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Petrogenetic contrastive studies on the Mesozoic early stage ore-bearing and late stage ore-barren granites from the southern Anhui Province

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Science China Earth Sciences 2017年第11期60卷 1920-1941页

作者： YAN Jun HOU TianJie wang AiGuo wang deen ZHANG DingYuan WENG wangFei LIU JianMin LIU XiaoQiang LI QuanZhong School of Resource and Environmental Engineering Hefei University of TechnologyHefei 230009China Nanjing Institute of Geology and Mineral Resources China Geological SurveyNanjing 210016China 332 Geological Team of Bureau of Geology and Mineral Resources Exploration of Anhui Province Huangshan 245000China

Yanshanian magmatisms are intensive in the southern Anhui Province and can be divided into early （152-137 Ma） and late （136-122 Ma） stages. A Yanshanian granitic zone was found to crop out along Qingshan to Changgai areas in the Ttmxi district in Field investigation which has a genetic link with molybdenum multiple metal mineralization. To be a representative syenitic granite in the southern Anhui Province, the Huangshan pluton has not been found so far to have any genetic link with mineralization. Zircon LA-ICP-MS dating indicate that the four granitic bodies from the Qingshan-Changgai zone have concurrent formed ages from 140~：4 to 141~2 Ma, belonging to the Yanshanian early stage magmatism. However, the Huangshan granite is dated to be 12912 Ma, belonging to the Yanshanian late stage magmatism. The Qingshan-Changgai granites show high SiO2 and K20 contents, low P205 contents and middle A12O3 contents and are high-K calc-alkaline series metaluminum I-type granite. These rocks are characterized by enrichments in the large ion lithophile elements and light rare earth elements （REE）, depletions in the high field-strength elements, and middle degree negative anomalies of Eu, geochemical features of arc or continent crustal derived magma affinities. These rocks have 87Sr/StSr（t） ratios from 0.7120 to 0.7125,εNd（t） values from -7.24 to -4.38 and zircon εHf（t） values of -4.4 to 6.7, similar to that of the coeval ore-bearing granodiorites in the southern Anhui Province. Integrated geochemical studies indicate that the Yanshanian ore-bearing granodiorites were formed by partial melting of the Meso-Neoproterozoic accreted thickened low crust. Meanwhile, the Qingshan-Changgai granites were formed through a AFC process of plagioclase＋amphibole＋Shangxi Group of magmas that formed the ore-bearing granodiorites. The Huangshan granites are characterized by high SiOz and K2O contents, moderate Al2O3 contents, seagull shape REE distributed pattern and distinct Eu negative abnormiti

关键词： Yanshanian Granite Low crust Ore-bearing magmatic rock The south Anhui Province Jiangnan orogenic belt

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Beam wavefront retrieval by convoluted spatial spectral benchmark

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Matter and Radiation at Extremes 2021年第4期6卷 24-30页

作者： Xuewei Deng Xiaoxia Huang deen wang Ying Yang Xin Zhang Dongxia Hu Laser Fusion Research Center China Academy of Engineering PhysicsP.O.Box 919Mianyang 621900China

We propose a method for retrieving a beam wavefront from its near-field intensity distribution after a 4f system by simply inserting a benchmark at the Fourier *** a convolution of the mark-blocked spatial frequency component and the original optical field with the 4f system,the separation between the focus of any sub-aperture and the benchmark can be determined to reconstruct the beam *** and experimental studies demonstrate the validity of this method,which has potential applications in real-time wavefront sensing.

