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1Spatial patterns and driving forces of land use change in China during the early 21st century显示文摘Land use and land cover change as the core of coupled human-environment systems has become a potential field of land change science (LCS) in the study of global environmental change. Based on remotely sensed data of land use change with a spatial resolution of 1 km × 1 km on national scale among every 5 years, this paper designed a new dynamic regionalization according to the comprehensive characteristics of land use change including regional differentiation, physical, economic, and macro-policy factors as well. Spatial pattern of land use change and its driving forces were investigated in China in the early 21st century. To sum up, land use change pattern of this period was characterized by rapid changes in the whole country. Over the agricultural zones, e.g., Huang-Huai-Hai Plain, the southeast coastal areas and Sichuan Basin, a great proportion of fine arable land were engrossed owing to considerable expansion of the built-up and residential areas, resulting in decrease of paddy land area in southern China. The development of oasis agriculture in Northwest China and the reclamation in Northeast China led to a slight increase in arable land area in northern China. Due to the 'Grain for Green' policy, forest area was significantly increased in the middle and western developing regions, where the vegetation coverage was substantially enlarged, likewise. This paper argued the main driving forces as the implementation of the strategy on land use and regional development, such as policies of 'Western Development', 'Revitalization of Northeast', coupled with rapidly economic development during this period.LIU Jiyuan ZHANG Zengxiang XU Xinliang KUANG Wenhui ZHOU Wancun ZHANG Shuwen LI Rendong YAN Changzhen YU Dongsheng WU Shixin JIANG Nan 2010Journal of Geographical Sciences2010,20,4:154
2Spatiotemporal characteristics, patterns, and causes of land-use changes in China since the late 1980s显示文摘Land-use/land-cover 变化(LUCC ) 有连接到人和自然相互作用。瓷器 Land-Use/cover 数据集(CLUD ) 从 1980 年代末在 5 年的间隔定期被更新到 2010,与基于 Landsat TMETM+ 图象的标准过程。陆地使用动态区域化方法被建议分析主要陆地使用变换。在国家规模的陆地使用变化的空间与时间的特征,差别,和原因然后被检验。主要调查结果如下被总结。越过中国的陆地使用变化(LUC ) 在最后 20 年(19902010 ) 里在空间、时间的特征显示了一个重要变化。农田变化的区域在南方减少了并且在北方,而是仍然是的全部的区域增加了几乎未改变。回收农田从东北被转移到西北。布满建筑物陆地很快膨胀了,主要在东方被散布,并且逐渐地展开到中央、西方的中国。树林首先减少了,然后增加但是荒芜的区域是反面。草地继续减少。在中国的 LUC 的不同空间模式被发现在之间迟了第 20 世纪并且早第 21 世纪。原版 13 个 LUC 地区在一些地区被边界的变化由 15 个单位代替。包括的这些变化(1 ) 的主要空间特征加速的扩大布满建筑物在 Huang-Huai-Hai 区域,东南的沿海的区域,长江的中流区域,和四川盆登陆;(2 ) 从东北中国和东方内部蒙古在北方转移了陆地开垦到绿洲在西北中国的农业区域;(3 ) 从在到稻的东北中国的喂雨的农田的连续转变回答;并且(4 ) 为在内部蒙古,黄土高原,和西南的多山的区域的南部的农业牧剧的交错群落的格林工程的谷物的有效性。在最后二十年,尽管在北方的气候变化在农田影响了变化,政策规定和经济驱动力仍然是越过中国的 LUC 的主要原因。在第 21 世纪的第一十年期间,在陆地使用模式驾驶了变化的人为的因素从单程的陆地开发转移了强调到开发和保存。动态区域化方法被用来在单位的 zoning 边界,地区的内部特征,和生长和减少的空间模式分析变化。结果揭示了变化过程的模式,也就是 LUC 的过程和在在不同阶段的特征的地区性的差别。地区的生长和减少在这动态 LUC zoning,在统一边界的变化,和在前者和后者十年之间的变化紧张的特征期间被检验。在为在不同类型和陆地使用的不同区域的变化的陆地使用和原因的模式和过程之间的其他的转变的模式被探索。LIU Jiyuan KUANG Wenhui ZHANG Zengxiang XU Xinliang QIN Yuanwei NING Jia ZHOU Wancun ZHANG Shuwen LI Rendong YAN Changzhe WU Shixin SHI Xuezheng JIANG Nan YU Dongsheng PAN Xianzhang CHI Wenfeng 2014Journal of Geographical Sciences2014,24,2:245
