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Science china Earth sciences 2010年第5期53卷 657-664页

作者： zhai qingguo1 wang jun1, li cai2 & su li3.1 institute of geology, chinese academy of geological sciences, beijing 1.003., china 2 College of Earth sciences, Jilin University, Changchun 130061, china 3 The geological Laboratory Center and State Key Laboratory of geological Processes and Mineral Resources, china University of Geo- sciences, beijing 100083, china 1. institute of geology Chinese Academy of Geological Sciences Beijing 100037 China2. College of Earth Sciences Jilin University Changchun 130061 China3. The Geological Laboratory Center and State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China

Metabasites consisting of metamorphic ultra-mafic rocks, cumulate gabbro, gabbro (diabase), basalt, and plagiogranite are exposed at the Taoxinghu area in central Qiangtang, northern Tibetan Plateau. Zircon SHRIMP U-Pb dating for the cumulate gabbro yields a weighted mean age of 467±4 Ma, which is the oldest and most reliable magmatic age in this area. Zircon 176Hf/177Hf ratios range from 0.282615 to 0.282657, with εHf(t) values of 5.02±0.28, indicating that the cumulate gabbro was mainly derived from the depleted mantle. In addition, geochemical data of metabasites suggest that they have similar characteristics to those in the mid-ocean ridge basalts (MORB). The Taoxinghu metabasites may represent the fragment of Early Paleozoic ophiolite in the "Central Uplift" of the Qiangtang, northern Tibetan Plateau.

关键词： Qiangtang cumulate gabbro SHRIMP dating Hf isotope

Study on the Tectonic Setting for the Ophiolites in Xigaze, Tibet

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Acta Geologica Sinica(English Edition) 2013年第2期87卷 395-425页

作者： BAO Peisheng su li wang jun zhai qingguo institute of geology Chinese Academy of Geological Sciences institute of Earth sciences China University of Geosciences

The Xigaze ophiolite is located in the middle section of the Yarlung Zangbo River ophiolite belt and includes a well-preserved sequence section of seven ophiolite blocks. The relatively complete ophiolitic sequence sections are represented by Jiding, Dejixiang, Baigang, and Dazhuqu ophiolites and consist of three-four units. The complete ophiolite sequence in order from the bottom to top consists of mantle peridotite, cumulates, sheeted sill dike swarms, and basic lavas±radiolarian chert. These cumulates are absent in the remaining blocks of Dejixiang and Luqu. The age of radiolaria in the radiolarian chert is Late Jurassic-Cretaceous. The basalt and ultramafic rock of the ophiolite also are overlaid by Tertiary liuqu conglomerate, which contains numerous pebble components of ophiolite, indicating that the Tethys Ocean began to close at the end of Cretaceous Period. The isotopic data of gabbro, diabase, and albite granite in the Xigaze ophiolite are approximately 126-139 Ma, which indicates that the ophiolite formed in the Early Cretaceous. The K-Ar age of amphibole in garnet amphibolite in the ophiolite melange is 81 Ma, indicating that tectonic ophiolite emplacement occurred at the end of Late Cretaceous. Research in petrology, petrological chemistry, mineralogy, and geochemistry of volcanic rocks and dikes of the Xigaze ophiolite indicate the following characteristics：（1） They are mainly composed of basalt, basaltic andesite, dolerite, and diabase and are characterized by high TiO2 （0.7-1.47%）, low MgO （mostly less than 8%）, and low SiO2 （mostly less than 53%）. （2） The volcanic rocks and dikes of the Xigaze ophiolite show light rare earth element （LREE）-depleted rare earth element （REE） patterns. （3） The spider diagrams of the volcanic rocks and dikes of the Xigaze ophiolite exhibit liLE depletion relative to high-field-strength element （HFSE） patterns with left oblique features. （4） No protogenetic olivine and clinoenstatite was detected. （5） Some dikes show lo

关键词： MORB boninite series rocks forearc extention subduction initiation Xigaze ophiolite

Origin of the Zedang and Luobusa Ophiolites, Tibet

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Acta Geologica Sinica(English Edition) 2014年第2期88卷 669-698页

作者： BAO Peisheng su li wang jun zhai qingguo institute of geology Chinese Academy of Geological Sciences institute of Earth sciences China University of Geosciences

