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Tourmaline geochemistry as genetic evolution and metallogenic potential indicators of pegmatites: a case study from the Tugeman Be-Li deposit， Middle Altun

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Journal of Earth Science 2024年

作者： Hang Li Xingwang Xu Tao Hong Qiang Ke Yince Ma Kai Kang zhiquan yang Changsheng Guo College of Architecture and Civil Engineering Sanming University Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences University of Chinese Academy of Sciences Innovation Academy for Earth Science Chinese Academy of Sciences Guangdong Provincial Key Lab of Geodynamics and Geohazards School of Earth Sciences and Engineering Sun Yat-Sen University Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) No.3 Geological Party Xinjiang Bureau of Geology and Mineral Exploration and Development

Tourmaline is a common borosilicate mineral in granite and pegmatite， and it is also an important carrier to record the physicochemical evolution information of magmas. However， the genetic relationship between pegmatite-type rare metal mineralization potential and tourmaline-bearing pegmatites is not clear， and the tourmaline geochemical indication of the mineralization type of rare metals needs to be supplemented. In the middle Altun region， extensive tourmaline-bearing pegmatite dykes are prevalent within and surrounding the Tugeman complex. In this paper， the petrology and geochemical characteristics of tourmaline within the pegmatite of the Tugeman Be-Li deposit have been comprehensively analyzed. The research delves into the genetic evolution and metallogenic potential of the pegmatite， emphasizing the indicative role of tourmaline geochemistry in discerning mineralization types in the Tugeman Be-Li deposit. Major and trace element analysis of tourmaline reveals varying contents of FeO （9.37 wt.%–17.10 wt.%）， Al2O3（28.64 wt.%–35.22% wt.%）， and MgO （0.13 wt.%–2.47 wt.%） in the Tugeman Be–Li pegmatite. Li， Zn， and Sn contents range from 204 ppm to 1 590 ppm， 1 143 ppm to 4 089 ppm， and 74 ppm to 396 ppm， respectively. The tourmaline analyzed in this study is magmatic origin and belongs to schorl series， exhibits substitution relationships， including (Na， Fe2+)(X□， Al)-1， (Fe2+， Fe3+)（Mg， Al）-1， (Al，X□)(R2+， Na)-1，（Na， Mg）(X□， Al)-1andX□NaR2+-1. The trace element data of tourmaline show that lithium has four enrichment stages in different mineral crystallization phases. Notably， the tendency of tourmaline in the Tugeman Be-Li pegmatite to evolve towards elbaite implies a magmatic evolution sequence from low to high， transitioning through microcline-albite pegmatite， muscovite-microcline-albite pegmatite， albite pegmatite， and microcline pegmatite. Furthermore， we also propose that the Sc content in schorl can serve as an indicator of pegmatite mineralization type and the Tugeman Be-Li pegmatite has evolved to

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Research on wind turbine blade damage based on pre-stressed FBG strain sensors

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Optoelectronics Letters 2024年第2期20卷 83-88页

作者： CAI Yujie yang zhiquan ZHANG Bihua WEI Yufeng Faculty of Land Resources Engineering Kunming University of Science and TechnologyKunming 650093China Faculty of Public Safety and Emergency Management Kunming University of Science and TechnologyKunming 650093China Beijing FBGTECH Optic Electric Technology Co. Ltd.Beijing 100043China1

One of the essential parts of a wind power generator that captures wind energy is the wind turbine blade.The safety of the blades rapidly declines as a wind turbine's operating period grows.For real-time monitoring,a chip-type pre-stressed fiber Bragg grating(FBG)strain sensor was fabricated.The sensor's structure was improved using simulation analysis along with optimization.It was discovered through calibration trials that the pre-stressing method expanded the sensor's range of measurement,guaranteed overall linearity,and prevented the potential hysteresis phenomena during compression.The sensor's final sensitivity was calculated to be 1.970 pm/με,and its linear fitting coefficient was 0.999.Finally,the sensor was used to monitor the wind turbine blades and the strain change curve of the root of a normally functioning blade is found to be a sine curve,which provides a certain reference value for judging whether the blade is damaged in the future.