3Inhibition of SARS-CoV-2 (previously 2019-nCoV) infection by a highly potent pan-coronavirus fusion inhibitor targeting its spike protein that harbors a high capacity to mediate membrane fusion显示文摘The recent outbreak of coronavirus disease(COVID-19)caused by SARS-CoV-2 infection in Wuhan,China has posed a serious threat to global public health.To develop specific anti-coronavirus therapeutics and prophylactics,the molecular mechanism that underlies viral infection must first be defined.Therefore,we herein established a SARS-CoV-2 spike(S)protein-mediated cell-cell fusion assay and found that SARS-CoV-2 showed a superior plasma membrane fusion capacity compared to that of SARS-CoV.We solved the X-ray crystal structure of six-helical bundle(6-HB)core of the HR1 and HR2 domains in the SARS-CoV-2 S protein S2 subunit revealing that several mutated amino acid residues in the HR1 domain may be associated with enhanced interactions with the HR2 domain.We previously developed a pan-coronavirus fusion inhibitor,EK1,which targeted the HR!domain and could inhibit infection by divergent human coronaviruses tested,including SARS-CoV and MERS-CoV.Here we generated a series of lipopeptides derived from EK1 and found that EK1C4 was the most potent fusion inhibitor against SARS-CoV-2 S protein-mediated membrane fusion and pseudovirus infection with IC50s of 1.3 and 15.8 nM,about 241-and 149-fold more potent than the original EK1 peptide,respectively.EK1C4 was also highly effective against membrane fusion and infection of other human coronavirus pseudoviruses tested,including SARS-CoV and MERS-CoV,as well as SARSr-CoVs,and potently inhibited the replication of 5 live human coronaviruses examined,including SARS-CoV-2.Intranasal application of EK1C4 before or after challenge with HCoV-OC43 protected mice from infection,suggesting that EK1C4 could be used for prevention and treatment of infection by the currently circulating SARS-CoV-2 and other emerging SARSr-CoVs.Shuai Xia Meiqin Liu Chao Wang Wei Xu Qiaoshuai Lan Siliang Feng Feifei Qi Linlin Bao Lanying Du Shuwen Liu Chuan Qin Fei Sun Zhengli Shi Yun Zhu Shibo Jiang Lu Lu 2020Cell Research2020,30,4:81
4Surface Rupture and Co-seismic Displacement Produced by the Ms 8.0 Wenchuan Earthquake of May ^(12)th,2008,Sichuan,China:Eastwards Growth of the Qinghai-Tibet Plateau显示文摘女士 8 的地震给 Wenchuan 以县,西方的四川,中国,在 2008 年 5 月 12 日并且导致了长表面破裂(> 300 km ) 。关于表面破裂的第一手的观察在 Yingxiu, Beichuan 和 Qingchuan 的最糟点击的区域由地震生产了,查明地震的原因的结构在 Longmenshan 构造的带的中央差错地区。沿着 Yingxiu-Beichuan 破裂地区活动范围 2.5-4 m 的单个差错的平均 co 地震的垂直排水量和越过中央、正面的 Longmenshan 差错的累积垂直排水量系上带子是大约 56 m。表面破裂力量从 Beichuan 的北方被归结为 Qingchuan 县和表演 23 m 右罢工滑倒部件。Wenchuan 指责戳的地震是在印度、欧亚的大陆的连续集中的行动下面的西藏的高原的东方生长的表明。DONG Shuwen ZHANG Yueqiao WU Zhenhan YANG Non MA Yinsheng SHI Wei CHEN Zhengle LONG Changxin AN Meijian 2008Acta Geologica Sinica(English Edition)2008,82,5:59
