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西藏班公湖-怒江缝合带西段洞错蛇绿岩中的辉长岩锆石U-Pb年代学及地质意义

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地球科学 2018年第4期43卷 1070-1084页

作者：武勇陈松永秦明宽郭冬发郭国林张财杨经绥核工业北京地质研究院中核集团铀资源勘查实验室北京100029 地幔研究中心国土资源部深地动力学重点实验室中国地质科学院地质研究所北京100037 东华理工大学地球科学学院江西南昌330013 山西省地质博物馆山西太原030024

洞错蛇绿岩位于班公湖-怒江缝合带西段阿里地区,前人对其空间展布、构造环境及成因有过一定的探讨,但研究程度薄弱.选择洞错蛇绿岩中的辉长岩为研究对象,对其开展详细的岩相学、地球化学、年代学等工作,解读洋盆的形成时间及构造环境.... 详细信息

洞错蛇绿岩位于班公湖-怒江缝合带西段阿里地区,前人对其空间展布、构造环境及成因有过一定的探讨,但研究程度薄弱.选择洞错蛇绿岩中的辉长岩为研究对象,对其开展详细的岩相学、地球化学、年代学等工作,解读洋盆的形成时间及构造环境.结果表明,辉长岩与N-MORB相比具有较高的Mg#,低K、Na、P和Ti的元素特征,亏损Hf、Zr、Nb等高场强元素(HFSE),具有轻稀土亏损型配分模式,表明可能源于N-MORB型亏损地幔源区.地球化学元素研究表明辉长岩岩浆源自亏损的尖晶石二辉橄榄岩~30%部分熔融,可能形成于与洋内俯冲相关的岛弧或者弧前构造环境,属于SSZ型蛇绿岩.辉长岩锆石的U-Pb测年指示其结晶年龄为2.2.4.8Ma(MSWD=0.5,n=2.),代表了辉长岩的形成年龄,佐证了洞错蛇绿岩形成于晚三叠世,表明班公湖-怒江特提斯洋盆从晚三叠世开始存在洋内俯冲消减地质作用.

关键词：蛇绿岩辉长岩构造环境锆石U-Pb年龄班公湖-怒江缝合带地质年代学

The Zoulang Nanshan Caledonian Subduct ion Complex in the Northern Qilian Mountains and Its Dynamics

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Acta Geologica Sinica(English Edition) 1994年第3期68卷 225-241页

作者： Xu Zhiqin, Xu Huifen, zhang Jianxin, Li Haibing, Zhu Zhizhi, Qu Jingchuan,institute of Geology, {2. Academy of geological Sciences, beijingchen Daizhang, chen Jinlu, china University of Geosciences, beijingand yang KaichunNo. 2.Q ilian geological Party, Bureau of Geology and Mineral Resources of Q inghai Province, Q ilian County, Q inghai chinese Academy of {1. Sciences Beijing China

The front of the Zoulang Nanshan Caledonian volcanic island arc zone in the northern Qilian Mountains is a forearc accretionary terrane, composed of multiple accretionary volcanic island arcs, flysch accretionary wedges,high-pressure metamorphosed detachment zones and remnants of ophiolites. It resulted from the northeastward subduction of the Early Palaeozoic Qilan oceanic crust beneath the Alxa block. High-pressure metamorphism, which occurred during the subduction, progressed through three stages: the initial stage of medium T-high P,the main stage of temperature decrease and pressure increase, and the lag stage of pressure decrease and temperature increase. Finally the paper presents a retrotrench subduction dynamic model indicative of northward subduction of the central Qilian block and southward accretion of the Alxa block during the period of 450-500 Ma.