The Zedang and Luobusa ophiolites are located in the eastern section of the Yalung Zangbo ophiolite belt,and they share similar geological tectonic setting and ***,an understanding of their origins is very important for discussion of the evolution of the Eastern Tethys *** is no complete ophiolite assemblage in the Zedang *** Zedang ophiolite is mainly composed of mantle peridotite and a suite of volcanic rocks as well as siliceous rocks,with some blocks of *** mantle peridotite mainly consists of Cpx-harzburgite,harzburgite,some lherzolite,and some dunite.A suite of volcanic rocks is mainly composed of caic-aikaline pyroclastic rocks and secondly of tholeiitic pillow lavas,basaltic andesites,and some boninitic rocks with a lower TiO2 content （TiO2 ＜ 0.6％）.The pyroclastic rocks have a LREE-enriched REE pattern and a liLE-enriched （compared to HFSE） spider diagram,demonstrating an island-arc *** tholeiitic volcanic rock has a LREE-depleted REE pattern and a liLE-depleted （compared to HFSE） spider diagram,indicative of an origin from *** boninitic rock was generated from fore-arc *** Luobusa ophiolite consists of mantle peridotite and mafic-ultramaflc cumulate units,without dike swarms and volcanic *** mantle peridotite mainly consists of dunite,harzburgite with low-Opx （Opx ＜ 25％）,and harzburgite （Opx ＞ 25％）,which can be divided into two facies *** upper is a dunite-harzburgite （Opx ＜ 25％） belt,containing many dunite lenses and a large-scale chromite deposit with high Cr203; the lower is a harzburgite （Opx ＞25％） belt with small amounts of dunite and *** Luobusa mantle peridotite exhibits a distinctive vertical zonation of partial melting with high melting in the upper unit and low melting in the *** mantle peridotites are highly depleted,with a characteristic U-shaped REE pattern peculiar to fore-arc *** Luobusa cumulates are composed of wehrlite and olivine-pyroxe

关键词： Zedang ophiolite Luobusa ophiolite MORB island arc fore-arc extension subduction initiation

SHRIMP U-Pb dating and Hfisotopic analyses of zircons from the mafic dyke swarms in central Qiangtang area,Northern Tibet

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chinese Science Bulletin 2009年第21期54卷 2279-2285页

作者： zhai qingguo li cai wang jun JI ZhanSheng wang Yong institute of geology Chinese Academy of Geological Sciences Beijing 100037 China College of Earth sciences Jilin University Changchun 130061 China

In the "Central Uplift" of Qiangtang,Northern Tibet,a large scale of mafic dyke swarms extended in E-W *** SHRIMP U-Pb dating on two representative samples of diabase dyke yield weighted mean ages of 284 ± 3 Ma and 302 ± 4 Ma,respectively,suggesting they emplaced in the Late Carboniferous to Early *** 176Hf/177Hf ratios range from 0.282852 to 0.283041,with εHf(t) values of +12.1 to +12.2 and Hf modal(TDM) ages of ～440―460 *** data indicate that these mafic dykes were mainly derived from the depleted *** addition,geochemical data suggest that these mafic dyke swarms are ofintra-plate ***,the mafic dyke swarms represent products during the extensional process associated with the opening of the Paleo-Tethys Ocean in the area.

关键词：锆石SHRIMP 镁铁质岩墙群同位素分析中部地区羌塘 Pb 藏北平均年龄

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua cai Wenyong cai Wujun cai Yijian cai Yizhou cai Yuchen cai Haiying cai Huacheng cai Lorenzo Calibbi junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing beijing Computational Science Research Center Beijing beijing Conveyi LTD Beijing beijing Glass Research institute Co. LtdBeijing beijing institute of Technology Beijing beijing Normal University Beijing Brown University ProvidenceRI Budker institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china institute of Atomic Energy Beijing china Jiliang University HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china University of Geosciences Beijing china University of Geosciences WuhanHubei china University of Mining and Technology XuzhouJiangsu china West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint institute for Nuclear Research(DLNP JINR) Dubna East china University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

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华南陆缘晚中生代造山及其地质意义

中国地质 2013年第1期40卷 86-105页

作者：崔建军张岳桥董树文江博明徐先兵马立成李建华苏金宝李勇中国地质科学院地质力学研究所北京100081 台湾大学地球科学系台北10699 中国地质大学地球科学学院武汉430074

长乐—南澳带位于华南大陆的东南缘,是揭示晚中生代古太平洋板块与欧亚大陆相互作用和华南陆缘地质演化的一条关键性构造带。该构造带的T3-J含煤地层不整合下伏于下白垩统南园组之下,或以角闪岩相包体形式赋存于晚侏罗—早白垩世片麻状... 详细信息