关键词： blade strain damage

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Landslide hazard susceptibility evaluation based on SBAS-InSAR technology and SSA-BP neural network algorithm:A case study of Baihetan Reservoir Area

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Journal of Mountain Science 2024年第3期21卷 952-972页

作者： GUO Junqi XI Wenfei yang zhiquan SHI Zhengtao HUANG Guangcai yang Zhengrong yang Dongqing Faculty of Geography Yunnan Normal UniversityKunming 650500China Key Laboratory of Early Rapid Identification Prevention and Control of Geological Diseases in Traffic Corridor of High Intensity Earthquake Mountainous Area of Yunnan ProvinceKunming 650093China Faculty of Public Safety and Emergency Management Kunming University of Science and TechnologyKunming 650093China Key Laboratory of Geological Disaster Risk Prevention and Control and Emergency Disaster Reduction of Ministry of Emergency Management of the People’s Republic of China Kunming University of Science and TechnologyKunming 650093China Guizhou Geological Survey Institute Guiyang 550081China College of Big Data and Intelligent Engineering Southwest Forestry UniversityKunming 650224China

Landslide hazard susceptibility evaluation takes on critical significance in early warning and disaster prevention and reduction.In order to solve the problems of poor effectiveness of landslide data and complex calculation of weights for multiple evaluation factors in the existing landslide susceptibility evaluation models,in this study,a method of landslide hazard susceptibility evaluation is proposed by combining SBAS-InSAR(Small Baseline Subsets-Interferometric Synthetic Aperture Radar)and SSA-BP(Sparrow Search Algorithm-Back Propagation)neural network algorithm.The SBAS-InSAR technology is adopted to identify potential landslide hazards in the study area,update the cataloging data of landslide hazards,and 11 evaluation factors are chosen for constructing the SSA-BP model for training and validation.Baihetan Reservoir area is selected as a case study for validation.As indicated by the results,the application of SBAS-InSAR technology,combined with both ascending and descending orbit data,effectively addresses the incomplete identification of landslide hazards caused by geometric distortion of single orbit SAR data(e.g.,shadow,overlay,and perspective contraction)in deep canyon areas,thereby enabling the acquisition of up-to-date landslide hazard data.Moreover,in comparison to the conventional BP(Back Propagation)algorithm,the accuracy of the model constructed by the SSA-BP algorithm exhibits a significant increase,with mean squared error and mean absolute error reduced by 0.0142 and 0.0607,respectively.Additionally,during the process of susceptibility evaluation,the SSA-BP model effectively circumvents the issue of considerable manual interventions in calculating the weight of evaluation factors.The area under the curve of this model reaches 0.909,surpassing BP(0.835),random forest(0.792),and the information value method(0.699).The risk of landslide occurrence in the Baihetan Reservoir area is positively correlated with slope,surface temperature,and deformation rate,while it is negatively correlated with fault

关键词： Baihetan SBAS-InSAR SSA-BP Landslide hazard susceptibility evaluation

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BnVIR:bridging the genotype-phenotype gap to accelerate mining of candidate variations underlying agronomic traits in Brassica napus

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Molecular Plant 2022年第5期15卷 779-782页

作者： zhiquan yang Congyuan Liang LuLu Wei Shengbo Wang Feifan Yin Dongxu Liu Liang Guo Yongming Zhou Qing-Yong yang National Key Laboratory of Crop Genetic Improvement College of InformaticsHuazhong Agricultural UniversityWuhan 430070China Hubei Key Laboratory of Agricultural Bioinformatics College of InformaticsHuazhong Agricultural UniversityWuhan 430070China

Dear Editor,Genetic variations,which range from single nucleotide polymor-phisms(SNPs)and short insertion/deletions(InDels)to large-scale structural variations(SVs),are the basis of phenotypic diversity.Understanding the effect of genetic variations on traits is critical for uncovering the genetic architecture of various phe-notypes.

关键词： agronomic traits InDel

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Lignin composite ionic liquid lubricants with excellent anti-corrosion,anti-oxidation,and tribological properties

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Friction 2023年第7期11卷 1239-1252页

作者： Chaoyang ZHANG zhiquan yang Qing HUANG Xingwei WANG Wufang yang Chunyu ZHOU Bo YU Qiangliang YU Meirong CAI Feng ZHOU State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China PetroChina Lanzhou Lubricating Oil R&D Institute Lanzhou 730060China Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing Yantai 264006China Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering Yantai 264006China

A new type of lubricating material(BTA-P_(4444)-Lig)was synthesized by combining lignin with tetrabutylphosphorus and benzotriazole.The tribological properties,corrosion resistance,and anti-oxidation properties of BTA-P_(4444)-Lig as a lubricant were investigated.The lubricating material exhibits excellent friction reduction and wear resistance,as well as good thermal stability and excellent oxidation resistance.Mechanistic analysis reveals that the active elements N and P in the lubricating material react with the metal substrate,and the reaction film effectively blocks direct contact between the friction pairs,affording excellent friction reduction and wear resistance.At the same time,the phenolic hydroxyl group in lignin reacts with oxygen free radicals to form a resonance-stable semi-quinone free radical,which interrupts the chain reaction and affords good anti-oxidant activity.

