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吉林大学学报(地球科学版) 2015年第S1期 180-180页

作者：孙明道徐义刚 simon A.wilde 陈汉林杨树锋中国科学院广州地球化学研究所同位素地球化学国家重点实验室 Curtin University Department of Applied GeologyPerth 6012 浙江大学地球科学系

富锦岩体位于佳木斯地块东缘,紧邻环太平洋增生型完达山造山带,是中国东部最年轻的花岗岩体之一。野外出露点在黑龙江省富锦市东11 km、乌尔虎力山西北坡,GPS位置47°14’9.8"N 132°14’5.8"E。岩体由中粒花岗闪长岩组成,围岩是二叠纪... 详细信息

富锦岩体位于佳木斯地块东缘,紧邻环太平洋增生型完达山造山带,是中国东部最年轻的花岗岩体之一。野外出露点在黑龙江省富锦市东11 km、乌尔虎力山西北坡,GPS位置47°14’9.8"N 132°14’5.8"E。岩体由中粒花岗闪长岩组成,围岩是二叠纪砂岩地层,地层南北走向、近直立,砂岩发生接触热变质。花岗闪长岩具半自形粒状结构,含~50%斜长石、~25%石英、~15%黑云母及~10%碱性长石。锆石长轴~250 um,长宽比~3:1,阴极发光下见明显的振荡环带,为典型花岗岩锆石。15粒锆石SHRIMP U-Pb分析结果得出谐和年龄为(54±1)Ma。围岩砂岩的碎屑锆石颗粒直径50~100 um,SHRIMP锆石U-Pb年龄峰值260、500 Ma,少量属前寒武纪。花岗闪长岩Si O2(质量分数)为68.8%~70.3%,Na2O为3.8%~4.2%,K2O为1.9%~2.3%,富集轻稀土元素及大离子亲石元素,亏损高场强元素,强烈分异的稀土配分模式[(La/Yb)N>22]、高Sr/Y比(Sr/Y>60)、高Ba((699~764)×10-6)和Sr((707~735)×10-6)质量分数等特征表明其为埃达克质高钡锶花岗岩。其初始87Sr/86Sr比值为0.706 099~0.707 265,εNd(t)值为-0.15~-2.07,(208Pb/204Pb)t=38.244~38.279,(207Pb/204Pb)t=15.562~15.576,(206Pb/204Pb)t=18.353~18.376,锆石εHf(t)值为+3~+7,Sr-Nd-Pb-Hf同位素特征与佳木斯地块东缘及完达山造山带西缘的二叠纪岛弧岩浆岩[1]十分接近,反映了EM2同位素特征,而与中国东北新生代以双辽[2]、伊通—大屯[3]玄武岩为代表的DMM软流圈亏损地幔来源物质和以五大连池[4]、牡丹江黄花—海浪玄武岩[5]、永胜正长岩体[6]为代表的高钾质EM1岩石圈富集地幔来源物质有显著差异,亦未见岩浆混合的证据。因此,富锦花岗闪长岩更可能是来自由二叠纪岛弧岩石组成的玄武质下地壳的部分熔融,而不是来自新生代幔源岩浆的结晶分异或岩浆混合。结合研究区周缘广泛发育古近纪断陷盆地的区域地质背景,认为富锦岩体的形成与古近纪太平洋板块俯冲脱水、玄武质岩浆底侵以及陆壳伸展有关。本研究提供了一个新的埃达克质岩石形成于板内伸展环境下的案例[7]。

关键词：花岗闪长岩同位素特征 SHRIMP 佳木斯地块古近纪岩石成因碎屑锆石造山带亏损地幔断陷盆地

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华北中部造山带在2560~1850Ma期间发生了什么地质事件?

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地质学报 2006年第12期80卷 1966-页

作者：赵国春刘树文孙敏李三忠 simon A.wilde 夏小平张健何艳红香港大学地球科学系北京大学造山带与地壳演化教育部重点实验室北京大学地球与空间科学学院100871 中国海洋大学海洋地球科学学院青岛266003 Department of Applied Geology Curtin University of TechnologyBentley 6102Western Australia

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应用大陆板内孪生火山探索富集地幔中再循环洋壳组分的小尺度不均一性

应用大陆板内孪生火山探索富集地幔中再循环洋壳组分的小尺度不均...