5Jurassic Tectonic Revolution in China and New Interpretation of the “Yanshan Movement”显示文摘摘要:与结构的地质的调查的新数据和高分辨率的同位素的标明日期数据的获得和累积,我们极大地改进了我们从迟了的侏罗记在时期期间发生在东方中国到早白垩纪的构造事件的理解并且可以给性质的新解释,预定并且 Yanshan 运动的 geodynamic 背景。在中间迟了的侏罗记期间(165 挠慬獳漠 ??DONG Shuwen ZHANG Yueqiao LONG Changxing YANG Zhenyu JI Qiang WANG Tao HU Jianmin CHEN Xuanhua 2008Acta Geologica Sinica(English Edition)2008,82,2:41
6An Archean continental block in the Taihangshan and Hengshan regions: Constraints from geochronology and geochemistry显示文摘Recent research on the tectonothermal evolution and geochronology in the Fuping, Hengshan and Wutaishan metamorphic complexes, together with the discoveries of a high-pressure granulite belt in the northern margin of the North China Craton (NCC) and high-pressure metapelites in the Jingangku Group of the Wutaishan complex, suggests that there was a Neoarchean to Paleoproterozoic orogenic belt related to collision between the Eastern and Western continental blocks. Comparison of geological, geochronological, tectonothermal and geochemical data between the Fuping and Hengshan complexes suggests these two complexes most likely originated and evolved as a single lithotectonic domain (i.e., the Taihangshan-Hengshan block) during the early evolution of the North China Craton, probably as an active margin to the Eastern Continental Block. The Taihangshan-Hengshan block has been subjected to intensive and extensive tectono-magmatism and high-grade metamorphism related to collision between the Eastern and Western continental blocks at ~1.80 Ga.LIU Shuwen , LI Jianghai, PAN Yuanming, ZHANG Jian and LI Qiugen(1. The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China 2. Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada) 2002Progress in Natural Science:Materials International2002,12,8:32
7Active Faulting Pattern,Present-day Tectonic Stress Field and Block Kinematics in the East Tibetan Plateau显示文摘这篇论文由从出版文学集成可得到的数据在东方西藏的高原检验主要活跃差错和今日的构造压力地并且建议这个区域的一个块 kinematics 模型。它证明东方西藏的高原被罢工滑倒和反向的指责压力政体统治并且最大的水平压力与当代的速度地粗略地一致,除了在哪儿的西方 Qinling 范围它罢工主要罢工滑倒指责的平行。在东方西藏的高原的活跃 tectonics 被三描绘指责系统。指责系统的离开滑倒 Kunlun-Qinling 联合东方 Kunlun 差错地区,沿着 Minshan 范围的左首的倾斜的反向的差错和切西方 Qinling 范围的二个主要旧姓惹人注目的差错,它提供东方运动,在 10 14 mm/a, Chuan-Qing 块。指责系统的离开滑倒 Xianshuihe 顺时针方向提供了 Chuan-Dian 块的旋转。指责系统的 Longmenshan 戳形成东方西藏的高原的东方边缘并且被宣传了到四川盆的 SW。越过 Longmenshan 范围的外壳的弄短似乎低(2 4 mm/a ) 并且吸收了仅仅 Chuan-Qing 块的东方运动的小部分。大多数这个东方运动被传给华南,它是在 7 9 mm/a 的动人的看见病房。东方西藏的高原的外壳和岩石圈更加被变厚,这从地球物理的数据解释被建议并且变阻器逻辑地分层。上面的外壳似乎是从通过在 15 20 km 的深度的一个 d é collement 地区的更低的外壳的 decoupled,它包含了 Longmenshan 差错带并且宣传对四川盆的 SW 东方。Wenchuan 地震就在这个 d é collement 系统的区分的点被形成。一个变阻器逻辑边界应该在在哪儿的 Longmenshan 差错带下面存在东方西藏的高原和石版印刷的更低的外壳 Yangze 块的球的披风被并列。ZHANG Yueqiao DONG Shuwen YANG Nong 2009Acta Geologica Sinica(English Edition)2009,83,4:34
8Development of a Chinese land data assimilation system:its progress and prospects显示文摘陆地数据吸收的目的是为改进陆地表面状态的评价把多来源观察合成陆地表面模型的动力学。我们为中国的陆地领土开发了一个陆地数据吸收系统。在这个系统,普通陆地模型和简单生物圈,模型 2 被用来模仿陆地表面过程。当转移的观察操作员为预言建模进估计的亮度温度,融化并且结冰的土壤,雪,湖,和植被的放射的转移模型被使用。一个 Monte-Carlo 顺序的过滤器,整体 Kalman 过滤器,作为数据吸收方法被实现集成当模特儿并且观察。系统能够遥远地吸收被动微波察觉到的数据象特殊传感器微波成像器那样(SSM 我) , TRMM 微波成像器(TMI ) ,和先进微波扫描辐射计为曙光女神(AMSRE ) 提高了并且在土壤和雪的 situmeasurements 常规。与 0.25 度的一个空间决定和一个小时的时间的分辨率,为土壤潮湿,土壤温度,雪和冻结的土壤的空间与时间地一致的吸收数据集被生产了。这篇论文介绍在数据吸收算法,陆地表面水文学变量的陆地表面建模微波遥感,和大气的强迫的数据的准备上做的中国陆地数据吸收系统和进步的开发。为未来开发开发陆地数据吸收系统和观点的不同特征和挑战也被讨论。Li Xin Huang Chunlin Che Tao Jin Rui Wang Shugong Wang Jiemin Gao Feng Zhang Shuwen Qiu Chongjian Wang Chenghai 2007Progress in Natural Science:Materials International2007,17,8:30
