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| 1 | 中亚造山带东南缘二叠纪-三叠纪花岗质岩浆演化对增生-碰撞过程的制约显示文摘全球许多造山带都不同程度地经历了增生和碰撞造山阶段,作为全球最大的显生宙增生型造山带,中亚造山带是如何从俯冲增生演化到碰撞拼合是一个值得探究的问题.文章报道了位于中亚造山带东南缘内蒙古中部地区二叠纪-三叠纪花岗岩新的锆石U-Pb年龄(266~235Ma)、地球化学和同位素数据,并系统梳理了区域内已有资料,从岩浆性质随时间演化的角度,厘定出该地区从早二叠世俯冲到晚二叠世(软)碰撞的构造-岩浆演化特征.从早二叠世到晚二叠世,花岗岩类全岩εNd(t)值和锆石εHf(t)值逐渐从正值演化到出现负值(ε_(Nd)(t)值:2.4~-19.5;εHf(t)值:11.6~-33.7),表明从增生演化到碰撞阶段,岩浆源区的古老陆壳组分逐渐增多.结合区域资料,进一步确认了中亚造山带演化到晚期发生(软)碰撞的岩浆标志为仅沿索伦-西拉木伦缝合带零星线性展布的增厚下地壳来源的中-晚二叠世至中三叠世高Sr/Y花岗岩类.同时,沿索伦-西拉木伦缝合带自西向东,增生-碰撞转换时期的花岗质岩浆活动的峰期年龄分别为约264和251Ma,也反映了古亚洲洋自西向东'剪刀'状闭合的过程.综合前人研究,将中亚造山带东南缘二叠纪至三叠纪从增生到碰撞的岩浆-构造演化过程总结为三个阶段.(1)早二叠世(约285Ma前):古亚洲洋双向俯冲,新生弧岩浆作用发育阶段;(2)中二叠世到中三叠世(约285~235Ma):俯冲增生到碰撞拼合的构造-岩浆转换阶段,由于造山带挤压汇聚导致板片断离而引发岩浆物源从年轻地壳向古老地壳转变;(3)晚三叠世(约235Ma后),后造山伸展相关的A型花岗岩和碱性岩浆作用发育阶段. | 吴迪迪 李舢 David CHEW 刘铁翊 郭东海 | 2021 | 中国科学:地球科学2021,51,6: | 10 |
| 2 | 施工现场安全危险源实时监控与安全风险预测方法研究显示文摘对国内外建筑业施工现场安全风险的研究进行了文献综述,针对目前研究的不足之处,提出了施工现场安全危险源实时监控和安全风险实时预测的示意性模型,并详细解释了该模型的含义和方法。研究将提供一种基于前馈信号的施工现场安全危险源实时监控和安全风险实时预测的方法;并通过将现有研究的视角引入到施工现场关键安全危险源的前馈信号上,为进一步的研究打下良好的理论基础。 | 吴伟巍 Patrick T.I. LAM 李启明 Michael C.H. YAM David A.S. CHEW | 2010 | 中国工程科学2010,12,3: | 9 |
| 3 | Permian-Triassic magmatic evolution of granitoids from the southeastern Central Asian Orogenic Belt:Implications for accretion leading to collision显示文摘Many orogenic belts in the world exhibit accretionary and collisional orogenic phases to varying extents.How accretion evolves into collision of the Central Asian Orogenic Belt(CAOB),the largest Phanerozoic accretionary orogenic belt,is an intriguing question.In this paper,we present new U-Pb age,geochemical and isotopic data for Permian-Triassic granitoids from middle Inner Mongolia,Northern China in the southeastern CAOB,and delineate the magmatic transition from subduction to(soft)collision.The magmatic record of soft collision is identified and characterized by thickened lower crust-derived high Sr/Y granitoids with a sub-linear distribution along the Solonker suture zone.Granitoids from Early Permian to Late Permian became more enriched in whole-rock Nd and zircon Hf isotopic compositions(εNd(t)values from 2.4 to-19.5,εHf(t)values from 11.6 to-33.7),indicating increasing incorporation of old crust.The change in peak timing of magmatism from west(ca.264 Ma)to east(ca.251 Ma)along the Solonker suture zone implies'scissor-like'closure of the Paleo-Asian Ocean.Integrated with previous studies,a three-stage tectonic model from the Permian to Triassic by accretion leading to collision on the south-eastern margin of CAOB is proposed.