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2022年中国地球科学联合学术年会

作者：孙明道徐义刚 Esteban Gazel 李杰张万峰张乐贺鹏丽肖媛媛 Fred Jourdan simon A.wilde

前人对中国东部新生代玄武岩的研究揭示出地幔源区中存在有再循环洋壳组分,但如夏威夷、冰岛等地发现的一截完整(上/下)洋壳发生再循环的例子尚未有所报导。由于结晶分异及同化混染作用,也很少有大陆板内火山记录到幔源原始岩浆,制约了... 详细信息

前人对中国东部新生代玄武岩的研究揭示出地幔源区中存在有再循环洋壳组分,但如夏威夷、冰岛等地发现的一截完整(上/下)洋壳发生再循环的例子尚未有所报导。由于结晶分异及同化混染作用,也很少有大陆板内火山记录到幔源原始岩浆,制约了研究地幔源区组成。

关键词：汪清河结晶分异不均一性碱玄岩

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汪清河苦橄岩的时代及岩石成因

汪清河苦橄岩的时代及岩石成因

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中国矿物岩石地球化学学会第17届学术年会

作者：孙明道张乐贺鹏丽洪路兵夏小平李杰贺怀宇杨列坤 Fred Jourdan simon A.wilde 任钟元徐义刚中国科学院广州地球化学研究所同位素地球化学国家重点实验室中国科学院地质与地球物理研究所岩石圈演化国家重点实验室澳大利亚科廷大学行星与地球科学系

＜正＞中国东部广泛分布的新生代玄武岩是研究东亚大地幔楔和西太平洋俯冲再循环的理想对象,但对应的苦橄岩一直未被发现,制约了恢复原始岩浆成分和识别地幔源区中的再循环组分。作者首次在中国东北延边地区发现了新生代苦橄岩,将其命... 详细信息

＜正＞中国东部广泛分布的新生代玄武岩是研究东亚大地幔楔和西太平洋俯冲再循环的理想对象,但对应的苦橄岩一直未被发现,制约了恢复原始岩浆成分和识别地幔源区中的再循环组分。作者首次在中国东北延边地区发现了新生代苦橄岩,将其命名为汪清河苦橄岩。汪清河苦橄岩产自中国东北延边自治州汪清县的大汪清河火山,构造上位于华北克拉通-中亚造山带东段-古太平洋造山带三者相接的地区。大汪清河火山发育于北东向的汪清河断

关键词：苦橄岩年代学岩石成因

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The Qiyugou gold-bearing breccia pipes,Xiong'ershan region,central China:fluid-inclusion and stable-isotope evidence for an origin from magmatic fluids

The Qiyugou gold-bearing breccia pipes,Xiong'ershan region,c...

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中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Hong-Rui Fan~(a*),Fang-Fang Hu~a,simon A.wilde~b,Kui-Feng Yang~a and Chen-Wei Jin~a ~aKey Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,P.O.Box 9825,Beijing 100029,China ~bDepartment of Applied Geology, Curtin University of Technology,GPO Box U1987,Perth 6845,Australia

Gold ores of the Qiyugou deposit in the eastern part of the Xiong’ershan region are hosted in breccia pipes within a Mesozoic granitic *** stages of hydrothermal alteration activity are recognized within the Qiyugou *** first stage of hydrothermal metasomatism produced extensive K-feldspar *** second stage is associated with deposition of gold and base metal *** third stage is defined by fine quartz-calcite±pyrite veinlets containing minor *** types of fluid inclusions are present in quartz and calcite within the breccia matrix and ***Ⅰare solid(s)-bearing high-salinity fluid inclusions,with homogenization temperatures up to 420℃and high salinities of 31-47 wt%NaCl ***Ⅱare two-phase,vapourrich fluid inclusions that homogenized between 265 and 476℃,with low to moderate salinities(7.2-19.8 wt%NaCl equivalent).Homogenization of TypeⅢtwo-phase, liquid-rich fluid inclusions takes place at temperatures between 109 and 253℃,with salinities of 3.9-14.3 wt%NaCl *** IV two/three-phase carbonic fluid inclusions are only found in calcite-quartz veins cutting wall rocks in the upper parts of the pipes or in adjacent country rocks,with homogenization temperatures that range from 239 to 315℃and salinities between 9.2 and 12.2 wt%NaCl *** coexistence of TypesⅠandⅡin the middle parts of the breccia pipes suggests that these fluid inclusions either resulted from trapping of boiling fluids or represented immiscible fluids, most likely derived from a granitic *** fluid history,reflected in the fluidinclusion characteristics,was complex,involving variable amounts of boiling,cooling and mixing in the breccia pipe system.δDo values(-101.7 to-60.1‰) andδ O(HO) values(0.3-7.5‰) calculated from inclusion water in quartz on the basis of mean-to-maximum fluid inclusion homogenization temperatures are intermediate between magmatic wat er and surface-derived fluids(meteoric water).Ranges forδS values o

关键词： fluid inclusion stable isotope gold-bearing breccia pipes Qiyugou Xiong’ershan region

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On Integral Equation and Least Squares Methods for Scattering by Diffraction Gratings

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Communications in Computational Physics 2006年第6期1卷 1010-1042页

作者： Tilo Arens simon N.Chandler-wilde John A.DeSanto Mathematisches Institut II Univeristat Karlsruhe76128 KarlsruheGermany Department of Mathematics University of ReadingWhiteknightsPO Box 220Berkshire RG66AXUnited Kingdom Mathematical and Computer Sciences Colorado School of MinesGoldenCO 80401USA