9Re-Os and U-Pb Geochronology of the Erlihe Pb-Zn Deposit,Qinling Orogenic Belt,Central China,and Constraints on Its Deposit Genesis显示文摘The Erlihe Pb-Zn deposit is an important mine of the Pb-Zn metallogenic zone in the South Qinling Orogen.It has been considered a sedimentary exhalative deposit in previous investigations because the ore body occurs concordantly at the transitional location of an upright fold.Re and Os isotopic analyses for paragenetic pyrites with sphalerite and galena from the ore body have been used to determine the timing of mineralization and to trace the source of metallogenic materials.The Re-Os isotopic data of four pyrite samples construct an isochron,yielding a weighted average age of 226±17 Ma(mean square weighted deviation=1.7),which is considered the main mineralization age.A dioritic porphyrite vein sample,showing weaker mineralization,was also dated using the SHRIMP zircon UPb isotopic method to constrain the youngest metallogenic age of the ore deposit,because it distributes along a group of tensional joints cutting not only the upright fold in the deposit field,but also the main ore bodies.The dioritic porphyrite sample yields a weighted mean ^(206)Pb/^(238)U age of 221±3 Ma,which is slightly younger than the Re-Os isotopic isochron age of the pyrites,considered as the upper age limit of the mineralization,namely the ending age of the mineralization.The Os isotopic compositions of sulfide minerals distribute within a range between Os isotopic compositions of the crust and the mantle, indicating that the ore deposit can be derived from magma-related fluid,and the metallogenic materials are most likely derived from the mixing source of the crust and the mantle.The Erlihe Pb-Zn deposit and associated dioritic porphyrite vein,important records of Qinling tectonic-magmatism-mineralization activities,were formed during the Triassic collisional orogeny processes.ZHANG Fan LIU Shuwen LI Qiugen SUN Yali WANG Zongqi YAN Quanren YAN Zhen 2011Acta Geologica Sinica(English Edition)2011,85,3:30
10Analysis of Pathological data of renal biopsy at one single center in China from 1987 to 2012显示文摘Zhang Xueguang Liu Shuwen Tang Li Wu Jie Chen Pu Yin Zhong Li Minxia Xie Yuansheng Cai Guangyan Wei Ribao Qiu Qiang Wang Yuanda Shi Suozhu Chen Xiangmei 2014Chinese Medical Journal2014,,9:30
11Changes of Late Mesozoic Tectonic Regimes around the Ordos Basin(North China)and their Geodynamic Implications显示文摘合成基于岩石层位学、结构的分析在 Ordos 盆附近在地区在迟了的中生代变丑模式上在这份报纸被给。迟了的中生代构造压力进化的一张相对年表从差错 kinematics 的域分析被建立并且由 stratigraphic 接触关系抑制了。结果表演引申构造有压缩性并且 extensional 政体。Ordos 盆和它的环境在到 NNE-SSW 扩展的弱 N-S 在期间对中间的侏罗记早,它重新激活 E-W-trending 地下室破裂。构造政体在迟了的侏罗记期间改变了到多方向性的有压缩性的,它沿着 Ordos 盆的边缘的地区导致了外壳的弄短的变丑。然后,它在早白垩纪期间改变了到 extensional,哪个 rifted Ordos 盆的西方、西北、东南的边缘。NW-SE 压缩在迟了的白垩纪期间发生了并且引起了沉积的结束并且 Ordos 盆高举。在 Ordos 盆最好附近的迟了的中生代构造压力政体和联系变丑模式的这分阶段执行的进化在东亚在地区性的 geodynamic 设置记录变化,从对跟随在诺思和华南块之间的三叠纪的碰撞的中间的侏罗记 post-orogenic 扩展早,由三个盘子的同步集中生产了到迟了的侏罗记多方向性的压缩(西伯利亚的板到北方,Paleo和平的板到东方和 Lha 早白垩纪扩展可能是对倒塌并且 lithospheric 北方中国 Craton 变瘦的反应。ZHANG Yueqiao SHI Wei DONG Shuwen 2011Acta Geologica Sinica(English Edition)2011,85,6:28