(1)Early Permian(>ca.285 Ma):Juvenile magmatism on an active continental margin with double-sided subduction of the Paleo-Asian Ocean;(2)Middle Permian to Middle Triassic(ca.285–235 Ma):Magma source transition from juvenile to old crust induced by a tectonic switch from arc to'scissor-like'closure and subsequent intracontinental orogenic contraction;(3)Late Triassic( | Didi WU Shan LI David CHEW Tieyi LIU Donghai GUO | 2021 | Science China Earth Sciences2021,64,5: | 3 |
| 4 | 碎屑岩磷灰石单矿物多法定年进展与应用显示文摘沉积物是造山带-沉积盆地'从源到汇'过程中物质与能量交换的基本介质,同造山期沉积物岩屑单矿物多法定年是解译该过程最有效的半定量-定量手段。基于LA-ICPMS的磷灰石U-Pb和裂变径迹定年(磷灰石FT-U/Pb定年)是碎屑磷灰石单矿物原位多法定年的核心,它能够同时获得矿物结晶年龄和抬升冷却年龄等,从而能有效揭示盆-山系统中深层地壳-浅表作用的构造热事件过程。近年磷灰石FT-U/Pb年龄标样矿物系统的建立,204Pb、207Pb和208Pb普通Pb成分校正法的完善为磷灰石单矿物原位多法定年提供了越来越完善的理论基础,使其受到越来越广泛的重视与应用。磷灰石在沉积物'从源到汇'疏导过程中具有弱稳定性,代表着碎屑沉积物质首次剥蚀-沉积旋回过程,对于解译多旋回或复杂物源演化过程具有得天独厚的优势。对于缺少地层年代学限定的'从源到汇'过程,碎屑磷灰石多法定年不仅能够通过FT-U/Pb年代学限定地层沉积年龄,还可以通过时滞年龄曲线等获得造山带'源'-沉积盆地'汇'系统动态建造过程。磷灰石单矿物多法定年在解译盆-山耦合过程与机制的研究中发挥着越来越突出的作用。 | 邓宾 曾璐 周庆 姜磊 David Chew | 2017 | 地质科技情报2017,36,1: | 3 |
| 5 | Prevalence of Plateau Iris in Primary Angle Closure Suspects显示文摘 | Rajesh S. Kumar Mani Baskaran Paul T.K. Chew David S. Friedman Swati Handa Raghavan Lavanya Lisandro M. Sakata Hon-Tym Wong Tin Aung | 2008 | Ophthalmology2008,,3: | 2 |
| 6 | Design and implementation of an identification system in construction site safety for proactive accident prevention 显示文摘 | Yang Huanjia Chew David A S Wu Weiwei | 2011 | Accident Analysis and Prevention2011,,8: | 1 |
| 7 | Factors Affecting Quality of Dried Low-Rank Coals显示文摘 | Muthusamy Karthikeyan Joshua V. M. Kuma Chew Soon Hoe David Low Yi Ngo | 2007 | Drying Technology2007,,10: | 1 |
| 8 | Enoxaparin versus unfractionated heparin as antithrombin therapy in patients receiving fibrinolysis for ST-elevation myocardial infarction显示文摘 | Elliott M. Antman David A. Morrow Carolyn H. McCabe Frank Jiang Harvey D. White Keith A.A. Fox Divakar Sharma Paul Chew Eugene Braunwald | 2005 | American Heart Journal2005,,2: | 1 |
| 9 | A prospective ultrasound biomicroscopy evaluation of changes in anterior segment morphology after laser iridotomy in asian eyes显示文摘 | Gus Gazzard David S Friedman Joe G Devereux Paul Chew Steve K.L Seah | 2003 | Ophthalmology2003,,3: | 1 |
| 10 | An integrated information management model for proactive prevention of struck-by-falling-object accidents on construction sites显示文摘 | Weiwei Wu Huanjia Yang Qiming Li David Chew | 2013 | Automation in Construction2013,,: | 1 |
