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| 1 | Geochemistry and SHRIMP Zircon U-Pb Age of Post-Collisional Granites in the Southwest Tianshan Orogenic Belt of China:Examples from the Heiyingshan and Laohutai Plutons显示文摘摘要:Heiyingshan 花岗石和在西南 Tianshan 暴露的 Laohutai 花岗石 plutons geochemically 类似于 A 类型花岗石。分析证明两个是 ferron calc-alkalic peraluminous 或 ferron 有 SiO2 的相对高的集中的碱钙的 peraluminous (>70%) ,高碱内容(Na2O + K2O =7.14%-8.56% ;K2O > N2O;A/CNK = 0.99-1.20 ) ,并且在 Eu, Ba, Sr, P 和 Ti 的显著否定 anomales。285 楡? 汐瑵湯 ? 的虾锆石 U-Pb 年龄 ? 鯄 ? 鯄?? | LONG Lingli GAO Jun WANG Jingbin QIAN Qing XIONG Xianming WANG Yuwang WANG Lijuan GAO Liming | 2008 | Acta Geologica Sinica(English Edition)2008,82,2: | 19 |
| 2 | Tectono-Metallogenic System in the Altay Orogenic Belt,China显示文摘The Altay erogenic belt of China is an important metallogenic belt of base metals, rare metals and gold. The main orogenic-metallogenic epoch is the Hercynian (Late Palaeozoic). Hercynian orogeny underwent two tectonic stages: the early volcano-passive continental margin extension (D1-D2) and late subduction-collision (D3-P). There correspondingly developed two different metallogenic systems. One is the stratabound massive sulphide and iron metallogenic system related to volcano-passive continental margin, and the other is the epigenetic gold and granite-associated rare metals system formed by collision. Very few mineralizations were formed during the subduc-tion time. | WANG Jingbin ZHANG Jinhong DING Rufu FANG Tonghui | 2000 | Acta Geologica Sinica(English Edition)2000,74,3: | 12 |
| 3 | Fluid-melt Inclusions in Fluorite of the Huanggangliang Skarn Iron-Tin Deposit and Their Significance to Mineralization显示文摘For the first time, fluid-melt inclusions are found in fluorite of the Huanggangliang skarn iron-tin deposit (HSID). The fluorite was formed in the main stage of mineralization, named the hydro-skarnization stage. The inclusions contain various components such as Fe, Mg and Cr from deep sources. The melts of primary inclusions are mainly Ca- and F-rich and those of secondary inclusions tend to become Si-rich. During this evolution process, the melts and iron daughter minerals decreased and even vanished. These facts reveal that the evolution of the primary mineralizing fluids and the differentiation of the fluids and melts are the main factors leading to the deposition of Fe, Sn and other elements. This discovery confirms the magmatic genesis of the HSID and has filled in the gaps in the research of magmatogenic skarn deposits and furnished new methods for such research. Furthermore, it has enlarged the scope of the research on fluid inclusions. | WANG Lijuan WANG Jingbin WANG Yuwang MAO Qian | 2001 | Acta Geologica Sinica(English Edition)2001,75,2: | 12 |
| 4 | Experimental investigations on the power extraction of a turbine driven by a pulse detonation combustor显示文摘In order to grasp the interaction mechanism between the pulse detonation combustor(PDC)and the turbine,the experimental work in this paper investigates the key factors on the power extraction of a turbocharger turbine driven by a PDC.A PDC consisting of an unvalved tube is integrated with a turbocharger turbine which has a nominal mass flow rate of 0.6 kg/s and50000 r/min.The PDC–turbine hybrid engine is operated on gasoline-air mixtures and runs for6+min to achieve a thermal steady state,and then the engine performance is evaluated under different operating conditions.Results show that the momentum difference per unit area between the turbine inlet and outlet plays an important role in the power extraction,while the pressure peak of the detonation has little effect.The equivalence ratio of fuel and air mixture and the transition structure between PDC and turbine are also important to the power extraction of the turbine.The present work is promising as it suggests that the performance beneft of a PDC–turbine hybrid engine can be realized by increasing the momentum difference per unit area through the optimal design of transition section between the PDC and turbine. | Li Xiaofeng Zheng Longxi Qiu Hua Chen Jingbin | 2013 | Chinese Journal of Aeronautics2013,26,6: | 9 |