关键词： system beam simply

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Non-collinear phase-matching sum-frequency generation based on boundary total reflection in bulk KDP

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Chinese Optics Letters 2019年第8期17卷 36-41页

作者： Yan Guan Fang wang Ying Yang deen wang Xin Zhang Qiang Yuan Wei Zhou Dongxia Hu Xuewei Deng Huaijin Ren Laser Fusion Research Center China Academy of Engineering Physics Mianyang 621900 China IFSA Collaborative Innovation Center Shanghai Jiao Tong University Shanghai 200240 China Institute o f Applied Electronics China Academy of Engineering Physics Mianyang 621900 China

Collinear phase-matching of sum-frequency generation(SFG) has been studied thoroughly previously, while non-collinear schemes are sometimes more flexible in application. However, this phase-matching type is more difficult to meet and control. We employ a convenient method to obtain harmonic generation in bulk potassium dihydrogen phosphate(KDP), using an incident wave vector and a reflected wave vector to create a triangle phase-matching relationship. With a simple, flexible set-up, we can observe 351 nm SFG, and the conversion efficiency is up to ~3.6% per reflection. Furthermore, we believe this approach has potential application value and improvement space.

关键词： SFG application KDP

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Variation in linear susceptibility tensor at crystal surface probed by linear Cherenkov radiation

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Chinese Optics Letters 2021年第3期19卷 74-79页

作者： Yan Guan Fang wang Ying Yang deen wang Xin Zhang Qiang Yuan Dongxia Hu Xuewei Deng Huaijin Ren Yuanlin Zheng Xianfeng Chen State Key Laboratory of Advanced Optical Communication Systems and Networks School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621900China IFSA Collaborative Innovation Center Shanghai Jiao Tong UniversityShanghai 200240China Institute of Applied Electronics China Academy of Engineering PhysicsMianyang 621900China Collaborative Innovation Center of Light Manipulation and Applications Shangdong Normal UniversityJinan 250358China

At the surfaces of crystals, linear susceptibility tensors would differ from their counterparts in the interior of the bulk crystal. However, this phenomenon has not been shown in a visible way yet. In previous researches, numerous types of nonlinear Cherenkov radiation based on different materials have been studied, while linear Cherenkov radiation is barely reported. We experimentally prove the generation of linear Cherenkov radiation on the potassium dihydrogen phosphate(KDP) crystal surface and theoretically analyze its phase-matching scheme. In our study, o-polarized light and e-polarized light can mutually convert through the linear Cherenkov process. According to this result, we figure out new nonzero elements at off-diagonal positions in the linear susceptibility tensor matrix at crystal surfaces, compared with the normal form of a bulk KDP.

关键词： linear susceptibility Cherenkov-type harmonic generation crystal boundary

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安徽绩溪伏岭岩体隆升时代的磷灰石裂变径迹证据

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地质论评 2009年第3期55卷 385-394页

作者：郑勇余心起王德恩汪诚中国地质大学地质过程与矿产资源国家重点实验室北京100083 中国科学院地质与地球物理研究所北京100029 安徽省地质勘查开发局332地质队安徽黄山245000 黄山世界地质公园规划土地处安徽黄山245800

安徽绩溪伏岭岩体位于安徽省南部、黄山花岗岩体的东部。伏岭岩体裂变径迹(AFT)热年代分布于51±5～68±7Ma之间,围限径迹长度为11.9～12.9μm。岩体形成之后,所在山系经历了速率波动较大的隆升过程,至55Ma期间为一加速隆升过程,到55Ma... 详细信息

安徽绩溪伏岭岩体位于安徽省南部、黄山花岗岩体的东部。伏岭岩体裂变径迹(AFT)热年代分布于51±5～68±7Ma之间,围限径迹长度为11.9～12.9μm。岩体形成之后,所在山系经历了速率波动较大的隆升过程,至55Ma期间为一加速隆升过程,到55Ma时速度达到最大的73mm/ka;随后速度减缓,54Ma左右时的平均抬升速率为60mm/ka;54～51Ma间又是一个快速加速隆升时期,到51Ma时,速度达到70mm/ka。研究区具有三个主要的冷却剥露阶段:130～116Ma左右,冷却速率约为1.34℃/Ma;70～60Ma左右,进入第二个较为快速冷却阶段,冷却速率约为2.5℃/Ma;在7～8Ma左右发生突然加剧冷却事件,持续至今,速率达到8℃/km。总体来说,伏岭岩体经历了速率逐渐增加的冷却过程。由于黄山山体与伏岭岩体在大地构造位置、岩性特征及侵入时间上具有很大的相似性,二者的隆升时代、速率以及抬升剥蚀量是大致相当的。

