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9篇 您的检索式:作者名="J.G.LIOU"
    题名 作者 年代 出处 被引量
1柴达木山花岗岩锆石SHRIMP定年显示文摘锆石SHRIMP定年研究表明,祁连南缘柴达木山花岗岩与超高压榴辉岩是构造演化过程中不同阶段形成的,即加里东早期,该区存在洋壳-陆壳碰撞,形成榴辉岩;加里东晚期,存在陆壳-陆壳的碰撞,形成了该花岗岩体.该岩体的SHRIMP年龄为446Ma.吴才来 杨经绥 J.Wooden J.G.Liou 李海兵 孟繁聪 H.Persing A.Meibom 2001科学通报2001,46,20:42
2苏鲁高压-超高压变质带南部花岗片麻岩-花岗岩的多时代演化显示文摘苏鲁高压-超高压变质带中,广泛分布有花岗片麻岩-花岗岩系列,有关其形成的时代和成因机制长期存在争议。岩石露头表现为强烈的片麻理,并且多数和榴辉岩及榴辉岩相岩石密切伴生。其岩石类型有变化,从斜长片麻岩-花岗闪长质片麻岩-二长花岗片麻岩演化到花岗岩。矿物和地球化学变化也较大。从残留的高压和超高压矿物及其退变质反应等,说明它们中有部分曾经历了高压-超高压变质作用。该变质带南部连云港地区4个二长花岗片麻岩-花岗岩岩体中精选的单颗粒锆石,运用Pb-Pb法(质谱计双带源逐层蒸发-沉积法)和U-Pb法(离子探针SHRIMP分析),获得的年龄值跨度大,从859Ma到150Ma,分别属于4个年龄段(时段),但是主要数据集中在600~859Ma和220~250Ma两个时段。锆石的形貌特征研究显示,这些花岗片麻岩-花岗岩是苏鲁高压变质带中长期演化的产物,其物质来源与古元古代,乃至太古宙变质表壳岩密切相关。新元古代大量岩浆结晶型锆石指示了当时存在强烈的花岗岩浆活动,导致大量花岗岩类岩石的形成。古生代(加里东期)和中生代早期(印支期)分别经历了变质作用,尤其是印支期,至少一部分和榴辉岩原岩一起经历了高压-超高压变质作用,并且伴随有地壳部分熔融,引起又一次花岗岩浆活动,再生花岗岩,该区南部东海地区尤为明显。中生代晚?徐惠芬 杨天南 刘福来 J.G.Liou 2001地质学报2001,75,3:32
3Zircon SHRIMP dating of granite from Qaidamshan,NW China显示文摘Zircon SHRIMP dating from Qaidamshan granite shows that the granite age is 446 Ma, similar to that of eclogite in the UHP belt. We think that both granite and eclogite may be formed at different stages during tectonic evolution of this area. Together with other studies we suggested that the collision of ocean and continent plates may occur at the early Caledonian in this area, forming the eclogite, and the collision of continent and continent plates at the late Caledonian, forming the Qaidanishan granite with the zircon SHRIMP age of 446 Ma.WU Cailai YANG Jingsui J.Wooden J.G.Liou LI Haibing SHI Rending MENG Fancong H.Persing A.Meibom 2002Chinese Science Bulletin2002,47,5:13
4Mineral inclusions of zircon and UHP metamorphic evidence from paragneiss and orthogneiss of pre-pilot drill-hole CCSD-PP2 in north Jiangsu Province,China显示文摘Coesite inclusions, together with omphacite, jadeite, garnet and phengite inclusions, were identified in zircons separates from almost all gneissic core samples of pre-pilot drillhole CCSD-PP2 by the Laser Raman spectros-copy and the cathodoluminescence method. These data indicate that gneissic rocks consisting of paragneisses and or-thogneisses ubiquitously experienced UHP metamorphism. This research may be of great significance for an in-depth study of the subduction-exhumation mechanism of the Sulu UHP metamorphic belt and selecting the drilling site for the Chinese Continental Scientific Drilling Project.LIU Fulai XU Zhiqin YANG Jingsui S Maruyama J.G.Liou I.Katayama H.Masago 2001Chinese Science Bulletin2001,46,12:12
5苏鲁地体超高压和非超高压花岗质片麻岩的判别标志——来自锆石中矿物包裹体的证据显示文摘中国大陆科学钻探工程预先导孔CCSD-PP1中存在两类不同性质的花岗质片麻岩,它们的岩相学性质、地球化学特征、锆石中的包体矿物组合和分布规律以及阴极发光图像均存在明显的差别。其中第一类花岗质片麻岩中的锆石呈完好的自形晶,不含任何超高压矿物包体,自晶体中心至边缘均具有典型的岩浆结晶生长环带,表明该类花岗质片麻岩未经历超高压变质作用;第二类花岗质片麻岩中的锆石呈半自形晶—它形晶,晶体核部保存典型的岩浆结晶生长环带,且无超高压矿物包体,具有继承性锆石的特点。而在晶体的过渡带及其与边缘的交界部位,普遍存在以柯石英为代表的包体矿物,表明第二类花岗质片麻岩曾经历了超高压变质作用,且锆石在此变质过程进一步结晶生长,形成新的生长环带。该项成果对于深入探讨苏鲁超高压变质带的俯冲-折返机制及其与岩浆作用的相互关系以及对中国大陆科学钻探工程的选址和实施有着重要的科学意义。刘福来 许志琴 杨经绥 张泽明 S.MARUYAMA J.G.LIOU I.KATAYAMA S.MASAGO 2001地质论评2001,47,2:10