长乐—南澳带位于华南大陆的东南缘,是揭示晚中生代古太平洋板块与欧亚大陆相互作用和华南陆缘地质演化的一条关键性构造带。该构造带的T3-J含煤地层不整合下伏于下白垩统南园组之下,或以角闪岩相包体形式赋存于晚侏罗—早白垩世片麻状花岗岩体内。这些具有透入性混合岩化特征的副变质岩包体(T3-J)与围岩(片麻状花岗岩)发生过同变形,并且被未变形的白垩纪岩体/脉侵入。这些晚三叠—早侏罗世地层的变质和变形具有朝陆内(NW)方向减弱的特征。下白垩统南园组普遍发生褶皱和绿片岩相变质,并且被未变质的上白垩统石帽山群不整合覆盖。长乐—南澳带的主要岩石单元与构造特征表明华南陆缘在晚中生代经历过两期挤压(造山)。在第一期挤压(造山)过程中,T3-J陆相地层发生褶皱和变质。随后,这些经历了变形和变质的T3-J沉积地层与中-上地壳的其他岩石在早白垩世早期发生构造折返,其间伴随着大规模同构造岩浆作用(147～135 Ma)和区域性混合岩化。在第二期挤压过程中,早白垩世南园组发生褶皱和变质。华南陆缘110～100 Ma的岩浆杂岩、100～90 Ma的A型花岗岩和90～80 Ma的双峰式火成岩可能分别与这次挤压事件及其后的地壳伸展、减薄过程有关。因此,华南晚中生代两大岩浆旋回(165～120 Ma和110～80 Ma)可能受控于同期的两大构造旋回(165～120 Ma和115～80 Ma)。每个构造旋回包括一个地壳受挤压增厚过程和一个随后发生的地壳伸展减薄过程。值得注意的是,华南沿海地区的晚中生代构造-岩浆作用与陆内同期构造-岩浆作用似乎具有可比性。

关键词：长乐-南澳构造带平潭-东山杂岩带福清-云霄变质带晚中生代陆缘造山

花岗质岩浆‒热液过渡阶段成矿响应及其岩石学记录

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大地构造与成矿学 2024年第3期48卷 460-477页

作者：洪涛翟明国高俊徐兴旺吴楚中山大学地球科学与工程学院广东省地球动力作用与地质灾害重点实验室广东珠海519082 南方海洋科学与工程广东省实验室(珠海) 广东珠海519082 中国科学院地质与地球物理研究所矿产资源研究重点实验室北京100029 中国科学院大学北京100049 中国科学院地球科学研究院北京100029 中国地质调查局发展研究中心北京100037

开展铜、锂和铍等关键金属的迁移富集机制与规律研究对于理解斑岩型和伟晶岩型矿床的成因具有重要意义。目前,大多数研究集中在岩浆形成到热液析出的“两端”演化过程,而岩石的后期热液蚀变是流体活动最活跃的时期,会强烈改造前期的成... 详细信息

开展铜、锂和铍等关键金属的迁移富集机制与规律研究对于理解斑岩型和伟晶岩型矿床的成因具有重要意义。目前,大多数研究集中在岩浆形成到热液析出的“两端”演化过程,而岩石的后期热液蚀变是流体活动最活跃的时期,会强烈改造前期的成矿过程,导致难以识别岩浆向热液转换阶段的成矿流体演化特征。近来,研究发现花岗质岩浆在岩浆‒热液过渡阶段存在熔体与热液流体共生的岩石学记录:斑岩型矿床成矿体系中保存的含矿岩墙/脉、富铜钼的“岩浆‒流体”囊状体、“羽丝状”含矿细晶岩脉群、蠕虫状石英斑晶中保留的熔体‒流体包裹体;伟晶岩型矿床成矿体系中保存的单向固结的石英脉和细晶岩、晶洞构造和文象结构等。这些岩石学证据有效记录了成矿流体从岩浆到热液演化过程中同源固相与流体相之间的平衡控制过程,以及成矿元素的溶解和富集行为:(1)岩浆‒热液过渡阶段形成的“羽丝状”含铜细晶岩脉群,表明在较高的温度(523~613)℃条件下,熔体和流体存在相分离;(2)岩浆‒热液过渡阶段形成的熔流体混合相是亲铜元素由岩浆迁移进入热液的保障,可能代表了运移成矿元素介质的性质;(3)在岩浆‒热液过渡阶段,晶洞中石英的阴极发光(CL)图像揭示了多期环带结构,不同环带的O同位素均显示来源于岩浆阶段,可能与同一岩浆房中存在成矿流体多次出溶相关;(4)岩浆‒热液过渡阶段分离出的碱性金属元素/挥发性组分(如H2O、F、B和Cl)进一步促进了伟晶岩型矿床中li、Be等成矿金属的富集和迁移;(5)岩浆‒热液过渡阶段形成的特殊含矿结构(如文象结构)是伟晶岩型Be矿床的有效找矿标志。在岩浆‒热液过渡阶段形成的岩石学证据虽然受到后续热液的强烈改造,但是仍能保存部分重要的成矿学信息,剖析该阶段成矿作用有助于了解花岗质成矿岩浆完整的岩浆‒热液流体的演化过程。