| 5 | The Tuerkubantao ophiolite melange in Xinjiang,NW China:New evidence for the Erqis suture zone显示文摘The extension of the suture zone between the Siberian and Kazakhstan continents in China has been a matter of debate because few outcrops of ophiolitic melange have been found so far.The recently found Tuerkubantao ophiolitic melange,which is located east of the Kekesentao Mt.in the Buerjin County of the Chinese Altay,provides an important clue for this problem.This paper presents the results of field investigation,petrology,U-Pb isotope dating of zircons and bulk-rock geochemistry of the Tuerkubantao melange rocks.The melange consists of fault-contacted ultramafic rocks,gabbro, diabase,basalt,flysch and granitoids.The ultramafic-mafic rocks are Mg-rich(Mg~#=4.25—6.35) and w(SiO_2) spans 38.8%—46.8%.Basalt and gabbro are geochemically similar and are characterized by low w(FeO^t)(10.9%),total alkali w(Na_2O+K_2O)=2.58%) and w(TiO_2)(1.17%) and affinity to the Mg-rich tholeiite series.The flat REE and trace-element patterns of the ultramafic-mafic rocks are indicative of their ophiolite origin,i.e.,formation in a mid-oceanic ridge setting.The fragments of low-K gneissic granite formed in suprasubduction or syn-collisional setting.Zircons from gabbro and gneissic granite yielded U-Pb ages of 363 and 355 Ma.respectively,suggesting Late Devonian mid-oceanic spreading and oceanic subduction accompanied by suprasubduction magmatism.The Tiierkubantao ophiolite together with the Qiaoxiahala and Buergen ophiolites of the Kekesentao belt define an ophiolitic melange belt extending along the Erqis fault.This belt probably belongs to the Ural-Zaisan -South Mongolian suture-shear zone formed during the subduction of the Paleo-Asian Ocean and subsequent collision of the Siberian and Kazakhstan continents. | Yuwang Wang Jingbin Wang Lijuan Wang Lingli Long Pingzhi Tang Zhen Liao Huiqiong Zhang Yu Shi | 2012 | Geoscience Frontiers2012,3,5: | 9 |
| 6 | Ore-forming fluid and mineralization of Caijiaying and Dajing polymetallic ore deposits显示文摘Fluid inclusions from the Dajing and Caijiaying deposits have nearly the same homogenization temperature. Correlation between temperature and salinity shows that both Sn- and Cu-bearing fluids Sn and Cu were present in the Dajing deposit but only one kind of fluids continuously evolved in the Caijiaying deposit. Study on rare earth elements (REE) in ancient fluid from the inclusions indicates that the fluid of Sn mineralizing stage in Dajing was derived from remelting magma of the continental crust, and the fluid of Cu-Pb-Zn mineralizing stage in the Dajing deposit and the fluid of Cu-Pb-Zn mineralization in the Caijiaying deposit were derived from the mantle. It is concluded that the Cu-Pb-Zn mineralizations in the Dajing and Caijiaying deposits resulted from the identical tectono-thermal event of magma-fluids induced by Mesozoic tectonic transition and extension in the eastern part of North China Craton. | WANG Lijuan,WANG Jingbin, WANG Yuwang & ZHU Heping1. Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2. Beijing Institute of Geology for Mineral Resources, Beijing 100012, China Correspondence should be addressed to Wang Lijuan (email: wlj@mail.igcas.ac.cn) | 2004 | Science China Earth Sciences2004,47,2: | 8 |