关键词： lignin lubrication ionic liquid anti-oxidant

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运动皮层电刺激治疗脑干梗死后三叉神经痛1例

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中南大学学报（医学版） 2024年第1期49卷 54-57页

作者：付仕宇杨治权中南大学湘雅医院神经外科长沙410008

脑干梗死后继发性三叉神经痛较为罕见,报道甚少。中南大学湘雅医院神经外科收治1例脑干梗死后继发性三叉神经痛的患者。患者为44岁男性,入院后行运动皮层电刺激治疗,术后前1周治疗效果尚可,但1周后治疗效果不佳。该疾病较为罕见,其临床... 详细信息

脑干梗死后继发性三叉神经痛较为罕见,报道甚少。中南大学湘雅医院神经外科收治1例脑干梗死后继发性三叉神经痛的患者。患者为44岁男性,入院后行运动皮层电刺激治疗,术后前1周治疗效果尚可,但1周后治疗效果不佳。该疾病较为罕见,其临床治疗方式的选择还需长期观察。

关键词：脑干梗死三叉神经痛运动皮层电刺激

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若羌阿亚克稀有金属矿田成矿地质条件及找矿前景分析

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新疆地质 2024年第2期42卷 244-249页

作者：杨智全新疆维吾尔自治区地质矿产勘查开发局第三地质大队新疆库尔勒841000

新一轮找矿突破战略行动以来,阿尔金地区稀有金属矿取得重大找矿突破,陆续发现评价了阿亚克、瓦石峡南、库木萨依、塔什达坂等4个具有大型远景的稀有金属矿田。阿亚克稀有金属矿田位于阿尔金山中段,大地构造位置属秦祁昆造山系阿尔金古... 详细信息

新一轮找矿突破战略行动以来,阿尔金地区稀有金属矿取得重大找矿突破,陆续发现评价了阿亚克、瓦石峡南、库木萨依、塔什达坂等4个具有大型远景的稀有金属矿田。阿亚克稀有金属矿田位于阿尔金山中段,大地构造位置属秦祁昆造山系阿尔金古生代造山带阿中地块[1]。地层属塔里木-南疆地层大区阿尔金小区,主要出露地层为古元古界阿尔金岩群及英格里克构造蛇绿混杂岩中部复理石。侵入体为青白口纪、奥陶纪侵入体。发育有466条伟晶岩脉,产于英格里克构造蛇绿混杂岩复理石岩片黑云斜长石英片岩及阿尔金岩群片岩、片麻岩中,稀有金属矿化伟晶岩空间分带特征明显,矿化类型具北铍-中锂-南铍特征。主要控矿断裂为卡尔恰尔-阔什区域性大断裂(阿中断裂)。区内圈定稀有金属相关的1∶5万化探综合异常9处,异常与矿点对应好,均为矿致异常。矿田内已发现阿亚克、吐格曼2处中型锂铍稀有金属矿床,阿亚克矿床圈定67条矿体,矿体地表出露规模较小,深部隐伏相连,延伸稳定。吐格曼矿床圈定矿体12条。矿田成矿条件、成矿背景优越,找矿前景较好。

关键词：阿尔金中段阿亚克稀有金属矿田地质特征找矿前景

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阿尔金地区“天空地深”一体化找矿勘查评价体系应用实践——以阿亚克-瓦石峡南为例

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新疆地质 2024年第2期42卷 314-318页

作者：杨智全新疆维吾尔自治区地质矿产勘查开发局第三地质大队新疆库尔勒841000

阿尔金地区属中高山地形,地势陡峭,海拔一般在2 000 m以上,比高大于300 m。高山区切割较深,地表基本无植被,基岩裸露较好。长期以来,因极端恶劣的交通条件,矿产勘查开发受到严重制约。新一轮找矿突破行动主攻昆仑-阿尔金,对高寒山区、... 详细信息

阿尔金地区属中高山地形,地势陡峭,海拔一般在2 000 m以上,比高大于300 m。高山区切割较深,地表基本无植被,基岩裸露较好。长期以来,因极端恶劣的交通条件,矿产勘查开发受到严重制约。新一轮找矿突破行动主攻昆仑-阿尔金,对高寒山区、工作空白区探索绿色、低成本、高效率的勘查评价技术方法势在必行,在此背景下逐渐形成适应阿尔金地区“天空地深”一体化找矿勘查评价体系[1]。该体系中“天”指遥感技术应用,即采用高清卫片结合谷歌地图等影像资料识别解译伟晶岩脉,圈定伟晶岩脉集中分布区域;“空”指无人机技术应用,即采用航空摄影及三维建模对地表伟晶岩延伸情况进行圈定;“地”指地面传统找矿手段应用,即采用路线地质调查、填图、槽探及采样分析等手段对无人机圈定的伟晶岩脉进行地面查证,圈定含矿伟晶岩脉;“深”指深部钻探手段应用,即采用便携式钻机了解含矿伟晶岩脉深部延伸及品位变化情况。该体系的应用可精准锁定找矿靶区,圈定矿(化)体,对矿区进行勘查评价,极大提高了找矿勘查效率,缩短找矿周期,在地形切割强烈的阿尔金地区值得广泛运用。