关键词：岩浆‒热液型矿床战略性关键金属铜、锂、铍岩浆‒热液过渡阶段

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平原M5.5地震土壤气地球化学特征及成因

地震地质 2024年第2期46卷 433-448页

作者：苏淑娟陈其峰孙豪刘军冯梁乐徐继龙杨彦明雒昆利山东省地震局济南250000 中国科学院地理科学与资源研究所北京100101 内蒙古自治区地震局呼和浩特010010 中国地震局地质研究所地震动力学国家重点实验室北京100029

2023年8月6日2时33分,山东省德州市平原县发生M5.5地震。文中跨震中布设4条长30km的勘测线,现场测量了土壤气Rn、CO_(2)和Hg浓度。结果表明:1)土壤气浓度表现出明显的空间差异,震中区与4条测线的东、西两端气体浓度相对较高。2)土壤气... 详细信息

2023年8月6日2时33分,山东省德州市平原县发生M5.5地震。文中跨震中布设4条长30km的勘测线,现场测量了土壤气Rn、CO_(2)和Hg浓度。结果表明:1)土壤气浓度表现出明显的空间差异,震中区与4条测线的东、西两端气体浓度相对较高。2)土壤气浓度的空间分布特征在震中及其东部地区相似,但在震中西部差异较大,在西部旧城断裂(F_(3))附近,Rn和CO_(2)的浓度高于震中区,推测应与地震活动和F_(3)控制的鼻状构造有关。3)Rn、CO_(2)和Hg的浓度在陵县-冠县断裂(F_(1))和F_(3)附近出现高值异常,余震自F_(1)向F_(3)发展,结合地质与地球物理研究资料推断,平原M5.5地震应与F_(1)和F_(3)共同作用有关。以上结果表明,气体地球化学方法能较好地指示隐伏断层的位置与展布方向。

关键词：平原M5.5地震断层土壤气浓度陵县-冠县断裂旧城断裂构造地球化学

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The first data release(DR1) of the LAMOST regular survey

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Research in Astronomy and Astrophysics 2015年第8期15卷 1095-1124页

作者： A-li Luo Yong-Heng Zhao Gang Zhao li-cai Deng Xiao-Wei liu Yi-Peng Jing Gang wang Hao-Tong Zhang Jian-Rong Shi Xiang-Qun Cui Yao-Quan Chu Guo-Ping li Zhong-Rui Bai Yue Wu Yan cai Shu-Yun Cao Zi-Huang Cao Jeffrey L.Carlin Hai-Yuan Chen Jian-jun Chen Kun-Xin Chen li Chen Xue-Lei Chen Xiao-Yan Chen Ying Chen Norbert Christlieb Jia-Ru Chu Chen-Zhou Cui Yi-Qiao Dong Bing Du Dong-Wei Fan Lei Feng Jian-Ning Fu Peng Gao Xue-Fei Gong Bo-Zhong Gu Yan-Xin Guo Zhan-Wen Han Bo-liang He Jin-liang Hou Yong-Hui Hou Wen Hou Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Zhi-Ying Huo Lei Jia Fang-Hua Jiang Xiang Jiang Zhi-Bo Jiang Ge Jin Xiao Kong Xu Kong Ya-Juan Lei Ai-Hua li Chang-Hua li Guang-Wei li Hai-Ning li Jian li Qi li Shuang li Sha-Sha li Xin-Nan li Yan li Yin-Bi li Ye-Ping li Yuan liang Chien-Cheng lin Chao liu Gen-Rong liu Guan-Qun liu Zhi-Gang liu Wen-Zhi Lu Yu Luo Yin-Dun Mao Heidi Newberg Ji-jun Ni Zhao-Xiang Qi Yong-jun Qi Shi-Yin Shen Huo-Ming Shi Jing Song Yi-Han Song Ding-Qiang su Hong-jun su Zheng-Hong Tang Qing-Sheng Tao Yuan Tian Dan wang Da-Qi wang Feng-Fei wang Guo-Min wang Hai wang Hong-Chi wang Jian wang Jia-Ning wang Jian-ling wang Jian-Ping wang jun-Xian wang Lei wang Meng-Xin wang Shou-Guan wang Shu-Qing wang Xia wang Ya-Nan wang You wang Yue-Fei wang You-Fen wang Peng Wei Ming-Zhi Wei Hong Wu Ke-Fei Wu Xue-Bing Wu Yu-Zhong Wu Xiao-Zheng Xing ling-Zhe Xu Xin-Qi Xu Yan Xu Tai-Sheng Yan De-Hua Yang Hai-Feng Yang Hui-Qin Yang Ming Yang Zheng-Qiu Yao Yong Yu Hui Yuan Hai-Bo Yuan Hai-Long Yuan Wei-Min Yuan Chao zhai En-Peng Zhang Hua-Wei Zhang Jian-Nan Zhang li-Pin Zhang Wei Zhang Yong Zhang Yan-Xia Zhang Zheng-Chao Zhang Ming Zhao Fang Zhou Xu Zhou Jie Zhu Yong-Tian Zhu Si-Cheng Zou Fang Zuo National Astronomical Observatories Chinese Academy of Sciences Department of Astronomy Peking University Shanghai Astronomical Observatory Chinese Academy of Sciences Nanjing institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences University of Science and Technology of china Department of Physics Applied Physics and AstronomyRensselaer Polytechnic InstituteTroyNY 12180USA Department of Physics and Astronomy Earlham CollegeRichmondIN 47374USA Universitt Heidelberg Zentrum für AstronomieLandessternwarteKnigstuhl 1269117 HeidelbergGermany Department of Astronomy Beijing Normal University Yunnan Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

