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利用中子活化分析研究某些元素在植物和土壤间的分配

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核农学通报 1981年第2期 50-54页

作者： G.D.Kanias S.m.Philianos 安成福

某些元素是植物适宜生长所必需的,但其数量及作用尚不完全清楚。中子活化分析用于测定圆叶嚏根草(Helleborus cyclophyllus Boiss)植株的不同器官和生长这种植物的土壤中As、ba、Br、Ce、Eu、Au、Hf、La,Lu、Sm、Sc、ta、Th、Yb等元素,... 详细信息

某些元素是植物适宜生长所必需的,但其数量及作用尚不完全清楚。中子活化分析用于测定圆叶嚏根草(Helleborus cyclophyllus Boiss)植株的不同器官和生长这种植物的土壤中As、ba、Br、Ce、Eu、Au、Hf、La,Lu、Sm、Sc、ta、Th、Yb等元素,发现来自土壤的Br在植株中有选择地积累,叶柄中的Br含量为土壤中的四倍多,而叶片中的Br约为土壤中Br的二倍。其他测定元素在植物器官中表现出一定的分配,但没有选择性积累。

关键词：植物 ba 痕量元素植株 ta 微量元素植物样品元素含量放射化学分析中子活化分析植物体不同器官必需元素

Crust-mantle interaction beneath the Luxi Block,eastern North China Craton:Evidence from coexisting mantle-and crust-derived enclaves in a quartz monzonite pluton

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Crust-mantle interaction beneath the Luxi Block,eastern Nort...

江南东段朱溪钨(铜)多金属矿床的地质特征与成矿背景

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： Ting-Guang Lan Hong-Rui Fan m.Santosh Fang-Fang Hu Kui-Feng Yang Yue-Heng Yang Yongsheng Liu Key Laboratory of mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences School of Earth Sciences and Resources China University of Geosciences Beijing State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences State Key Laboratory of Geological Processes and mineral Resources China University of Geosciences Wuhan

The Laiwu quartz monzonite in the Luxi Block of eastern North China Craton(NCC)is characterized by the presence of abundant plagioclase amphibolite and gabbro-diorite *** we present LA-ICPmS zircon U-Pb ages which show that the host quartz monzonite was emplaced at 129,8±1.0 ma,whereas the protolith of the plagioclase amphibolite enclaves formed during early Paleoproterozoic The gabbro-diorite enclaves were produced simultaneously with or slightly earlier than the formation of the host quartz monzonite,Combined with the Archean and Paleoproterozoic zircons as well as the low tNd(0)values(-18.4 to-18.0)in the plagioclase amphibolite enclaves, the equilibrium temperature and pressure conditions(645-670 0C and 4.8-6.5 Kb)suggest that the plagioclase amphibolite enclaves are fragments of the middle *** gabbro-diorite enclaves mainly originated from an enriched lithospheric mantle metasomatized by melts/fluids derived from the continental oust,as indicated by their low SiO2(54.4-54.7 wt.%)and high mgO(10.9-11.1 wt.%)contents as well as the negative ENd(t)values(-13.5 to -10.7)and enrichment of LILEs(e.g,ba and Sr)and depletion of HFSEs(e.g.,Nb,ta,P and Ti).Compared with the ancient crustal rocks and the mafic plutons considered to have been derived from lithospheric mantle in the Lux Block,the moderate ENd(t)(-15.7 to-15.1)and q(t)(-20.7 to-13.0)values of the quartz monzonite in our study suggest that both mantle-and crust-derived melts were involved in the magma *** we propose a model involving magma mixing between mantle-and crust-derived melts for the formation of the quartz monzonite. Since significant crust-mantle interaction is recorded not only in the quartz monzonite and its enclaves in the Luxi Block but also in the other granitoids widespread in the NCC,it is considered that large-scale crust-mantle interaction and magmatic underplating were associated with the mesozoic lithospheric mantle thinning and crustal reactivation in the eas

关键词： Quartz monzonite Enclave Crustal reactivation Crust-mantle interaction North China Craton

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中国科学：地球科学 2015年第4期45卷 1799-1818,1-6页

作者：陈国华舒良树舒立旻张诚欧阳永棚内生金属矿床成矿机制研究国家重点实验室南京大学地球科学与工程学院南京210093 江西省地质矿产勘查开发局九一二大队鹰潭335001

江西朱溪白钨（铜）多金属矿是近年发现的一个特大型矿床,发育在富含钨铜元素的新元古代泥砂质岩石基底之上,产在燕山期花岗岩与石炭-二叠纪灰岩的接触带.与矿化有关的花岗岩主要是等粒状、中-粗粒状花岗岩和花岗斑岩.存在矽卡岩白钨（... 详细信息

