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U-Pb的相关文献在1989年到2022年内共计142篇，主要集中在地质学、金属学与金属工艺、建筑科学 等领域，其中期刊论文139篇、会议论文2篇、专利文献1篇；相关期刊44种，包括岩石学报、中国地质、地质学报等； 相关会议2种，包括第八届全国同位素地质年代、同位素地球化学学术讨论会、第七届全国同位素地质年代学同位素地球化学学术讨论会等；U-Pb的相关文献由600位作者贡献，包括吴元保、郑永飞、LI等。

U-Pb—发文量

期刊论文>

论文：139篇 占比：97.89%

会议论文>

论文：2篇 占比：1.41%

专利文献>

论文：1篇 占比：0.70%

总计：142篇

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U-Pb

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  • 1. Genetic links of porphyry Mo-epithermal Pb–Zn–Ag mineralization system:a case study of the Shipingchuan polymetallic deposit,South China
    • Yongbin Wang； Peiling Feng； Lingli Zhou； Qingdong Zeng
    • 摘要： Compared with the porphyry Cu-epithermal Au mineralization system,detailed studies on the porphyry Mo-epithermal Pb–Zn–Ag–Au mineralization are rare due to limited exposures.The Shipingchuan polymetallic deposit,located in the South China Mo Province(SCMP)represents a typical example containing both porphyry Mo and epithermal Pb–Zn–Ag mineralization.The Mo mineralization mainly occurs as molybdenite-quartz veins in veinlets or as disseminated molybdenite within the potassic,silicic,and sericitic syenogranite.The Pb–Zn–Ag mineralization is characterized by veinlet-type sphalerite–galena–pyrite–quartz–calcite vein within the volcanic rocks accompanied with silicifi cation and propylitization.Five molybdenite samples yield a Re–Os isochron age of 104.7±0.7 Ma that is consistent with the zircon age(107.5±2.1 Ma)of the ore-bearing syenogranite within errors.Together with previous reported Ar–Ar ages(106.6–121.8 Ma)of Pb–Zn–Ag related volcanic rocks,the Mo and Pb–Zn–Ag mineralization belong to a magmatic-hydrothermal event in the Early Cretaceous.Meanwhile,the total Re contents of molybednite range from 1.28 to 45.55 ppm,indicating the ore-forming materials were from a mixture between the mantle and crustal material.Moreover,previous sulfur isotopic values(3.7–4.3‰)of the pyrites from the porphyry Mo mineralization were consistent with the reported range of 4.0–6.1‰of the sphalerites from the Pb–Zn–Ag mineralization,implying that the sulfur of two-types of mineralization was derived from magma.The above-mentioned spatial,temporal,and isotopic lines of evidence suggest that the Mo and Pb–Zn–Ag mineralization of the Shipingchuan deposit was formed from the same metallogenic system.In consideration of regional tectonic evolution history,we propose that the porphyry Mo-epithermal Pb–Zn–Ag mineralization formed in an extensional tectonic setting caused by the continued rollback and the eventual slab break-off of the subducting PaleoPacifi c plate.
  • 2. Timing of granite pegmatite-type high-purity quartz deposit in the Eastern Qinling,China:constraints from in-situ LA-ICP-MS trace analyses of quartz and monazite U–Pb dating
    • Yong Zhang； Haibo Zhao； Lei Liu； Jiayong Pan； Likuan Zhu； Guoqi Liu； Xiaotian Zhang