The Large sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST） general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in june 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in june 2013. The LAMOST DR1 includes a total of 1202 plates containing 2 955 336 spectra, of which 1 790 879 spectra have observed signalto-noise ratio（SNR） ≥ 10. All data with SNR ≥ 2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2 204 696 spectra, of which 1 944 329 are stellar spectra, 12 082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters： late A,FGK-type stars with high quality spectra（1 061 918 entries）, A-type stars（100 073 entries）, and M-type stars（121 522 entries）. This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided.

关键词： techniques: spectroscopic survey—data release—catalog

An overview of the resources and environment conditions and major geological problems in the Yangtze River economic zone, china

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china geology 2018年第3期1卷 435-449页

作者： Yue-hua Jiang liang-jun lin li-de Chen Hua-yong Ni Wei-ya Ge Hang-xin Cheng Gang-yi zhai Gui-ling wang Yi-zhong Ban Yuan li Ming-tang Lei Cheng-xuan Tan Jing-wen su Quan-ping Zhou Tai-li Zhang Yun li Hong-ying liu Ke Peng Han-mei wang Nanjing geological survey Center China Geological SurveyNanjing 210016China institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China Shanghai geological survey Research institute Shanghai 200072China china geological survey Water Ring Department Beijing 100037China Wuhan geological survey Center of china geological survey Wuhan 430205China Chengdu geological survey Center China Geological SurveyChengdu 610081China Geophysical and Geochemical Exploration Chinese Academy of Geological SciencesLangfang 065000China Oil and Gas survey China Geological SurveyBeijing 100029China institute of Hhydrogeology and Hnvironmental geology Chinese Academy of Geological SciencesShijiazhuang 050061China china institute of Geo-environmental Monitoring Beijing 100081China institute of Karst geology Chinese Academy of Geological SciencesGuilin 541004China

Focusing on the Yangtze River economic zone,the previous geological researches are systematically summarized,resources and environment conditions and major geological problems which are needing to be concerned in land planning and construction are *** results show that the resource conditions of cultivated land,shale gas,geotherm,lithium and so on are superior in the Yangtze River economic zone,and the resources and environment conditions are conducive to develop the modern agriculture,clean energy industry and strategic emerging industries.3.1013 m^2 farmlands without heavy metal pollution are concentrated;there are three national level shale gas exploration and development bases with explored reserves of 5.441×1011 m^3;geothermal availability is 2.4×109 t of standard coal each year,equivalent to 19% of the amount of coal in 2014;Asia's largest energy lithium metal ore deposit is *** some parts of Yangtze River economic zone,there are some major geological problems such as active faults,karst collapse,ground subsidence,landslide-collapse-debris flow,affecting the river-crossing channels,high-speed railway,urban agglomeration and green ecological corridor planning and *** problems should be concerned,and the relevant suggestions and countermeasures are put ***,the ideas to further support the development of the Yangtze River economic zone are put forward.

关键词： The Yangtze River economic zone Resources and environment conditions Major geological problems Environmental geology Hydrogeology Disaster geology