江西朱溪白钨（铜）多金属矿是近年发现的一个特大型矿床,发育在富含钨铜元素的新元古代泥砂质岩石基底之上,产在燕山期花岗岩与石炭-二叠纪灰岩的接触带.与矿化有关的花岗岩主要是等粒状、中-粗粒状花岗岩和花岗斑岩.存在矽卡岩白钨（铜）矿和花岗岩白钨矿两种矿化类型,前者规模大,品位富,后者规模小,品位低.在塔前-赋春盆地,其NW边界呈逆断层、SE边界呈角度不整合与元古代基底接触,而石炭-二叠纪多个岩组中灰岩的钨铜元素含量都很高.矿区外围与矿区内花岗岩类的主量元素含量差别不大,其A/CNK值均〉1.1,属富钾的强过铝质花岗岩.在微量元素上,矿区内花岗岩比外围花岗岩的？Eu值更小,更具显著的Eu负异常,富集Rb,U,ta,Pb和Hf,亏损ba,Ce,Sr,La和Ti,属于演化程度更高的高分异S型花岗岩.受流体作用的影响,矿区内岩体硫化物矿化明显,SO3平均含量0.2%.和外围岩体相比,矿区内花岗岩？Eu和稀土总量均偏低,暗示外围与矿区花岗岩具有一定演化继承关系.外围与矿区岩体中的锆石U-Pb年龄为152~148 ma.通过花岗岩中原位锆石Lu-Hf同位素分析,计算得到的？Hf（t）值均为负值,多数在？6~？9之间,TDm2值集中在1.50~1.88 Ga（峰值1.75 Ga）,表明花岗质岩浆来自古老地壳物质的部分熔融.本文还从地层中和含矿岩体中的矿质含量、热液蚀变、控矿构造等方面对其成矿、控矿条件进行了讨论,提出朱溪矿床经历了花岗岩浆斜向侵位、矽卡岩矿化、降温蚀变、硫化物金属沉淀等多阶段演化的认识,总结出该矿床＂东铜西钨、铜浅钨深、早钨晚铜＂的成矿规律.

关键词：钨(铜)多金属矿晚中生代花岗岩石炭-二叠纪碳酸盐岩成矿背景浮梁县朱溪江南东段

起源于三尖瓣环顶部的特发性室性期前收缩心电图特点和导管消融治疗

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中国介入心脏病学杂志 2019年第9期27卷 499-505页

作者：王琎龙德勇蒋晨曦桑才华汤日波喻荣辉李松南刘相飞杜昕董建增马长生北京市心肺血管疾病研究所首都医科大学附属北京安贞医院心内科北京100029 胜利油田中心医院心内科

目的探讨起源于三尖瓣环(ta)顶部的室性期前收缩(PVC)体表心电图特点、腔内心电图特征和导管消融治疗效果。方法纳入首都医科大学附属北京安贞医院2016年1月至2016年12月共263例室性心律失常患者,其中220例行导管消融治疗,证实起源于ta... 详细信息

目的探讨起源于三尖瓣环(ta)顶部的室性期前收缩(PVC)体表心电图特点、腔内心电图特征和导管消融治疗效果。方法纳入首都医科大学附属北京安贞医院2016年1月至2016年12月共263例室性心律失常患者,其中220例行导管消融治疗,证实起源于ta顶部的PVC患者共8例,分析8例患者心电图特点。结果 8例患者全部消融成功,随访6个月无复发。体表心电图QRS波均呈左束支传导阻滞样图形,Ⅰ导联R波高于窦性心律时[(0.75±0.12)mV比(0.93±0.17)m V,Pta顶部的PVC具有一定的心电图特征,本研究通过体表心电图早期识别起源部位,采用特殊的导管到位方式,均成功通过导管消融术有效终止PVC发作。

关键词：三尖瓣环室性期前收缩心电图特征导管消融

СЛЕДЫ ОЛЕДЕНЕНИЙ ВЕЛИКОЙ ЛЕДНИКОВОЙ ЭПОХИ В КИТАЕ

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Science in China,Ser.A 1962年第4期 511-528页

作者：孙殿卿楊怀仁 Инсмцмум Нанкцнскц унце рсцмем еоцнамцкц еооцческо Акаемцц прц Мцнцсмерсме еооцц

Reactivation of the Archean lower crust:Implications for zircon geochronology,elemental and Sr-Nd-Hf isotopic geochemistry of late mesozoic granitoids from northwestern Jiaodong Terrane,the North China Craton

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Reactivation of the Archean lower crust:Implications for zir...