| 7 | Physicochemical Control of the Early Permian Xiangshan Fe-Ti Oxide Deposit in Eastern Tianshan(Xinjiang),NW China显示文摘The Xiangshan mafic-ultramafic complex is one of the major Early Permian mafic-ultramafic intrusions in eastern Tianshan(Xinjiang, NW China), and consists of two major intrusive phases. The first intrusive phase is mainly gabbroic rocks hosting ilmenite mineralization, while the second intrusive phase is mainly lherzoilite associated with Ni-Cu sulfide mineralization. The Xiangshan ilmenite orebodies hosted in the Fe-Ti oxide-bearing gabbro occur along the contact between hornblende gabbros and leucogabbros. The hornblende gabbros and Fe-Ti oxide rich gabbros at Xiangshan are newly dated to be Early Permian(280.1 and 279.2 Ma, respectively). Major and trace element compositions of zircons and whole rocks from Xiangshan hornblende gabbro and Fe-Ti oxide gabbro have been measured by in situ excimer laser ablation ICP-MS. Zircon Ce^(4+)/Ce^(3+) ratios based on lattice-strain model and Ti-in-zircon temperatures of hornblende gabbro and Fe-Ti oxide gabbro of the Xiangshan complex are calculated to evaluate the physicochemical variations during the ilmenite mineralization. Whole-rock geochemistry and zircon trace element geochemistry suggest that Fe-Ti oxide gabbros were formed from a basaltic parent magma which had undergone a transfromation from being H_2O-rich to H_2O-poor. During the magmatic evolution, primitive, H_2O-poor basaltic melts may have been replenished into the system, increasing its solidus temperature and decreasing its oxygen fugacity and H_2O contents. This may have supperessed the Ti-rich poikilitic hornblende fractionation and promoted the plagioclase fractionation, which consequently concentrated the ore-forming components in the residual melts and generated the ilmenite mineralization. | Yu Shi Yuwang Wang Jingbin Wang Lutong Zhao Hongjing Xie Lingli Long Tao Zou Dedong Li Guochao Zhou | 2018 | Journal of Earth Science2018,29,3: | 6 |
| 8 | Metallogenic Series Related to Permian Mafic Complex in North Xinjiang:Post-collisional Stage or Mantle Plume Result?显示文摘与在北 Xinjiang 的二叠的 mafic 建筑群有关有四种沉积物类型,即,铜镍硫化物沉积物, vanadic titanomagnetite 沉积物,磁铁矿(-cobalt) 沉积物和 Cu-Ni-VTiFe 合成沉积物。沉积物是分布式的与靠近、连续的 metallogenic 年龄跨越构造单位。一种过渡沉积物类型能发生在结束成员沉积物之中。主人岩石的踪迹元素证明他们能源于类似的来源区域。因此,他们组成与也是中亚 Metallogenic 省(营地) 的 post-collisional 阶段的一个标志系列的 mafic-ultramafic 建筑群有关的一个特别 metallogenic 系列。系列的 metallogenic 年龄全部在 260 妈和 300 妈之间二叠。不同于从一根披风羽毛的矿化作用,这个系列的 metallogenic 时期跨越至少 40 妈。与 Emeishan 披风羽毛的相关存款相比,北方 Xinjiang 系列有一个类似的形成矿石的元素集合但是最好开发了 Cu-Ni 硫化物存款而非 vanadic titanomagnetite 存款。在有这个系列的共存,北方 Xinjiang 区域开发了与 felsic 有关的一套 syntectonic Au-Cu-Mo metallogenic 系列暴烈恼人的建筑群,它可能显示没有与披风羽毛活动的直接关系。从对早迟了,即,到磁铁矿的铜镍硫化物的顺序(-cobalt)到 vanadic titanomagnetite 沉积物,主人岩石系列从 mafic-ultramafic 和 tholeiite 系列演变到 mafic 和 alkalic 系列, REE 内容趋于与 REE 分别增加增加,并且一些踪迹元素(特别地 LIL )也显示出一个增加的趋势。上述进化整齐可能反映岩浆来源加深的一堂功课,热接口往下移,精力逐渐地用尽,并且新大陆人外壳在碰撞以后的阶段形成趋于稳定。 | WANG Yuwang WANG Jingbin WANG Lijuan LONG Lingli | 2008 | Acta Geologica Sinica(English Edition)2008,82,4: | 6 |
| 9 | An experiment-library least-squares method on on-line coal element contents analysis显示文摘A new experiment-library least-squares(experiment-LLs) method used in the neutron inelastic-scattering and thermal-capture analysis(NITA) technique for on-line coal analysis was developed,which has significantly decreased the non-linear radiation effects.In this method,sixty samples with preset elemental contents were made,from whose experimental spectra twenty single-element spectrum libraries corresponding to twenty kinds of coal were built using the least-squares method.The spectrum of the unknown sample was analyzed based on these twenty libraries to estimate its element contents.With the initial estimated result,the procedure of developing library and analysis was iterated to build a new library with the closest element contents to the unknown sample.Hence the