关键词：裂变径迹年龄隆升速率冷却剥露历史伏岭岩体

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1178 J,527 nm near diffraction limited laser based on a complete closed-loop adaptive optics controlled off-axis multi-pass amplification laser system

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High Power Laser Science and Engineering 2021年第2期9卷 149-160页

作者： deen wang Xin Zhang Wanjun Dai Ying Yang Xuewei Deng Lin Chen Xudong Xie Dongxia Hu Feng Jing Zeping Yang Qiang Yuan Xiaofeng Wei Qihua Zhu wanguo Zheng Xiaomin Zhang Lei Huang Key Laboratory of Photonic Control Technology(Tsinghua University) Ministry of EducationBeijing 100084China State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China Research Center of Laser Fusion CAEPMianyang 621900China Institute of Optics and Electronics Chinese Academy of SciencesChengdu 610209China

A 1178 J near diffraction limited 527 nm laser is realized in a complete closed-loop adaptive optics(AO)controlled off-axis multi-pass amplification laser *** from a fiber laser and amplified by the pre-amplifier and the main amplifier,a 1053 nm laser beam with the energy of 1900 J is obtained and converted into a 527 nm laser beam by a KDP crystal with 62%conversion efficiency,1178 J and beam quality of 7.93 times the diffraction limit(DL).By using a complete closed-loop AO configuration,the static and dynamic wavefront distortions of the laser system are measured and *** correction,the diameter of the circle enclosing 80%energy is improved remarkably from 7.93DL to *** focal spot is highly concentrated and the 1178 J,527 nm near diffraction limited laser is achieved.

关键词： kilojoule near diffraction limit 527 nm X-ray

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高速流场下凸台周围的气动光学效应

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强激光与粒子束 2022年第3期34卷 97-101页

作者：李超王德恩袁强邓学伟中国工程物理研究院激光聚变研究中心四川绵阳621900

针对高速流场下凸台周围的气动光学效应,对不同马赫数下的三种凸台形状周围的流场进行仿真计算,计算得到流场的密度变化,计算了光线经流场传输后的光程差。仿真结果表明:随马赫数增大,光程差逐步增大;同等条件下,不同出射角度对应的光... 详细信息

针对高速流场下凸台周围的气动光学效应,对不同马赫数下的三种凸台形状周围的流场进行仿真计算,计算得到流场的密度变化,计算了光线经流场传输后的光程差。仿真结果表明:随马赫数增大,光程差逐步增大;同等条件下,不同出射角度对应的光程差不同,凸台存在强烈的尾流区域,从而导致较大的光程差;在马赫数达到跨音速时,凸台顶端也会产生较大的光程差;曲率较小的凸台结构对周围流场的影响较小。

关键词：气动光学计算流体力学数值仿真光学窗口密度场光程差

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浅谈小学英语口语教学情境创设模式

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英语教师 2021年第22期21卷 53-55,58页

作者：王德恩浙江省杭州市良渚实验学校浙江杭州310000

阐述小学英语口语教学现状及教学的重点和难点。分析情境创设对小学英语口语教学的重要价值。结合教学实例,提出五种情境创设的类型和具体的应用方法,即创设游戏情境、创设仿真情境、创设表演情境、创设故事情境和创设生活情境。认为利... 详细信息

阐述小学英语口语教学现状及教学的重点和难点。分析情境创设对小学英语口语教学的重要价值。结合教学实例,提出五种情境创设的类型和具体的应用方法,即创设游戏情境、创设仿真情境、创设表演情境、创设故事情境和创设生活情境。认为利用这些方法,能帮助学生快速进入语言学习,提升学习效果,培养语言能力。

关键词：情境创设小学英语口语教学

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高度演化的黄山A型花岗岩:对扬子克拉通东南部中生代岩石圈减薄的约束?