| 11 | Enhanced Steroid Response of a Human Glucocorticoid Receptor Splice Variant显示文摘 | Aaron C. Baker Tajia L. Green Victoria W. Chew Kelly Tung Amir Amini Debora Lim Kiho Cho David G. Greenhalgh | 2012 | Shock2012,,1: | 1 |
| 12 | O- ral immunotherapy with type V collagen in idiopathic pulmo- nary fibrosis 显示文摘 | Wilkes David S Chew Terrence Flaherty Kevin R | 2015 | European Respiratory Journal2015,45,5: | 1 |
| 13 | Factors Affecting Quality of Dried Low-Rank Coals显示文摘 | Muthusamy Karthikeyan Joshua V. M. Kuma Chew Soon Hoe David Low Yi Ngo | 2007 | Drying Technology2007,,10: | 1 |
| 14 | 关于具有测边导坑和有限岩石覆盖层的隧道开口的离散分析(英文)显示文摘目的:针对新加坡的花岗岩地质结构,研究将典型马蹄形隧道挖掘成双拱隧道时岩石支撑的设计问题。利用离散元法分析侧边导坑对隧道主体开口的影响。创新点:1.基于平面应变假设,提出一个针对性的离散元模型以分析侧边导坑的设置对主体隧道支撑的影响;2.此模型适用于解决底下长跨度开口的支撑设计问题,如大众捷运系统隧道和紧贴式双孔隧道的建造,补充了传统经验主义的设计方法。方法:1.采用离散元法对马蹄形隧道开口支撑问题进行非连续分析;2.采用二维平面应变模型简化问题。结论:1.离散元法可用于分析有限岩石覆盖层的失效机制,单隧道支撑要求以及增加侧边导坑后的支撑要求;2.模型计算结果显示,侧边导坑的挖掘使得支柱总的螺栓连接作用力增加了一倍。 | Chia Weng BOON Chee Wei NEO David Chew Chiat NG Victor Chee Wee ONG | 2018 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2018,19,4: | 1 |
| 15 | Least-squares support vector machine approach to viral replication origin prediction显示文摘 | RauI C C David S H Chew K C | 2009 | Informs Journal on Computing2009,22,3: | 1 |
| 16 | Design and implementation of an identification system in construction site safety for proactive accident prevention 显示文摘 | Yang Huanjia Chew David A S Wu Weiwei | 2011 | Accident Analysis and Prevention2011,,8: | 1 |
| 17 | Bare metal stent restenosis is not a benign clinical entity显示文摘 | Michael S. Chen Jim M. John Derek P. Chew David S. Lee Stephen G. Ellis Deepak L. Bhatt | 2006 | American Heart Journal2006,,6: | 1 |
| 18 | Platelet Glycoprotein IIb/IIIa Inhibitors Reduce Mortality in Diabetic Patients With Non–ST-Segment-Elevation Acute Coronary Syndromes显示文摘 | Marco Roffi Derek P. Chew Debabrata Mukherjee Deepak L. Bhatt Jennifer A. White Christopher Heeschen Christian W. Hamm David J. Moliterno Robert M. Califf Harvey D. White Neal S. Kleiman Pierre Théroux Eric J. Topol | 2001 | Circulation: Journal of the American Heart Association2001,,23: | 1 |
| 19 | Simulation of macroscopic deformation using a sub-particle DEM approach显示文摘 | Leela Kempton David Pinson Sheng Chew Paul Zulli Aibing Yu | 2011 | Powder Technology2011,,: | 1 |
| 20 | Towards an Autonomous Real-Time Tracking System of Near-Miss Accidents on Construction Sites显示文摘 | WU Wei-wei YANG Huan-jia DAVID A S CHEW | 2010 | Automation in Construction2010,19,2: | 1 |