12Fusion mechanism of 2019-nCoV and fusion inhibitors targeting HR1 domain in spike protein显示文摘Very recently,a novel coronavirus,2019-nCoV,emerged in Wuhan,China and then quickly spread worldwide,resulting in>17,388 confirmed cases and 361 deaths as of 3 February 2020,thus calling for the development of safe and effective therapeutics and prophylatics.1,2 Similar to severe acute respiratory syndrome(SARS)-CoV,2019-nCoV belongs to lineage B betacoronavirus,and it has the ability to utilize human angiotensin-converting enzyme 2(ACE2)as a receptor to infect human cells.Shuai Xia Yun Zhu Meiqin Liu Qiaoshuai Lan Wei Xu Yanling Wu Tianlei Ying Shuwen Liu Zhengli Shi Shibo Jiang Lu Lu 2020Cellular & Molecular Immunology2020,17,7:27
13Nature of the Precambrian metamorphic blocks in the eastern segment of Central Tianshan:Constraint from geochronology and Nd isotopic geochemistry显示文摘Granitoid gneisses are widespread in Precambrian metamorphic blocks of eastern segment of the Central Tianshan Tectonic Zone, and they have intrusive contact relationships with their metamorphic sedimentary country rocks of Proterozoic Xingxingxia and Kawabulag groups. Zircon U-Pb ages from a granodioritic gneiss (IW11-1) and a parametamorphic schist (W05-9) are determined at the Weiya area. Euhedral prismatic zircons from the granodioritic gneiss (IW11-1) provide U-Pb isotopic discordia intercept ages of 1218±17 Ma and 426±26 Ma, respectively, and euhedral prismatic zircons from the parametamorphic schist (W05-9) display U-Pb isotopic discordia intercept ages of 1216±74 Ma and 290±15 Ma, respectively. A whole-rock Sm-Nd isotopic isochron is determined in augen granitoid gneiss samples at the Gang- gou-Kumishi area and we obtain the isochron age of 1142±120 Ma, and its ε Nd (t) = -4.3. These geochronological data suggest that these Precambrian metamorphic basement blocks within eastern segment of the Central Tianshan Tectonic Zone can be produced during 1140—1220 Ma, and occur a nearly homochronous metamorphism. Integrated to these geochronological data, Nd depleted mantle model ages (T DM ) and epsilon Nd(t) values of these granitoid gneiss samples indicate that they can derive from mixing in various scales both magmas from mantle and crust sources at a late Mesoproterozoic active continental margin tectonic environment. Similarity in geochronology, Sm-Nd isotopic geochemistry between Weiya-Xingxingxia, Pargangtag and Ganggou-Kumishi areas suggests that they could be a bigger uniform metamorphic basement block, which could be formed by the assembly of the supercontinent Rodinia and be separated by late geological processes.LIU Shuwen,GUO Zhaojie,ZHANG Zhicheng,LI Qiugen & ZHENG Haifei The Key Laboratory of Orogenic Belts and Crustal Evolution,Ministry of Education,China School of Earth and Space Sciences,Peking University,Beijing 100871,China 2004Science China Earth Sciences2004,47,12:26