关键词： subduction complex accretionary terrane multiple structure retrotrench subduction dynamics

A Localization Method of High Energy Transients for All-sky Gamma-ray Monitor

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Research in Astronomy and Astrophysics 2024年第10期24卷 25-35页

作者： Yi Zhao Wangchen Xue Shaolin Xiong Qi Luo Yuanhao Wang Jiacong Liu Heng Yu Xiaoyun Zhao Yue Huang Jinyuan Liao Jianchao Sun Xiaobo Li Qibin Yi Ce Cai Shuo Xiao Shenglun Xie Chao Zheng Yanqiu {1. chenwei Wang wenjun Tan Zhiwei Guo Chaoyang Li Zhenghua An Gang chen Yanqi Du Min Gao Ke Gong Dongya Guo Jiang He Jianjian He Bing Li Gang Li Xinqiao Li Jing Liang Xiaohua Liang Yaqing Liu Xiang Ma Rui Qiao Liming Song Xinying Song Xilei Sun Jin Wang Ping Wang Xiangyang wen Hong Wu Yanbing Xu Sheng yang Dali {1. Fan {1. Hongmei {1. Peng {1. Shu {1. Zhen {1. Shijie Zheng Keke {1. Xingbo Han Haiyan Wu Hu Tai Hao Geng Gaopeng Lu Wei Xu Fanchao Lyu Hongbo {1. Fangjun Lu Shuangnan {1. Department of Astronomy Beijing Normal UniversityBeijing 100875China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of Sciences Beijing 100049China School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China College of Physics Hebei Normal UniversityShijiazhuang 050024China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550001China School of Physics and Electronic Science Guizhou Normal UniversityGuiyang 550001China institute of Astrophysics Central China Normal UniversityWuhan 430079China College of physics Sciences Technology Hebei UniversityBaoding 071002China Physics and Space Science College China West Normal UniversityNanchong 637002China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China College of Electronic and information Engineering Tongji UniversityShanghai 201804China Innovation Academy for Microsatellites of chinese Academy of Sciences Shanghai 201304China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Electronic Information School Wuhan UniversityWuhan 430072China Key Laboratory of Transportation Meteorology of china Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210000China Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

Fast and reliable localization of high-energy transients is crucial for characterizing the burst properties and guiding the follow-up *** based on the relative counts of different detectors has been widely used for all-sky gamma-ray *** are two major methods for this count distribution localization:χ^(2.minimization method and the Bayesian *** we propose a modified Bayesian method that could take advantage of both the accuracy of the Bayesian method and the simplicity of the χ^(2.*** comprehensive simulations,we find that our Bayesian method with Poisson likelihood is generally more applicable for various bursts than the χ^(2.method,especially for weak *** further proposed a location-spectrum iteration approach based on the Bayesian inference,which could alleviate the problems caused by the spectral difference between the burst and location *** method is very suitable for scenarios with limited computation resources or timesensitive applications,such as in-flight localization software,and low-latency localization for rapidly follow-up observations.

关键词： methods:data analysis methods:analytical (stars:)gamma-ray burst:general

Study on the Total Synthesis of Hainanolide (Ⅱ)──An Unexpected Hydroperoxide Containing Tricyclic Skeleton

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chinese Chemical Letters 1997年第1期8卷 15-16页

作者： Lu Yan zhang {1. Qian {2. Shi Zhi chen Liang HUANG(institute of Materia Medica, chinese Academy of Medical Sciences,Peking Union Medical College,beijing,1.0050) institute of Materia Medica Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

An unexpected compound, hydroperoxide (4) formed from (3), the exo-cycloaddition product, which was synthesized through the Lewis acid catlyzed intramolecular Diels-Alder (IMDA) reaction. Its structure was confirmed b... 详细信息

关键词： ppm An Unexpected Hydroperoxide Containing Tricyclic Skeleton Study on the Total Synthesis of Hainanolide

Study on Chromosome Doubling for Haploid Produced by Wheat×Maize Crossing

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Agricultural Sciences in china 2002年第5期1卷 486-490页

作者： chen Xin-min, {1. {2.-xiang, GUI Shu-Ian and chen Xiao(institute of Crop Breeding and Cultivation , chinese Academy of Agricultural Sciences , beijing 100081 , P. R . china) institute of Crop Breeding and Cultivation Chinese Academy of Agricultural Sciences Beijing 100081 P. R. China