In this paper we consider the scattering of a plane acoustic or electromagnetic wave by a one-dimensional,periodic rough *** restrict the discussion to the case when the boundary is sound soft in the acoustic case,perfectly reflecting with TE polarization in the EM case,so that the total field vanishes on the *** propose a uniquely solvable first kind integral equation formulation of the problem,which amounts to a requirement that the normal derivative of the Green’s representation formula for the total field vanish on a horizontal line below the scattering *** then discuss the numerical solution by Galerkin’s method of this(ill-posed)integral *** point out that,with two particular choices of the trial and test spaces,we recover the so-called SC(spectral-coordinate)and SS(spectral-spectral)numerical schemes of DeSanto et al.,Waves Random Media,8,315-414,*** next propose a new Galerkin scheme,a modification of the SS method that we term the SSmethod,which is an instance of the well-known dual least squares Galerkin *** show that the SSmethod is always well-defined and is optimally convergent as the size of the approximation space ***,we make a connection with the classical least squares method,in which the coefficients in the Rayleigh expansion of the solution are determined by enforcing the boundary condition in a least squares sense,pointing out that the linear system to be solved in the SSmethod is identical to that in the least squares *** this connection we show that(reflecting the ill-posed nature of the integral equation solved)the condition number of the linear system in the SSand least squares methods approaches infinity as the approximation space increases in *** also provide theoretical error bounds on the condition number and on the errors induced in the numerical solution computed as a result of *** results confirm the convergence of the SSmethod and illustrat

关键词： Helmholtz equation first kind integral equation spectral method condition number

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A systematic assessment of architectural approaches for solving the housing problem in Iraq

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Frontiers of Architectural Research 2018年第4期7卷 561-572页

作者： Omar Al-Hafith Satish B.K. simon Bradbury Pieter de wilde University of Plymouth School of ArtDesign and ArchitecturePlymouthUK De Montfort University Leicester School of ArchitectureLeicesterUK

Iraq experiences housing shortage of around 1–1.5 million units with low production rate. Managing this challenge requires integrated efforts across a number of fields. One way forward is to develop an integral and appropriate architectural solution. In Iraq, it remains unknown which of the possible architectural approaches is adequate to address its housing challenges while considering occupants׳ preferences. Aiming at helping in forming a solution, this study critically assesses the possible building patterns and construction approaches, which represent the main architectural solutions׳ framework. To achieve this aim, an extensive literature review was conducted that explores possible alternatives and housing requirements. Alternatives were assessed by comparing and contrasting their adequacy in satisfying Iraqis׳ preferences and the housing sector requirements. The assessment included conducting two surveys: a public Iraqis survey and an experts survey. The former was used to determine Iraqis׳ residential priorities and the latter to evaluate the adequacy of the defined alternatives in satisfying a set of housing requirements. A total number of 410 Iraqis participated in the first survey and fourteen Iraqi experts in the second. Based on the results, this paper suggests mass construction of multi-family courtyard residential buildings as a solution and discusses future research efforts.

关键词： Housing in Iraq Housing patterns Construction approaches Housing requirements Architectural solution

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Calibrating SECCM measurements by means of a nanoelectrode *** intrinsic oxygen reduction activity of PtNi catalyst nanoparticles

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Nano Research 2022年第2期15卷 1564-1569页

作者： Emmanuel Batsa Tetteh Tobias Loffler Tsvetan Tarnev Thomas Quast Patrick wilde Harshitha Barike Aiyappa simon Schumacher Corina Andronescu Richard D.Tilley Xingxing Chen Wolfgang Schuhmann Analytical Chemistry-Center for Electrochemical Sciences Faculty of Chemistry and BiochemistryRuhr University BochumUniversitatsstr.150D-44780 BochumGermany Chemical Technology III Faculty of Chemistry and CENIDE-Center for NanointegrationUniversity Duisburg EssenCarl Benz Str.199D-47057 DuisburgGermany School of Chemistry and Australian Centre for NanoMedicine University of New South WalesSydney 2052Australia Research Group of Functional Materials for El

Scanning electrochemical cell microscopy(SECCM)is increasingly applied to determine the intrinsic catalytic activity of single electrocatalyst *** is especially feasible if the catalyst nanoparticles are large enough that they can be found and counted in post-SECCM scanning electron microscopy ***,this becomes impossible for very small nanoparticles and hence,a catalytic current measured in one landing zone of the SECCM droplet cannot be correlated to the exact number of catalyst *** show,that by introducing a ruler method employing a carbon nanoelectrode decorated with a countable number of the same catalyst particles from which the catalytic activity can be determined,the activity determined using SECCM from many spots can be converted in the intrinsic catalytic activity of a certain number of catalyst nanoparticles.

关键词： intrinsic electrocatalytic activity nanoelectrochemistry scanning electrochemical cell microscopy(SECCM) PtNi nanoparticles single entity electrochemistry alkaline medium

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