14Zircon SHRIMP geochronology and geochemistry of TTG rocks in Sushui Complex from Zhongtiao Mountains with its geological implications显示文摘在宗陶·布莱克复杂的 Sushui 的 tonalite-trondhjermite-granodiorite (TTG ) 岩石能根据他们的锆石 U-Pb 年龄被划分成二个系列, geochemical 特征一是 subduction 相关的(SR ) 并且其它碰撞相关(CR ) 。和另外的晚太古代的岛弧 magmatism, SR TTG 岩石由于在东方、西方的黑人之间的海洋的 subduction 被开发在晚太古代;当 CR TTG 岩石在变厚的外壳的环境形成了时。它在 Paleoproterozoic 对在东方、西方的块之间的碰撞正在作出回应。所有这些特征支持宗陶·布洛克是在诺思中国 Craton 的中间的 Trans 北方中国 Orogen 的部分的一个模型。TIAN Wei LIU Shuwen LIU Chaohui YU Shengqiang LI Qiugen WANG Yueran 2006Progress in Natural Science:Materials International2006,16,5:24
15Geohazards Induced by the Lushan Ms7.0 Earthquake in Sichuan Province, Southwest China:Typical Examples, Types and Distributional Characteristics显示文摘Geohazards induced by the Lushan Ms 7.0 earthquake on April 20, 2013 mainly have four types: collapse, landslide, slope debris flow, and sand-soil liquefaction. These geohazards mainly occurred near the epicenter, on steep slopes or below cliffs in high mountain and deep valley areas, and at or near fault ends. They have no obvious relationships to active faults, but their relationships to the weathering degree and structures of rock and rock mass are obvious. Compared with the Wenchuan Ms 8.0 earthquake on May 12, 2008, the Lushan earthquake is relatively little in the impact force and the throwing amount. All of these should be related to the magnitude of this earthquake, not very large but not very little. This character of the Lushan earthquake would make some processes uncompleted so as to bring about some concealed geohazards. Finally, in order to deal with challenges presented by such conceal geohazards, some brief recommendations are put forward.ZHANG Yongshuang DONG Shuwen HOU Chuntang GUO Changbao YAO Xin LI Bin DU Jianjun ZHANG Jiagui 2013Acta Geologica Sinica(English Edition)2013,87,3:24
16Jurassic Tectonics of North China:A Synthetic View显示文摘摘要:这份报纸在诺思中国的侏罗记 tectonics 上给一个合成看法,随建议为逐步的构造进化历史的一个框架的一次尝试。在诺思中国的侏罗记沉积,变丑和 magmatism 被划分了成三个阶段。最早的侏罗记被 magmatism 静止的一个时期标记(在 205190 妈) 并且地区性高举,它被认为是在北方和华南块之间的大陆大陆碰撞描绘的 Indosinian 运动的继续。对中间的侏罗记早(在 190170 妈)被导出披风的火成论和火山作用沿着 Yanshan 带并且在表示的弱 lithospheric 扩展支配 Tan-Lu 差错地区,沿着 Yinshan-Yanshan 构造的带的正常指责和 graben 形成,消沉并且在北方中国块(网络控制块)的广阔区域忍受煤的沉积恢复。到迟了的侏罗记舞台的中间在 165 牡敳 s 开始了 ?????ZHANG Yueqiao DONG Shuwen ZHAO Yue ZHANG Tian 2008Acta Geologica Sinica(English Edition)2008,82,2:23
17Geochemistry,Nd Isotopic Characteristics of Metamorphic Complexes in Northern Hebei:Implications for Crustal Accretion显示文摘北方中国古地台(NCC ) 的北边缘的中间的片断在 Damiao-Changshaoying 区域主要由变形太古代的 Dantazi 建筑群, Paleoproterozoic Hongqiyingzi 复杂 andunmetamorphosed gabbro-anorthosite-meta-alkaline 花岗石,以及变形迟了的 Paleozoicmafic 组成到 granitoid 岩石。~ 2 .49 Ga Dantazi 复杂 comprisesdioritic-trondhjemitic-granodoritic-monzogranitic 片麻岩在角闪岩变形了到 granulitefacies。石油化学的特征表明大多数岩石属于媒介--tohigh钾计算碱的系列,和显示Mg~#不到 40 ,衰退权利的 REE 模式没有到在使primitivemantle正常化的蜘蛛图的显然积极的 Eu 异例,显然否定的 Th , Nb , Ta 和 Ti 异例,到-0.03,和弄空的披风的ε_( Nd )(t) =+0.65 为agesT_( DM ) =2.78-2.71 Ga 建模。在岩石成因论的学习显示岩石从从在一个大陆人边缘背景的再循环的外壳的 mafic 岩石的部分融化从弄空的披风和 granitoid 岩浆在 mafic 岩浆之间混合的 magmatic 被形成。2.44-2.41 Ga Hongqiyingzi 建筑群被变形 mafic-granodioritic-monzogranitic 片麻岩统治,显示到 Dantazi 建筑群的类似的石油化学的特征,对高钾也就是中等计算碱的系列,和 mafic 岩石在 LILE,否定 Th, Nb, Ta, Zr 异例和积极 Panomalies 显示出明显的变化。