    • 摘要： Eastern Qinling,China is one of the important rare metal metallogenic provinces with extensively distributed granite pegmatite dikes.The No.5 granite pegmatite intruded into the granitic gneiss of the Qinling Group,and the major minerals are quartz(39.8%),K-feldspar(18.8%),albite(36.3%),muscovite(3.4%),and garnet(1.1%).Monazite U–Pb isotopic dating indicates that the No.5 pegmatite from the Eastern Qinling was emplaced at ca.420.2±2.2 Ma,which confirms that highpurity quartz mineralization probably formed during the Early Devonian.In-situ laser ablation inductively coupled plasma mass spectrometry analysis of quartz show that quartz samples from Eastern Qinling have total trace element concentrations(Al,Ti,Sc,Li,B,Cr,Mn,and Fe)ranging from 23.2 to 52.8 ppm,slightly higher than the quartz(impurity element content from 13.4 to 25.9 ppm)of the Spruce Pine high-purity quartz deposit in western North Carolina.The No.5 pegmatite of Eastern Qinling could be defined as one high-purity quartz deposit of China.
  • 3. 辽东半岛岫岩地区晚侏罗世侵入岩特征及地质意义
    • 李琛； 何俐
    • 摘要： 根据辽东半岛岫岩地区晚侏罗世花岗岩锆石U-Pb与Rb-Sr年龄测试结果,表明三道沟岩体为具有埃达克岩特征的I型花岗岩。在埃达克岩成因图解中,三道沟岩体落入加厚下地壳成因区域,且高K、低Mg^(#)和Ni等地球化学特征与“C”型埃达克岩相似,形成于压力较高的加厚下地壳部分熔融。晚侏罗世红石砬子、骆驼砬子及早白垩世杨家堡子岩体明显Nb、Ta异常,Ta/Th值较低,应与板块俯冲有关,且与高山提出的由拆沉作用形成的岩浆地球化学特征一致,即LREE与HREE分异明显,高Sr/Y、Th/U、Mg^(#),低Lu/Hf,表明岩浆形成与由板块俯冲导致的拆沉作用有关。晚侏罗世三道沟岩体、红石砬子、骆驼砬子为准铝质或弱过铝质、中-高钾钙碱性系列的I型花岗岩,具有活动大陆边缘花岗岩的岩石组合特征。因此,辽东地区晚侏罗世岩浆活动应与古太平洋板块俯冲碰撞有关。
  • 4. 辽东半岛岫岩地区早白垩世侵入岩特征及地质意义
    • 何俐； 李琛
    • 摘要： 辽东半岛岫岩王家堡子地区位于胶-辽-吉造山/活动带中段。本文对该区内的二长花岗岩与花岗斑岩(杨家堡岩体与石庙沟岩体)进行了U-Pb年代学与地球化学特征研究,并探讨了其地质意义。结果表明:杨家堡岩体与石庙沟岩体侵位年龄分别为(127.4±0.57)Ma和(123±1.6)Ma,年代为早白垩世。早白垩世杨家堡岩体明显的Nb、Ta异常,Ta/Th值较低,应与板块的俯冲有关,且与高山提出由拆沉作用形成的岩浆地球化学特征一致,即LREE与HREE分异明显、高Sr/Y、Th/U、Mg^(#),低Lu/Hf值,表明岩浆形成与由板块俯冲导致的拆沉作用有关。早白垩世石庙沟岩体A/CNK=1.05~1.11,为铝质A型花岗岩,形成于长英质地壳的脱水部分熔融。早白垩世杨家堡岩体为准铝质或弱过铝质、中-高钾钙碱性系列的I型花岗岩,具有活动大陆边缘花岗岩的岩石组合特征。综上所述,辽东地区燕山期岩浆活动应与古太平洋板块俯冲碰撞有关,由碰撞产生的挤压造山作用结束于123±1.6Ma,开始进入碰撞后拉伸的构造环境,开启了岩石圈减薄的序章。
  • 5. 阿尔金山东段黑沟脑侵入体地球化学特征及锆石U-Pb年龄
    • 李小强； 王军； 张海峰； 胡永兴； 王海博
    • 摘要： 阿尔金山东段黑沟脑广泛发育中酸性侵入体,黑沟脑地区主要由花岗斑岩、正长花岗岩构成。岩石地球化学显示,该岩体具有较高的SiO2含量,全碱Na_(2)O+K_(2)O含量平均为9.65%,富铝、富钾的特征,里特曼指数(δ)介于1.73~7.63,均值为4.11,铝质指数(A/CNK)为0.88~1.03,平均为0.97,为碱性系列准铝质岩石;具有较高的分异程度;稀土元素总量SREE介于211.54×10^(-6)~569.58×10^(-6),均值为350.72×10^(-6),其稀土配分模式右倾,整体表现出轻重稀土分馏明显,(La/Yb)N=8.15~21.80,δEu为0.31~0.60,均值为0.45,表现出强烈的Eu负异常,富集高场强元素Zr和Hf,Nb、Ta表现出亏损,亏损Ba、Sr等大离子亲石元素(LILE)。通过对岩石成因、源岩及构造环境分析认为,本区侵入体可能以壳源变质杂砂岩的部分熔融物质为主,并有幔源物质参与,为经历了结晶分异作用形成的Ⅰ型花岗岩类;LA‑ICP‑MS锆石U‑Pb定年确定其形成时代为490.4±2.9 Ma,表明寒武纪在阿尔金东段南阿尔金洋已开始向南俯冲且与北祁连花岗质岩浆事件有较好的对应性。
  • 6. Detrital zircon geochronology and tectonic implications of the Mesoproterozoic Gaoshanhe Group in south margin of North China Craton 北大核心 CSCD CSTPCD
  • 7. 金红石的研究现状及地质学意义
    • 韦艳玲； 郭静涟
    • 摘要： 金红石,是含钛的主要矿物之一,其资源量分布不均.近年来关于金红石的研究,主要集中在中-高级变质岩,沉积岩中.主要的几个应用大致如下:①金红石放射性测年体系研究;②金红石的微量元素研究:Nb和Ta、Cr和Nb;③金红石Zr温度计的应用,提高P-T-t轨迹精度,对变质作用过程进行反演;④金红石是很好的标型矿物,可指示超高压变质过程中有限的流体活动和快速的板块俯冲一折返过程.
  • 8. Early Mineralization Age of the Hengjian Uranium Deposit: Constraints from Zircon SIMS U-Pb Dating
    • HE Sheng； LI Ziying； GUO Dongfa； WANG Yongjian； ZHANG Chuang； GUO Jian； FAN Zengwei