experiment-LLs method can reduce non-linear radiation effects.The experiment-LLs method was performed on an improved coal analysis system which was equipped with a long-life 14 MeV pulsed-neutron generator,a bulk BGO detector with a temperature controller,a moisture meter and coal-smoothing device.The precisions of this system for ash content,water content,volatile content and calorific value have reached 1.0wt%,0.5wt%,1.0wt%,350 kJ/kg,respectively. | WANG HuiDong LU JingBin LU YuPing YANG Dong MA KeYan YANG Kang LIU YuMin CHENG DaoWen | 2012 | Science China(Physics,Mechanics & Astronomy)2012,55,11: | 6 |
| 10 | Minimum critical thickness of dike for ore-bearing fluid injection:A new approach applied to the Shihu gold deposit,Hebei Province,North China显示文摘根据由 transmagmatic 液体(TMF ) 的 metallogenic 理论,一 magmatic 侵入是忍受矿石的液体,然而并非他们的来源的一条隧道。因此,为注射使用 TMF 能力进并且为逃离 magmatic 侵入评估它的形成矿石的潜力是可能的。当当岩浆充分结晶时,忍受矿石的液体不能有效地注入 magmatic 侵入,改变的冷却时间和率粘性能被用来估计侵入的最小的批评厚度。一个维的热转移模型被用来在 Shihu 金存款为不同作文(花岗石斑岩,石英闪长岩和辉绿岩) 的三个代表性的堤决定冷却时间。它也估计率粘性在这些时间间隔变化了。我们作为最小的批评厚度在冷却时间厚度曲线对厚度曲线的交叉拿了堤的厚度。为有效地注入岩浆的忍受矿石的液体,为三个代表性的堤的最小的批评厚度是为花岗石斑岩,为石英闪长岩的 8.22 m 和为辉绿岩的 1.02 m 的 33.45 m,显示忍受矿石的堤一定比每价值厚。这些结果与矿石身体的出现一致,并且因此,他们能在实践被使用。基于在长度和堤的宽度之间的统计关系,这些批评厚度被用来计算批评区域:为辉绿岩,为石英闪长岩的 0.0140.068 km2 和为花岗石斑岩的 0.0110.034 km2 的 0.00030.0016 km2。这暗示忍受矿石的次要的侵入改变了相应于他们的作文的区域。数字模拟提供了忍受矿石的侵入的暴露的厚度和区域的理论阀值。这些价值能被用来决定堤的形成矿石的潜力。 | Dedong Li Yuwang Wang Jingbin Wang Zhaohua Luo Jiulong Zhou Zongfeng Yang Cui Liu | 2012 | Geoscience Frontiers2012,3,5: | 6 |
| 11 | Fluid mineralization of the Dajing Sn-polymetal deposit: Evidence from LA-ICP-MS analysis of individual fluid inclusions显示文摘从 Dajing 存款的 Sn-Cu 矿石身体并且从 Huanggangliang 存款的 Sn 矿石身体在荧石和石英套住的单个液体包括上的 LA-ICP-MS 分析被进行用液体的 Rb/Sr 和 Sn/Cu 比率在 Dajing 存款跟踪 Cu 富有、 Sn 富有的液体的来源和进化。在 theDajing 的Cu富有的液体扔的结果表演,相对,在 Na 并且可能的富人源于深层的基本岩浆,包含 Cuseveral 到几多于 Sn ,和 Sr 的十时间几到几多于 Rb 的十时间,当时Sn富有的液体,相对,在 K 并且可能的富人源于高级花岗石的岩浆,包含 Sn 几到几多于 Cu ,和 Rb 的十时间几到几多于 Sr 的十时间。这被建议 Sn 富有并且 Cu 富有的液体在阶段被混合对低温度和低咸度中等,在 Dajing 存款的中央部分导致 Cu-Sn 矿石身体的形成。 | WANG Lijuan WANG Yuwang WANG Jingbin D Gunther | 2006 | Chinese Science Bulletin2006,51,22: | 5 |
| 12 | Design and physical model experiment of an attitude adjustment device for a crawler tractor in hilly and mountainous regions显示文摘To address the problems of difficult leveling and poor stability of hill crawler tractors,an attitude adjustment device based on a parallel four-bar mechanism was designed,and the mechanical reasons for the sideslip instability of hill crawler tractors were analyzed.On this basis,a posture adjustment mechanism based on a parallel four-bar mechanism was proposed,and the structure of the complete attitude adjustment device was designed.To ensure that this device meets the strength requirements during operation,a mechanical analysis of the key components(active rocker and slave rocker)was carried out to accommodate the load during leveling.Based on ANSYS software,a finite element simulation analysis was used to determine the maximum stress position of the active and slave rockers.Finally,to verify the accuracy of the above simulation analysis results and determine the influence rules of the lateral slope angle,longitudinal slope angle and loading quality on the abovementioned maximum stress,a physical model test bench of the attitude adjustment device was built.An orthogonal regression experiment was carried out with the maximum stresses of the active and slave rockers as the test indices.The experimental data were analyzed by Design-Expert 10 software,and the results show that the order of the primary and secondary factors influencing the maximum stress of the active rocker was the loading mass,lateral slope angle and longitudinal slope angle.The order of the factors influencing the maximum stress of the slave rocker was the longitudinal slope angle,lateral slope angle and loading mass.The active and slave rockers meet the strength requirements.This work provides technical support for the production of hill crawler tractor physical prototypes. | Jingbin Sun Chong Meng Yazhou Zhang Guoping Chu Yanjie Zhang Fuzeng Yang Zhijie Liu | 2020 | Information Processing in Agriculture2020,7,3: | 5 |
