resources Shenyang 110032China Nanjing Institute of Geology and Minerals Resources Nanjing 210016China Wuhan Institute of Geology andMinerals Resources Wuhan 430223China Chengdu Institute of Geology and Minerals Resources Chengdu 610082China Xi'an Institute of Geology and Minerals Resources Xi'an 710054China

The continent of China is grouped into Pan-Cathaysian blocks,Laurasia and Gondwana Continental margins and relics of three oceans-Paleoasian,Tethys,and Pacific as a *** detail,the continent of China grew up by coalescence of three blocks or platforms (North China,Tarim and Yangtze)and eight orogenic belts (Altay-Inner Mongolia-Daxinganling,tianshan-Junggar-Beishan,Qinling-Qilian- Kunlun,Qiangtang-Sanjiang,Gangdise,Himalaya,Cathaysia,Eastern Taiwan)during the processes of oceanic crust disappearance and acceretionary-collision of continental *** the orogenic belts,six convergent crustal consumption zones (Ertix-Xar Moron,South tianshan,Kuanping-Foziling,Bangong co-Shuanghu-Nujiang-Changning-Menglian,Yarlung-Tsangpo,Jiangshao-Chenzhou-Qinfang)have been ***,the strata of the continent of China are subdivided into 17 tectonicstrata superregions,which tectonically belong to three blocks or platforms,six convergent crustal consumption zones and eight orogenic series,*** division is based mainly on differences of tectonic environment and tectonic evolution among blocks,zones and belts,including the timing of when the oceanic crusts transferred into continental crusts,the paleobiogeographic features,and the types of strata.

关键词： Strutural geology Tectonics Block Orogenic belt Convergent crustal consumption zone Strata sequence Superregion

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Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui Guo Yun Chen Hao Zhang Jiawei Xiao Maoxiang hou Huilong Liu Li Ma xin Chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

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Multi-receptive field interaction network for shape from polarization

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Science China(Information Sciences) 2025年第1期 394-395页

作者： Yini PENG Rui LIU Zhiyuan ZHANG Zhongyuan WANG Jiayi MA xin tian Electronic Information School Wuhan University Computer Science School Wuhan University Wuhan Institute of Quantum Technology

Shape from polarization (SfP) method can use the polarization information in reflected light to estimate the surface normal of the target,which can further reconstruct the shape of the *** a simple image capture process,it can use low-cost equipment to meet a high precision imaging requirement,which can be used in remote scenes and other applications.

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Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Ductility

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Performance enhancement of perovskite solar cells with Cs2PtI6-xBrx absorber layer based on numerical simulation

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Optoelectronics Letters 2025年

作者： Du Zuyan Yuan Yujie hou Guofu xin Yupeng Bi Jinlian Li Wei tianjin Key Laboratory of Film Electronic and Communication Devices， School of Integrated Circuit Science and Engineering， tianjin University of Technology Institute of Photoelectronic Thin Film Devices and Technology， Nankai University

Cs2TiBr6， characterized as a lead-free vacancy-ordered double perovskite material， demonstrates notable stability and photoelectric performance， rendering it suitable for application in perovskite solar cells. However， the experimental efficiency of this material is currently limited， achieving only 3.12%. This efficiency limitation primarily stems from the material’s wide bandgap， which results in insufficient light absorption. To address this issue， this study utilized Cs2PtI6-xBrxfor band structure fine-tuning. By adjusting the bandgap of Cs2PtI6-xBrxthrough Br-doping， not only was the alignment of the energy bandgap in the absorption layer effectively adjusted， but the cutoff range of light absorption was also significantly expanded. Setting the Cs2PtI6-xBrxbandgap to 1.4 eV resulted in optimal device performance. Additionally， comparative analyses aimed at boosting solar cell efficiency were performed on both hole transport and electron transport layer materials. Subsequently， the structure of the perovskite solar cell was optimized using an FTO/TiO2/Cs2TiBr6/Cs2PtI6-xBrx/Cu2O/Au configuration. Furthermore， the influence of the absorber layer thickness and defect density on device performance was studied. Ultimately， this configuration enabled the Cs2TiBr6/Cs2PtI6-xBrxsolar cell to achieve a peak conversion efficiency of 29.69%.

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Polybenzimidazolium-reinforced polyimide separators to inhibit dendrites for high-security lithium-ion batteries

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Science China Chemistry 2025年

作者： Guohua Sun Jiaqi Cui Qingsong Zhang Yisong Zhou xinluo Li Yingying Zhang Zhanao Zhang xin Zhang Jiantao Fan Pengpeng Li Lianlong hou Nanjun Chen Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and Engineering Hebei University of Science and Technology State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University

Lithium dendrite formation poses a significant safety hazard in lithium-ion batteries（LIBs）, severely impeding their widespread adoption and further technological advancements. Here, we present a novel quaternized polybenzimidazolium（q-PBI） to armor polyimide（PI） nanofiber separator（q-PBI@PI）, in which the q-PBI containing lithiophilicity and anionphilicity sites serves as the multifunctional nano-layers to suppress the Li dendrite and reinforce the mechanical properties of PI nanofiber ***, the q-PBI@PI separator displays an unprecedented mechanical strength of 82.8 MPa, significantly outperforming previously reported PI nanofiber membranes（typically below 50.0 MPa）. Besides, we demonstrate that the q-PBI@PI separator simultaneously possesses low nucleation overpotential（59 mV） and exceptional average coulombic efficiency due to the suppression of Li dendrite. Importantly, q-PBI@PI-based Li||Li battery enables a stable Li plating-stripping at 1.0 m A cm-2for600 h. Attributing to these exceptional merits, the armored PI separator-based LIBs display remarkable specific capability and capacity retention. The density function theory calculations reveal that q-PBI is conducive to the desolvation of Li+and can immobilize Li+and PF6-ions near affinity sites of PI nanofibers for inhibiting the formation of Li dendrites. Our work paves a new avenue for the design of next-generation high-performing separators in LIBs.

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