НОВАЯ СИСТЕМА ВЫЧИСЛЕНИЯ НЕКОТОРЫХ ФИЗИЧЕСКИХ СВОЙСТВ СИЛИКАТНЫХ СТЕКОЛ

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Kui-Feng Yang Hong-Rui Fan m.Santosh Fang-Fang Hu Simon A.Wilde Ting-Guang Lan Li-Na Lu Yong-Sheng Liu Key Laboratory of mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Division of Interdisciplinary Science Faculty of ScienceKochi UniversityKochi 780-8520Japan Geoscience Frontiers China University of Geosciences State Key Laboratory of Geological Processes and mineral Resources China University of Geosciences

The late mesozoic granitoids widely distributed in the nortliwestern Jiaodong Terrane are important markers of cratonic destruction and lithospheric thinning of the eastern North China Craton(NCC).Here we investigate the Late Jurassic Linglong and Luanjiahe granites and report zircon U-Pb emplacement ages of 157- 159 *** rocks also contain abundant late Archean,Paleoproterozoic,Neoproterozoic,early Paleozoic and Triassic inherited zircons,suggesting the involvement of continental crustal materials from both the NCC and Yangtze Craton in magma *** rocks investigated in this study show high NaO + KO and low mgO and are peraluminous,with enrichment in LREEs and LILEs(Rb,ba,U,and Sr) and depletion in HFSEs(Nb,ta,P,and Ti).They also display lowε(t) values and high Sr/Y ratios,comparable to adakitic rocks,suggesting that the Linglong and Luanjiahe granitoids formed under relatively high pressure conditions and were likely derived from the partial melting of the thickened lower crust of the *** Guojialing granodiorites were emplaced in the early Cretaceous(129 ma),and also contain abundant late Archean and Paleoproterozoic inherited *** rocks possess high CaO,TFeO and mgO,and are metalumrnous,with enrichment in LREEs and LILEs and depletion in *** are also characterized by high Sr/Y ratios,and have higherε(t) andε(t) values than the Late Jurassic granitoids,suggesting the involvement of mantle components in the magmatic *** correlate the magma tectonics with the processes accompanying the subduction of the Pacific Plate beneath the NCC and the associated asthenospheric upwelling.

关键词： Geochemistry Zircon geochronology Late mesozoic granitoids Northwestern Jiaodong Terrane North China Craton

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Science in China,Ser.A 1963年第9期 1365-1391页

作者：于福熹 Инсmumуm оnmuкu u mочно механuкu АН Кumая

Evolution of the lithospheric mantle beneath the southeastern North China Craton:Constraints from mafic dikes in the Jiaobei terrain

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Evolution of the lithospheric mantle beneath the southeaster...

桐柏地区火神庙矽卡岩型铁矿床的成矿时代、矿床成因及其与古生代构造-岩浆活动的关系

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： Ya-Chun Cai Hong-Rui Fan m.Santosh Xuan Liu Fang-Fang Hu Kui-Feng Yang Ting-Guang Lan Yue-Heng Yang Yongsheng Liu Key Laboratory of mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Division of Interdisciplinary Science Faculty of ScienceKochi UniversityKochi 780-8520Japan School of Earth Sciences and ResourcesChina University of Geosciences Beijing State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences State Key Laboratory of Geological Processes and mineral Resources China University of Geosciences

Two stages of mafic dikes with ages of-117-116 ma and-95-87 ma,respectively,are identified in the Jiaobei terrain based on zircon U-Pb *** Early Cretaceous mafic-intermediate dikes(ECmDs)and Late Cretaceous mafic dikes(LCmDs)show distinct geochemical and isotopic *** ECmDs are enriched in large ion lithophile elements(LILE,Rb,Sr,ba,U and Th)and light rare earth elements(LREE,La,Cc,Pr,Nd,Sm and Eu) with a strong depletion in high field strength elements(HFSE,Nb,ta,Ti and P).They show uniformly high (Sr/Sr)(0.70841-0.71387),lowε(t)values(-18.1 to-13.2),positive(Pb/Pb)(17.07-17.90)and negativeε(t)(-21,0 to-6,1)values,These rocks were derived from partial melting of an enriched lithospher- ic mantle,and the enrichment of the mantle source resulted from source metasomatism imparted by the melts generated from remelting of the subducted lower crust of the Yangtze Craton(YC),In contrast,the LCmDs show lower Si02(41,5-50.1 wt.%),lack of HFSE depletion and are depleted in whole rock Nd and zircon Hf isotope, They are interpreted to have sourced from a newly accreted depleted lithospheric mantle generated through continuous erosion of older enriched lithospheric mantle by asthenospheric upwelling,leaving out minor rem- nants of the older mantle in the newly accreted lithospheric *** geochemical and isotopic characteristics reported in our study demonstrate that the lithospheric mantle beneath the southeastern North China Craton (NCC)was generally enriched during the Early Cretaceous(～120 ma)and the mechanism of the enrichment may be related to source metasomatism caused by the subducted lower crust of the ***,in Late Creta- ceous,the lithospheric mantle beneath southeastern NCC was highly heterogeneous,which might be related to asthenospheric non-uniform ***～116-87 ma marks the transition from enriched lithospheric mantle to depleted asthenospheric mantle.