| 13 | A Preliminary Study on Fluid Inclusions and Mineralization of Xitieshan Sedimentary-Exhalative (SEDEX) Lead-Zinc Deposit显示文摘Xitieshan 铅锌存款在 Qaidam 盆的北边缘被定位, Qinghai 省,中国,并且开发了一个完全的海洋的 sedimentary-exhalative 系统。我们形成矿石的液体的初步的学习证明在从代表管子外形的改变的 stockwork 岩石的石英的液体包括有大量温度和咸度。强烈液体活动是 exhalative 系统的管子外形的特征。在在代表发泄近似的外形的厚床的云石招待的 unstratified 矿石身体附近的碳酸盐的液体包括在尺寸大并且有对高温度中等。他们代表 unerupted sub-seafloor 液体活动。在改变的 stockwork 岩石和碳酸盐中的液体有类似的 H2O-NaCl-CO2 系统,两个都属于 sedimentary-exhalative 系统。液体从管子外形移居到 unstratified 矿石身体。液体沸腾引起 CO2 蒸汽和液体 H2O 的分离。当液体移居进 unconsolidated 时,象进液体的海水的某参与一样的厚床的大理石, CO2 的逃跑,减少的温度和压力与形成矿石的材料的高、低的咸度和免职导致液体的 unmixing。二纯粹的液体在 unconsolidated 碳酸盐被套住,形成矿石的材料在 unconsolidated 碳酸盐被扔形成 sedimentary-exhalative 类型 unstratified 矿石身体。unstratified 矿石身体的形成矿石的温度直到显示在有一个巨大的形成矿石的潜力的高温度它的深。 | WANG Lijuan ZHU Xinyou WANG Jingbin DENG Jiniu WANG Yuwang ZHU Heping | 2008 | Acta Geologica Sinica(English Edition)2008,82,4: | 4 |
| 14 | Colloidal CsPbBr3 perovskite nanocrystal films as electrochemiluminescence emitters in aqueous solutions显示文摘 | Zhixiong Cai Feiming Li Wei Xu Shujun Xia Jingbin Zeng Shaogui He Xi Chen | 2018 | Nano Research2018,11,3: | 4 |
| 15 | Origin and Classification of Geothermal Water from Guanzhong Basin,NW China:Geochemical and Isotopic Approach显示文摘Combined with tectonic evolution,a multi-isotopic method(δD,δ18O,87Sr/86Sr and 14C)and hydrochemistry data have been used to study the origin and classification of geothermal water in the Guanzhong Basin.The study shows that geothermal water of Xianli terrace primarily came from northwest direction when accepting recharge.A small amount supply source of geothermal water in Xi’an City is from Qinling Mountain and the principal supply source comes from the west direction,but geothermal water of Chang’an District mainly accepts supply from Qinling Mountain.Based on geothermal environment is open or not,the degree of water-rock interaction,and the origin of geothermal water,geothermal water of the study area can be divided into four types:A,geothermal water of Gushi depression,perfect closed thermal environment and significant water-rock interaction,belonged to residual sedimentary water origin;B,geothermal water of Xianyang City,good closed environment and relatively significant water-rock interaction,belonged to residual sedimentary water origin mixed with fossil leaching water;C,geothermal water of Xi’an City,half closed environment and some water-rock interaction,belonged to fossil leaching water origin;D,geothermal water of Chang’an District,open environment and mixed with modern precipitation,belonged to fossil leaching water origin. | Zhiyuan Ma Xiucheng Li Huiju Zheng Jingbin Li Bei Pei Sen Guo Xuelian Zhang | 2017 | Journal of Earth Science2017,28,4: | 4 |
| 16 | Image detection and verification of visual navigation route during cotton field management period显示文摘In order to meet the actual operation demand of visual navigation during cotton field management period,image detection algorithm of visual navigation route during this period was investigated in this research.Firstly,for the operation images under natural environment,the approach of color component difference,which is applicable for cotton field management,was adopted to extract the target characteristics of different regions inside and outside cotton field.Secondly,the median filtering method was employed to eliminate noise in the images and realize smoothing