There is no spontaneous chromosome doubling in haploid plants produced by wheat X maize crossing. In order to obtain doubled haploid, two chromosome doubling methods were used. Results showed that: After adding colchicine solution directly into a medium for young embryos that had been cultured 7 days, frequencies of embryo germination in colchicine concentrations of 50mg/L, 1.0mg/L and 2.0mg/L were 32.1. , 2..4% and 1..3% , respectively, and frequencies of chromosome doubling were 85.3% , 1.0% and 50.0% , respectively. But in the control without colchicine, the frequency of embryo germination was 67.4% and no seed was setting. As the time of colchicine treatment increased from 2. to 72.hours, the frequency of embryo germination was reduced, and 2. hours had better results. After soaking seeding crowns and roots with colchicine solution of 500mg/L, 750mg/L and 1.000mg/L for 5 hours, the frequencies of doubling were 89.6%, 76.0% and 73.3%, respectively. By soaking crowns and roots of strong seedings with 500mg/L colchicine solution, the frequency and efficiency of doubling were 98.2. and 93.2. , respectively.

关键词： Wheat X maize crosses Haploid Doubled haploid

Research on the Willingness to Accept Compensation and Compensation Sharing of Returning Land for Farming to Forestry in zhangjiakou and {1.gde Region

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Meteorological and Environmental Research 2011年第5期2卷 41-44页

作者： WANG Yan-xia1.chen Xu-dong1.{1. Su-juan1.BAI Jie2.{1. Yi-wen3 1.institute of Geographical Science,Hebei Academy of Science,Shijiazhuang 05001.,china 2.Computer Department,Hebei Vocational College of Politics and Law,Shijiazhuang 050081.china 3.College of Resources and Environment Science,Hebei Normal University,Hebei Key Laboratory of Environmental Change and Ecological Construction,Shijiazhuang 05001.,china

[Objective] The aim was to study the willingness to accept compensation and compensation sharing of returning land for farming to forestry in zhangjiakou and {1.gde region.[Method] Based on the investigation of farmers’ willingness to accept ecological compensation in zhangjiakou and {1.gde region,farmers’ willingness to accept compensation was quantized,and the calculation model of sharing rate of ecological compensation was established,finally the sharing rate of ecological compensation was calculated choosing water supply quantity as reference.[Result] Farmers’ willingness to accept compensation in zhangjiakou and {1.gde region was 2.740.5 yuan/(hm2.a),and returned farmland area was 42. 700 hm2.in 2.08,so the willingness to accept ecological compensation was up to 1.1.8 billion yuan/*** addition,the ecological compensation sharing rate of government was 37.60% in beijing,42.75% in Tianjing and 1..64% in Tangshan,and their ecological compensation funds were 443,504 and 2.1.million yuan,respectively.[Conclusion] The study could provide important foundation for the establishment of ecological compensation standard and implementation of ecological compensation in zhangjiakou and {1.gde region.

关键词： zhangjiakou chengde Ecological compensation Willingness to accept compensation Sharing rate of compensation china

土库曼斯坦南约洛坦气田复杂盐膏层钻井液技术

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天然气工业 2011年第7期31卷 55-58,107-108页

作者：杨晓冰蔺志鹏陈鑫文虎张长庚川庆钻探工程有限公司钻采工程技术研究院长庆分院 710021 低渗透油气田勘探开发国家工程实验室

土库曼斯坦南约洛坦气田的主力产层位于盐膏层之下,曾因盐膏层地质情况复杂和工程事故频发而一度不能钻达设计井深。该区存在一系列的钻井难题:①随巨厚盐膏层而来的"盐水侵"、"钙镁侵"等导致钻井液受到严重污染;②地层疏松和高压气体... 详细信息

土库曼斯坦南约洛坦气田的主力产层位于盐膏层之下,曾因盐膏层地质情况复杂和工程事故频发而一度不能钻达设计井深。该区存在一系列的钻井难题:①随巨厚盐膏层而来的"盐水侵"、"钙镁侵"等导致钻井液受到严重污染;②地层疏松和高压气体所造成的"气侵"使井漏与溢流(井涌)并存;③井下高温、高压环境使钻井液性能变差;④高密度钻井液因其固有的高固相所造成的流变性控制难。为此,中国石油天然气集团公司川庆钻探工程有限公司研发并使用了以体系组成简单且高效、配制有序且逐步放大量为特点,以"护胶为主、增强抑制性"为维护处理技术思路的高密度饱和盐水聚磺钻井液,其组成为:基础材料类(膨润土、烧碱、纯碱、NaCl、KCl等)+聚合物类(PAC、FA367、XY-2.、JT888等)+磺化材料类(SMP-2.SMC、SPNH、JNJS-2.0、SMT、FT-1.)+加重剂(重晶石)+辅助材料类(润滑剂、消泡剂、盐重结晶抑制剂等)。此举,提高了高固相含量钻井液体系的综合性能。该钻井液应用于现场,克服了各种因地质因素所造成的钻井液污染破坏问题,突破了该气田钻井技术"瓶颈",成功解决了该气田盐膏层井段所惯存的蠕动、缩径、垮塌等技术难题,确保了该区1.口天然气探井盐膏层钻井任务的安全、顺利完成。