    • 摘要： Objective The Hengjian uranium deposit is a typical hydrothermal deposit in the Xiangshan uranium ore field.The uranium mineralization ages of the Xiangshan deposits are poorly constrained,and only a few mineralization ages using the pitchblende U–Pb method have been published.These ages are commonly discordant and dispersed for abundant inclusions and an open U–Pb system.Zircon grains after strong hydrothermal alteration are usually characterized by high common Pb contents,and their U–Pb isochron ages recorded the hydrothermal alteration event without interference of common Pb components.The Hengjian gray/grayish-green granite porphyry experienced strong alteration by hydrothermal fluids during the pervasive uranium mineralization in the Xiangshan uranium ore field.Uranium mineralization in the Hengjian deposit may had different stages,and strong hydromicatization alteration occurred at a relatively early stage.Their altered zircon U–Pb isochron ages possibly represent relatively early mineralization age of the Xiangshan uranium deposits.Altered zircon grains from the Hengjian granite porphyry were analyzed using the secondary ion mass spectrometry(SIMS)U-Pb method in this study,and U–Pb isochron ages were measured to constrain the relatively early mineralization age of the Hengjian uranium deposit.
  • 9. Late Carboniferous Vertical Crustal Growth in Northern North China Craton: Evidence from Zircon U-Pb Age and Depleted Hf Isotope of the Dongwanzi Syenite
    • MA Xu； CHEN Bin； CHEN Jiafu
    • 摘要： Objective Though the Central Asian Orogenic Belt (CAOB) is characterized by widespread Phanerozoic crustal growth,there is little juvenile crust documented in its southeastern segment,northern margin of the North China Craton(NCC)(Zhang et al,2007,2009).Late Carboniferous Dongwanzi ultramafic-mafic cumulate complex occurs in northern margin of the NCC and is intruded by a syenite with depleted Sr-Nd isotopes (Ma et al.,2014).However,the age and petrogenesis of this syenite is poorly constrained.In this study,we present new petrological,zircon U-Pb and Hf isotopic data of the Dongwanzi syenite,in order to put insights on its formation age and petrogenetic relationship with cumulates.
  • 10. Zircon U-Pb Chronology and Whole-rock Sr-Nd Isotope Compositions of Granite Porphyry in the Kaladaban Area of the Northern Altyn
    • JIA Wenbin； LI Yongsheng； MI Kuifeng； YU Xiaofei
    • 摘要： Objective The Altyn Tagh marks the northern margin of the Qinghai-Tibet Plateau and lies between the Tarim block to the north and the Qaidam block,Qilian Orogen,and Kunlun orogenic belt to the south.The Altyn Tagh region contains ophiolite,high-to ultrahigh-pressure metamorphic rocks,and igneous rocks.Previous research has virified the occurrence of continental rifting,subduction,slab roll-back,and collision between the Tarim block and Proto-Tethys oceanic plate.Moreover,Kaladaban volcanic rocks are mainly distributed in the north Altyn region.Studies of the magmatic evolution of this region have proposed that Altyn oceanic plate was subducted during the Ordovician(Han et al.,2012;Wang et al.,2017).However,the specific timing and other aspects of the subduction are debated,and an investigation of granite porphyry in the Kaladaban area would improve our understanding of this subduction event.In this study,we present new U-Pb zircon dating result and Sr-Nd isotope composition data for granite porphyry from the North Altyn region.The objective is to constrain the timing of subduction of the North Altyn oceanic plate and establish the petrogenesis and magma source of the granite porphyry.
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