process of the images.Then,according to the regional vertical cumulative distribution graph of the images,the boundary characteristic of the cotton seedling region was obtained and the central position of the cotton seedling row was determined.Finally,the detection of the candidate points cluster was realized,and the navigation route was extracted by Hough transformation passing the known point.The testing results showed that the algorithms could rapidly and accurately detect the navigation route during cotton field management period.And the average processing time periods for each frame image at the emergence,strong seedling,budding and blooming stages were 41.43 ms,67.83 ms,68.80 ms and 74.05 ms,respectively.The detection has the advantage of high accuracy,strong robustness and fast speed,and is simultaneously less vulnerable to interference from external environment,which satisfies the practical operation requirements of cotton field management machinery. | Jingbin Li Rongguang Zhu Bingqi Chen | 2018 | International Journal of Agricultural and Biological Engineering2018,11,6: | 4 |
| 17 | A comprehensive and up-to-date web-based interactive 3D emergency response and visualization system using Cesium Digital Earth: taking landslide disaster as an example显示文摘As with the fast advances in the technologies of big Earth data and information communication,Web-based 3D GIS system has come a long way from a few years ago.These advances reflect in many aspects of 3D GIS such as higher real-time performance,enhanced interactivity,more realistic 3D visualization effect and improved user interface.This paper aims to present a comprehensive and upto-date 3D Web GIS for Emergency Response using the current vue.js web application framework and the well-known Cesium APl,taking landslide disaster as an example.Building upon recent advances in WebGL technology,we developed a suite of enhanced 3D spatial analysis functions,including interactive route planning,instant text/image/video messaging being incorporated into both 3D WebGL page and mobile GIS applications,and progressive 3D construction and AR visualization using LiDAR and camera over local emergency network or internet.Moreover,professional functions such as landslide susceptibility mapping,landslide monitoring,spatial temporal contingency plan management,landslide information management,personnel and equipment management,and communication are all implemented and integrated in the 3D GIS system.Most of the functions of the system are implemented using open-source projects,which is beneficial to the development of the 3D GIS research community. | Zhiyuan Yang Jing Li Juha Hyppa Jianhua Gong Jingbin Liu Banghui Yang | 2023 | Big Earth Data2023,7,4: | 3 |
| 18 | Massive Sulphide Deposits Related to the Volcano-Passive Continental Margin in the Altay Region显示文摘The Devonian volcano-passive continental margin in southern Altay is a significant volcanogenic massive sulphide metallogenic belt. Acidic volcanism has been dominant on the inner side of the volcano-passive continental margin, i.e., near the old land, resulting in a Pb-Zn metallogenic sub-belt, in which the ore deposits are hosted by sedimentary rocks in volcanic series, as represented by the large Koktal Pb-Zn deposits. In the central part of the margin far away from the old land, bimodal volcanic formations are well developed, forming volcanics-hosted Cu-Zn metallogenic sub-belts, e.g., the large-scale Ashele Cu-Zn deposit. The Qiaoxiahala sub-belt on the outer side of the margin near the ocean ridge is located at the spreading central trough, where ophiolite suites are developed. This type of deposits is rich in gold and copper, similar to the Cyprus-type Fe-Cu-Au metallogenic sub-belt in metallogenic environment (represented by the Qiaoxiahala medium-scale Fe-Cu-Au deposit). From the old land to | WANG Jingbin DENG Jiniu ZHANG Jinhong QIN Kezhang | 1999 | Acta Geologica Sinica(English Edition)1999,73,3: | 3 |