关键词：土库曼斯坦南约洛坦气田晚侏罗世盐膏层高密度钻井液高温高压污染维护处理川庆钻探工程有限公司

A NEW CALCULATION METHOD FOR GAS-WELL LIQUID LOADING CAPACITY

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Journal of Hydrodynamics 2010年第6期22卷 823-828页

作者： WANG Yi-wei zhang Shi-{1.g YAN Jin {1. wen-bin Ministry of Education Key Laboratory of Petroleum Engineering China University of Petroleum Beijing 102249 Petroleum Exploration and Production Research institute S1NOPEC Beijing 100083 China Sinochem Petroleum Exploitation and Production Co. Ltd Beijing 100031 china

This article proposes a new model for calculating the gas-well liquid loading capacity, which is critical to an accurate prediction of gas well production. Based on analysis of flow regime during the gas well production with water, which is regarded as many single particles in the model, with the shape of particles being assumed as disk-like ellipsoid instead of traditional sphere and changing according to the forces exerted on them, the influences of non-Darcy flow, compressibility, and non-sphere shape on friction factor are analyzed. The differences between the new model and other models are discussed and a new formula for calculating the critical flow rate is obtained. The calculation results and a comparison with other two models show that the new model is more consistent with the actual situation and is practical.

关键词： gas well accumulated liquid drag factor critical flow rate

东非被动大陆边缘盆地演化及大气田形成主控因素:以鲁武马盆地为例

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地学前缘 2018年第2期25卷 24-32页

作者：张光亚刘小兵赵健温志新张荻萩王兆明张磊马锋陈曦中国石油勘探开发研究院北京100083 中国石油经济技术研究院北京100724

东非被动大陆边缘盆地近年来发现了一系列大气田,主要分布于鲁武马盆地,其可采储量达3.8×1.1. m3。盆地经历了卡鲁裂谷期、马达加斯加裂谷期和马达加斯加漂移期等3期构造演化。其中,马达加斯加裂谷期形成下侏罗统—中侏罗统湖相-滨浅... 详细信息

东非被动大陆边缘盆地近年来发现了一系列大气田,主要分布于鲁武马盆地,其可采储量达3.8×1.1. m3。盆地经历了卡鲁裂谷期、马达加斯加裂谷期和马达加斯加漂移期等3期构造演化。其中,马达加斯加裂谷期形成下侏罗统—中侏罗统湖相-滨浅海相烃源岩,于早白垩世进入生油门限,晚白垩世达到生油高峰,渐新世进入生气窗。受马达加斯加漂移期东非陆上断裂系统活动影响,大量富砂沉积物以块体搬运和深海滑塌方式向深水区堆积,形成了盆地内面积广、厚度大、岩性相对均一且物性良好的超大型深水重力流沉积砂体;漂移期海相泥页岩则为良好的区域性盖层。东非陆上早期隆升和三角洲进积作用使鲁武马盆地形成重力滑动和盐底辟构造,渐新统—上新统内形成东非被动陆缘正断层带(EANFZ)和逆冲断层带(EATFZ),下伏中—下侏罗统烃源岩生成油气沿正断层和深水区逆冲断层向上运移,聚集于构造-岩性-地层、构造圈闭中,形成大气田。

关键词：盐底辟 Davie断裂带(DFZ) 卡鲁裂谷期马达加斯加裂谷期马达加斯加漂移期东非被动陆缘正断层带(EANFZ) 东非被动陆缘逆冲断层带(EATFZ)