6中国东部的含科石英榴辉岩带的发现——郯庐断裂平移作用的证据显示文摘根据近年来在中朝板块与扬子板块碰撞带上,所发现的科石英或含科石英假象的榴辉岩,推测中国东部的郯庐断裂的左行平移幅度可达550km,活动时代在中生代之后。王小民 夏木林 J.G.Liou 1992中国区域地质1992,,1:3
7US-Russian Civilian Research and Development Fund Project: An origin of microdiamonds in metamorphic rocks of the Kokchetav Massif, Northern Kazakhstan显示文摘The Kokchetav Massif of northern Kazakhstan is a typelocality of occurrence of microdiamonds in ultrahighpressure metamorphic' rocks. It records continental subduction and exhumation from depths greater than 120 km and provides unparalleled insights into mantle dynamics, global material recycling and the processes responsible for the genesis and destruction of continent. Through the support of a US Civilian Development and Research Fund, a group of Russian, US, Taiwan Residents and Kazakhstan geologists visited the reconstructed 800-m underground gallery to conduct field survey and sample collections. This gallery provides a useful geologic laboratory for international community to undertake similar geotectonic or different ecological and environmental studies.N.V.Sobolevt V.S.Shatsky J.G.Liou R.Y.Zhang S.L.Hwang P.Shen H.T.Chu T.F.Yui A.A.Zayachkovsky M.A.Kasymov 2003Episodes2003,26,4:0
8Spatial Distribution and Tectonic Evolution of Ultrahigh-P(UHP) and High-P(HP) Metamorphic Belts in Central and Eastern China显示文摘J.G.Liou W.G.Ernst Xiaomin WANG Ruyuan ZHANG E.Eide Jun LIU S.Maruyama Leslie Ames Gaozhi ZHOU Yuanjun LIU 2016资源环境与工程2016,30,B04:0
9High-pressure/low-temperature Metamorphism in Northern Hubei Province,Central China显示文摘The Qinling-Dabie accretionary fold belt in east-central China represents the E-W trending suture zone between the Sino-Korean and Yangtze cratons. A portion of the accretionary complex exposed in northern Hubei Province contains a high-pressure / low-temperature metamorphic sequence progressively metamorphosed from the blueschist through greenschist to epidote-amphibolite / eclogite facies. The Hongan metamorphic belt can be divided into three metamorphic zones,based on progressive changes in mineral assemblages: Zone Ⅰ,in the south,is characterized by transitional blueschist-greenschist facies; ZoneⅡis characterized by greenschist facies; ZoneⅢ,in the northern most portion of the belt,is characterized by eclogite and epidote-amphibolite facies sequences. Changes in amphibole compositions from south to north as well as the appearance of increasingly higher pressure mineral assemblages toward the north document differences in metamorphic P-T conditions during formation of this belt. Preliminary P-T estimates for Zone I metamorphism are 5 ~ 7 kbar,350 ~ 450℃; estimates for Zone III eclogites are 10 ~ 22 kbar,500 ±50℃. The petrographic,chemical and structural characteristics of this metamorphic belt indicate its evolutionin a northward-dipping subduction zone and subsequent uplift prior to and during the final collisionbetween the Sino-Korean and Yangtze cratons.G.Zhou Y.J.Liu E.A.Eide J.G.Liou W.G.Ernst 2016资源环境与工程2016,30,B04:0
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