并且另外的 granitiod 样品也展出否定 Th, Nb, Ta, P 和 Ti 异例。在 Hongqiyingzi 复杂表演的 Allrocks 没有 Eu 的衰退权利的 REE 模式异例。有ε _(Nd ) 的 Themetamorphic mafic 岩石(t)=-1.64 不能是有 granitoids 的一个相同 magmatic 系列有(t)+3.19 珍视到 +1.94 和 2.55-2.52 Ga 的 T_(DM ) 年龄的ε _(Nd ) 。Thesegranitic 岩石从在一个弧形列岛的外壳的 mafic 岩石设置的少年的部分融化从弄空的披风和岩浆从在 mafic 岩浆之间的混血儿发源。 11 妈 LatePaleozoic 变形 mafic 摇的所有 ~3 和相关花岗石的岩石显示出一个中等钾的 calc-alkalinemagmatic 进化系列,由高Mg~#,显然否定的 Th , Nb , Ta 异例和positive 描绘了 Sr 异例,从不到有ε_( Nd )的强烈否定的 Ti 异例和扁平的 REE 模式(t)= +8.42 ,暗示 mafic 岩浆从弄空的披风被导出。另外的花岗石的岩石不管多么被衰退权利的 REE 模式显然描绘没有到 positiveEu 异例,显著地低的ε_( Nd )(t)= -13.37 到-14.04,和T_( DM ) =1.97-1.96 Ga ,表明 granitoid 岩浆从在来自 ~3 的 mafic 岩浆之间的混血儿被导出 11 Madepleted 披风和 granitoid 岩浆从对早 Paleoproterozoic 太古代古老的外壳的再循环。象上述地质的 andgeochronological 结果一样的地球化学和 Nd 同位素的特征显示 NCC 的北边缘的中间的片断主要经历了四个外壳的生长事件从对太古代晚古生代,它被三个大陆人统治边缘的弧生长( ~2 .49 , ~2 .44 和 311 妈)除了与 post-collisional 扩展有关的 1.76-1.68 Gaepisode ,表明这的外壳的生长分割主要从弧生长和合并被产生到 NCC 大陆块。LIU Shuwen TIAN Wei Lü Yongjun LI Qiugen FENG Yonggang K. H. PARK Y. S. SONG 2006Acta Geologica Sinica(English Edition)2006,80,6:21
18SHRIMP Zircon U-Pb Chronology and Geochemistry of the Henglingguan and Beiyu Granitoids in the Zhongtiao Mountains,Shanxi Province显示文摘Henglingguan 和 Beiyu 变形 granitoids,在 Zhongtiaoshan 前寒武纪的建筑群的西北分布式,包括 trondhjemites 和计算碱的 monzogranites,与太古代的 Zhaizi TTG 片麻岩显示恼人的接触。并且 Beiyu metamorphicgranitoids 主要由 trondhjemites 组成,在 Hujiayu 背斜褶层的核心分布式。分别地,标明日期加权平均值 ~(207 )Pb/~(206 ) Pb 变老的数据表演的新虾锆石 U-Pb 是为 Henglingguan 变形计算碱的 monzogranites 和 Beiyu metamorphictrondhjemites 的 2435.9 Maand 2477 妈并且揭示 600 妈继承了的~ 2 在 magmatic 锆石的核心。Whole-rockgeochemical 数据显示那所有 Henglingguan 和 Beiyu 变形 trondhjemites andcalc 碱的 monzogranites 属于遇见了铝土的中等钾、高钾的 calc-alkalineseries。这些岩石被相对高的全部的碱内容描绘(Na_2O+K_2O,在 to9.08% 上面) ,弄空的 Nb, Ta, P 和 Ti,和衰退权利的 REE 模式与对高 LREEs/HREEsfractionation 中等(吝啬的比率(La/Yb )_n = 25 ) 。在多元素蜘蛛图的 Henglingguan 和 Beiyu metamorphictrondhjemites 显示 negative Rb, Th 和 K 异例由原始披风使正常化。Sm-Nd 同位素的数据表明这些 granitoids 有起始的ε _(Nd ) 到 +2.4 和 Nd 的(t)=-1.2 弄空 T_(MD )= 的披风模型年龄 2622 马马。所有 thesegeochemical 特征显示这些 granitoids 在一条大陆边缘的弧被形成,并且 trondhjemites 主要从少年的部分融化发源玄武岩的材料并且然而, Henglingguan 变形计算碱的 monzogranites 源于在一条大陆边缘的弧下面在古老的外壳中材料再循环。花岗石的岩浆在他们的形成期间经历了污染和分离结晶。YU Shengqiang, LIU Shuwen*, TIAN Wei, LI Qiugen and FENG Yonggang The Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education School of Earth and Space Sciences, Peking University, Beijing 100871 2006Acta Geologica Sinica(English Edition)2006,80,6:21
19The Yanshan orogeny and late Mesozoic multi-plate convergence in East Asia—Commemorating 90th years of the “Yanshan Orogeny”显示文摘The Yanshan movement/orogeny has been proposed for 90 years, which is of special significance in the history of geological research in China. This study conducted a review by synthesizing major achievements regarding episodic deformation features, sedimentary and magmatic records of the Yanshan orogeny in China, and clarified the episodic tectono-magmatism and its geodynamic origins. The tectonic implications of the Yanshan orogeny are discussed in the context of global plate tectonics and supercontinent reconstruction. Lines of evidence