关键词：找矿勘查评价体系阿尔金地区遥感技术无人机地面查证

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Experimental Study on Failure Process and Hydrological Response of Granite Residual Soil Slope with Different Fissure Positions in Southern China

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Journal of Earth Science 2023年

作者： Liping Liao Minghao Gong zhiquan yang Yingzi Xu Wenzhi Wei Yao Wei Faculty of Public Safety and Emergency Management Key Laboratory of Geological Disaster Risk Prevention and Control and Emergency Disaster Reduction of Ministry of Emergency Management of the People's Republic of China Key Laboratory of Early Rapid Identification Prevention and Control of Geological Diseases in Traffic Corridor of High Intensity Earthquake Mountainous Area of Yunnan Province Kunming University of Science and Technology College of Civil Engineering and Architecture Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education Guangxi Key Laboratory of Disaster Prevention and Engineering Safety Guangxi University

Granite residual soil slope is often destroyed, which poses great threats to Rong County in southeastern Guangxi, China. Heavy rainfall and fissures are the major triggering and internal factors. The fissure that controls the slope stability and the associated failure mechanisms remain unclear.The purpose of this study was to identify the controlling fissures through field investigation, elucidate the effect of its position, and analyze the failure process and hydrological response of residual soil slope through artificial flume model tests. The results comprised five aspects.(1) Surface weathering and unloading fissures could affect slope stability.(2) The failure processes with different fissure positions exhibited inconsistent characteristics.(3) The volume moisture content(VMC) had the most direct response at the fissure tip. The corresponding infiltration rate was the highest. The response time of pore water pressure(PWP) was longer than that of VMC. Fluctuations in PWP were associated with VMC and changes in the soil microstructure due to local deformation.(4) Slope failure was accompanied by serious soil erosion. This could be attributed to the infiltration direction and the interaction between soil and water.(5) Fissured soil slopes experienced five similar failure processes: sheet erosion and partial failure of the slope foot, occurrence of preferential flow and enlargement of the sliding area, creep deformation and tension fissure emergence, block sliding and gully erosion, and flow-slip.

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海马硬化合并颞叶新皮质病变颞叶癫痫的手术疗效及其预后因素分析

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中华神经外科杂志 2024年第4期40卷 354-360页

作者：杜梁超杨治权中南大学湘雅医院神经外科长沙410008

目的探讨海马硬化合并题叶新皮质病变题叶癫痫(TLE)患者的手术疗效及其预后影响因素。方法回顾性收集2014年1月至2018年4月中南大学湘雅医院神经外科接受前题叶切除手术治疗海马硬化合并叶新皮质病变的62例TLE患者的临床资料。术后3个... 详细信息

目的探讨海马硬化合并题叶新皮质病变题叶癫痫(TLE)患者的手术疗效及其预后影响因素。方法回顾性收集2014年1月至2018年4月中南大学湘雅医院神经外科接受前题叶切除手术治疗海马硬化合并叶新皮质病变的62例TLE患者的临床资料。术后3个月及每年通过门诊或电话方式对患者进行随访,根据国际抗癫痫联盟(ILAE)癫痫预后标准进行手术疗效分级,并分为疗效满意组(满意组)和疗效不满意组(不满意组),采用单因素和多因素logistic回归分析法评估可能影响手术疗效的因素;将单因素分析中P0.05)。多因素分析结果显示,双侧IEDs是影响术后疗效不满意的危险因素(OR=8.57,95%CI:1.62~45.40,P=0.012)。与双重病理组比较,FCDⅢa组患者的手术年龄较大、病程较长,差异均有统计学意义(均P0.05)。结论手术切除是治疗海马硬化合并叶新皮质病变TLE患者的有效方式,双侧IEDs是手术疗效不佳的危险因素。尽管FCDⅢa型与双重病理的患者在临床特征上有差异,但两组患者的手术疗效类似。

关键词：癫痫,颞叶皮质发育畸形,Ⅲ组治疗结果影响因素分析海马硬化双重病理

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