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地质学报 2009年第2期83卷 247-259页

作者：薛怀民汪应庚马芳汪诚王德恩左延龙中国地质科学院地质研究所北京100037 安徽省地质矿产局332地质队安徽黄山245000 北京大学地球与空间科学学院北京100871 黄山世界地质公园规划土地处安徽黄山245000

黄山花岗岩以高硅(SiO2>75%)、低钙(CaO=0.51%～0.86%)、贫镁、相对富碱和高FeO*/MgO比值(8.28～87.20)为特征。微量元素地球化学性质上表现为强烈亏损Ba、Sr、Eu(δEu=0.01～0.13),富集Rb、Th和U,高场强元素Zr、Nb、Y和Ga的含量也较高... 详细信息

黄山花岗岩以高硅(SiO2>75%)、低钙(CaO=0.51%～0.86%)、贫镁、相对富碱和高FeO*/MgO比值(8.28～87.20)为特征。微量元素地球化学性质上表现为强烈亏损Ba、Sr、Eu(δEu=0.01～0.13),富集Rb、Th和U,高场强元素Zr、Nb、Y和Ga的含量也较高。主量和微量元素均表现为A-型花岗岩的特征。该花岗岩最奇妙的特征是稀土元素分馏模式表现出罕见的"四素组效应"(tetrad effect),一些微量元素的行为也表现出不受离子电荷和半径的控制(non-CHARAC行为),如异常低的K/Rb和Zr/Hf比值以及醒目的高K/Ba比值,该特征仅见于与热液发生过强烈相互作用的高度演化的岩浆中。与钙碱性的太平岩体相比,高度演化的具A-型花岗岩特征的黄山岩体具有相对较低的87Sr/86Sr初时值(0.707,而太平岩体为0.710)和较高的εNd(t)值(-4.45～-4.87,而太平岩体为-6.21～-6.40),二阶段模式年龄(TDM-2)为1.24～1.33Ga,明显年轻于扬子克拉通内不同时期花岗岩所普遍显示的约2.1Ga的模式年龄值,也小于太平岩体的模式年龄(1.44～1.45Ga),指示黄山岩体的母岩浆中包含有较多新加入的软流圈地幔物质。我们认为,由钙碱性的太平岩体转变为碱性的黄山岩体所指示的是扬子克拉通东南部中生代岩石圈的减薄事件。

关键词：四素组效应 A型花岗岩地球化学岩石圈减薄黄山中生代

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Recent research progress of laser plasma interactions in Shenguang laser facilities

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Matter and Radiation at Extremes 2019年第5期4卷 38-49页

作者： Tao Gong Liang Hao Zhichao Li Dong Yang Sanwei Li Xin Li Liang Guo Shiyang Zou Yaoyuan Liu Xiaohua Jiang Xiaoshi Peng Tao Xu Xiangming Liu Yulong Li Chunyang Zheng Hongbo Cai Zhanjun Liu Jian Zheng Zhebin wang Qi Li Ping Li Rui Zhang Ying Zhang Fang wang deen wang Feng wang Shenye Liu Jiamin Yang Shaoen Jiang Baohan Zhang Yongkun Ding Research Center of Laser Fusion China Academy of Engineering PhysicsMianyangSichuan 621900People’s Republic of China Institute of Applied Physics and Computational Mathematics Beijing 100088People’s Republic of China CAS Key Laboratory of Geospace Environment and Department of Engineering and Department of Engineering and Applied Physics University of Science and Technology of ChinaHefeiAnhui 230027People’s Republic of China

Wereport experimental research on laser plasma interaction(LPI)conducted in Shenguang laser facilities during the past ten *** research generally consists of three phases:(1)developing platforms for LPI research in mm-scale plasma with limited drive energy,where both gasbag and gas-filled hohlraum targets are tested;(2)studying the effects of beam-smoothing techniques,such as continuous phase plate and polarization smoothing,on the suppression of LPI;and(3)exploring the factors affecting LPI in integrated implosion experiments,which include the laser intensity,gas-fill pressure,size of the laser-entrance hole,and interplay between different beam *** obtained in each phase will be presented and discussed in detail.

关键词： laser polarization smoothing

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