| 19 | Ag@Au core/shell triangular nanoplates with dual enzyme-like properties for the colorimetric sensing of glucose显示文摘Due to the serious harm of diabetes to human health,development of sensitive assays for glucose level is of high significance for early prevention and treatment of diabetes.Currently,most conventional enzyme-based glucose sensors suffer from high cost and low stability due to the inherent defects of natural enzymes.Herein,we develop a pure nanozyme-based glucose detection method using Ag@Au core/shell triangular nanoplates(TNPs),which combines glucose oxidase(GOD)-and horseradish peroxidase(HRP)-like activities of the Au shell and inherent plasmonic properties of Ag TNPs.The sensing mechanism is based on the fact that the Au shell possessed GOD-like activity,enabling the oxidation of glucose to produce H2O2,which can further etch the silver core,leading to the decrease of absorbance at 800 nm and the color change from blue to colorless.Compared with the previous nanozymes-based glucose sensors,our method avoids the use of enzymes and organic chromogenic agent.Moreover,the stability of the Ag@Au core/shell TNPs is much better than that of Ag TNPs due to the protection by the coating of the Au shell.This method was successfully applied to the detection of urine samples from patients with diabetes,indicating its practical applicability for real sample analysis. | Ao Liu Mengmeng Li Jingxiang Wang Fan Feng Yu Zhang Zhiwei Qiu Yuzhu Chen Benjamin Edem Meteku Congying Wen Zifeng Yan Jingbin Zeng | 2020 | Chinese Chemical Letters2020,31,5: | 3 |
| 20 | Petrogenesis and Metallogenesis of the Niumaoquan Gabbroic Intrusion Associated with Fe-Ti Oxide Ores in the Eastern Tianshan, NW China显示文摘The Niumaoquan layered gabbroic intrusion is in the southern margin of the Central Asian Orogenic Belt in North Xinjiang, China, and hosts a Fe-Ti oxide deposit in its evolved gabbroic phases. In this paper, we report zircon U-Pb age, Sr-Nd-Hf isotopes, plagioclase chemistry, and whole-rock geochemistry of the Niumaoquan layered gabbroic intrusion. Zircon grains separated from an anorthosite sample analyzed by laser ablation inductively coupled plasma mass spectrometry yielded a concordia age of 314.7±0.74 Ma, indicating that the Niumaoquan ore-bearing gabbroic intrusion was emplaced during the Late Carboniferous. The olivine gabbro texture and plagioclase chemistry suggest that plagioclase was an early crystallized silicate phase that crystallized prior to olivine. Fractional crystallization and accumulation of plagioclase significantly controlled the evolution of the Niumaoquan gabbroic intrusion and contributed to the formation of anorthosite layers, causing metallogenic elements to become enriched in the residual melt. The Niumaoquan gabbroic intrusion is characterized by the enrichment of large ion lithophile elements and depletion of high field strength elements, positive zircon εHf(t) values(+2.1 to +12.2), positive εNd(t) values(+3.3 to +5.2), and low initial ^(87)Sr/^(86)Sr ratios(0.7039 to 0.7047), suggesting that the parental magma was produced by interactions between metasomatized lithospheric mantle and depleted asthenospheric melts at an early post-collision stage. The Fe-Ti oxide mineralization of the Niumaoquan intrusion benefited from interactions between depleted asthenospheric melts and lithospheric mantle, and fractional crystallization of abundant plagioclase and magnesian minerals. | SHI Yu WANG Yuwang WANG Jingbin XIE Hongjing MAO Qigui ZHAO Lutong LONG Lingli LI Dedong ZHOU Guochao | 2018 | Acta Geologica Sinica(English Edition)2018,92,5: | 3 |