from structural, sedimentary and magmatic data suggest that the Yanshan orogeny represents a regional-scale tectonic event that affected the entire China continent in late Mesozoic period. Numerous age and structural constraints consistently indicate that the Yanshan orogeny was initiated in the Jurassic(at ~170±5 Ma). and was characterized by alternating stages of crustal shortening at ~170–136 Ma, crustal extension at ~135–90 Ma, and weak shortening at ~80 Ma. The 170–136 Ma crustal shortening was reflected in the generation of two regional stratigraphic unconformities(the Tiaojishan and Zhangjiakou unconformities), which were initially named the A and B episodes of 'the Yanshan Orogeny' by Mr.Wong Wenhao in 1928. Geodynamically, the Yanshan orogeny in East Asia was associated with nearly coeval oceanic subduction and continental convergence in the Paleo-Pacific, Neo-Tethys, and Mongol-Okhotsk tectonic domains. As a consequence, three giant accretionary-collisional tectonic systems were formed along the continental margins of East Asia, i.e., the Mongol-Okhotsk, Bangonghu-Nujiang, and SE China subduction-and collision-related accretionary systems. The Yanshan orogeny induced widespread crustal-scale folding and thrusting, tectonic reactivation of long-lived zones of crustal weakness,and extensive magmatism and mineralization in intraplate regions. Based on the time principle of supercontinent assembly and break-up, we propose that the mid-Late Jurassic multi-plate convergence in East Asia might represent the initiation of the assembly of the Amasia supercontinent, and the Yanshan orogeny might be the first 'stirrings' that is a prerequisite for the birth of the Amasia supercontinent.Shuwen DONG Yueqiao ZHANG Hailong LI Wei SHI Huaimin XUE Jianhua LI Shiqi HUANG Yongchao WANG 2018Science China Earth Sciences2018,61,12:21
20Application of General Shear Theory to the Study of Formation Mechanism of the Metamorphic Core Complex:A Case Study of Xiaoqinling in Central China显示文摘The kinematic vorticity number and strain of the mylonitic zone related to the detachment fault increase from ESE to WNW along the moving direction of the upper plate of the Xiaoqinling metamorphic core complex (XMCC) and the geometry of quartz c-axis fabrics changes progressively from crossed girdles to single girdles in the same direction. Therefore, pure shear is dominant in the ESE part of the XMCC while simple shear becomes increasingly important towards WNW. However, the shear type does not change with the strain across the shear zone, thus the variation of shear type is of significance in indicating the formation mechanism. The granitic plutons within the XMCC came from the deep source and their emplacement was an active and forceful upwelling prior to the detachment faulting. The PTt path demonstrates that magmatism is an important cause for the formation of the XMCC. The formation mechanism of the XMCC is supposed to be active plutonism and passive detachment. Crustal thickening and magmaticZHANG Jinjiang ZHENG Yadong LIU Shuwen 2000Acta Geologica Sinica(English Edition)2000,74,1:20
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