关键词： mafic dikes Petrogenesis Lithospheric mantle Jiaobei terrain Southeastern NCC

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中国科学：地球科学 2021年第12期51卷 2163-2183页

作者：柴明春胡浩李建威杜世广侯林枫中国地质大学(武汉)资源学院武汉430074 中国地质大学地质过程与矿产资源国家重点实验室武汉430074 云南省普洱市自然资源和规划局普洱665000

秦岭造山带是中国最重要的金-钼-银铅锌多金属成矿带之一,成矿带内的多金属矿床主要形成于中生代,迄今为止很少发现与古生代区域地质作用有关的矿床.本文报道北秦岭桐柏地区火神庙矽卡岩型铁矿床热液石榴子石和相关岩浆岩的锆石U-Pb年龄... 详细信息

秦岭造山带是中国最重要的金-钼-银铅锌多金属成矿带之一,成矿带内的多金属矿床主要形成于中生代,迄今为止很少发现与古生代区域地质作用有关的矿床.本文报道北秦岭桐柏地区火神庙矽卡岩型铁矿床热液石榴子石和相关岩浆岩的锆石U-Pb年龄,揭示该矿床为早志留世商丹洋俯冲过程中岩浆活动和岩浆热液成矿作用的产物.该矿床以发育透镜状、似层状铁矿体为特征,主要由块状和浸染状磁铁矿、石榴子石、透辉石、绿帘石、角闪石、阳起石等组成.矿石中石榴子石主要由钙铁榴石和少量钙铝榴石(Ad;Gr;~Ad;Gr;)组成,具有富集轻稀土(∑LREE=57.85~103.82ppm)、亏损重稀土(∑HREE=5.50~11.34ppm)与显著的铕正异常(δEu=1.09~1.89)和铈正异常(δCe=1.39~1.69)等特征.这些特征显示矿石中的石榴子石为热液成因,明显不同于桐柏地区区域变质成因石榴子石,后者主要由铁铝榴石-锰铝榴石-钙铝榴石(Al;Sp;Gr;~Al;Sp;Gr;)组成,具有亏损轻稀土(∑LREE=0.14~0.69ppm)、富集重稀土(∑HREE=95.68~841.60ppm)、显著的铕负异常(δEu=0.24~0.51)等特征.此外,矿石中石榴子石发育含子晶多相流体包裹体,进一步支持其为热液成因,因而石榴子石U-Pb年龄可有效约束火神庙铁矿床的成矿时代.本文对采自铁矿石中的两件热液石榴子石样品进行了LAICPmS U-Pb定年,在Tera-Wasserburg谐和图中获得下交点年龄分别为(437±9)ma和(437±10)ma(2σ),与邻近火神庙铁矿床产出的辉长闪长岩(438±4)~(436±3)ma和花岗岩(430±4)ma的锆石U-Pb年龄在误差范围内完全一致,表明火神庙矽卡岩型铁矿床形成于早志留世,与区域古生代岩浆活动有关.与铁矿床时空关系密切的辉长闪长岩和花岗岩富集大离子亲石元素(ba、K、Sr)和轻稀土元素,亏损高场强元素(Nb、ta、P、Ti),全岩样品的(;Sr/;Sr);=0.7039~0.7042,ε;(t)=3.32~4.33,锆石的ε;(t)=13.0~14.9.上述地球化学特征表明与成矿有关的中基性-酸性岩浆岩是商丹洋俯冲过程中弧岩浆活动的产物.早古生代火神庙矽卡岩型铁矿床的厘定表明,以商丹缝合带为界线的北秦岭造山带具有寻找古生代多金属矿床的潜力.

关键词：火神庙矽卡岩型铁矿床桐柏地区北秦岭造山带古生代成矿作用