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6篇 您的检索式:作者名="GRIFFIN W.L."
    题名 作者 年代 出处 被引量
1华夏南部可能存在Grenville期造山作用:来自基底变质岩中锆石U-Pb定年及Lu-Hf同位素信息显示文摘对华夏地块南部粤中增城和赣南鹤仔3个基底变质岩的地球化学和碎屑锆石年代学研究表明,它们的原岩都是形成于晚新元古代的沉积岩.3个变质沉积岩都主要由新元古代早期(1.0~0.9Ga)的碎屑物质组成,并混有少量中元古代和新元古代中晚期(0.8~0.6Ga)的碎屑物,说明沉积物主要来源于一个遭受过Gondwana大陆聚合事件影响的Grenville期造山带.碎屑锆石的Hf同位素成分显示这些Grenville期锆石可能是造山旋回早期形成的弧与古老大陆碰撞产生的岩浆结晶的.结合华夏地块其他地区~1.0Ga年龄锆石的分布及形态学特征,本文认为华夏地块的南缘很可能曾经存在或者极其靠近一个Grenville期的造山带.而这期造山作用的时代与东印度以及东南极的Grenville造山带一致,且同样受到Gondwana大陆聚合事件的影响.因此,从Rodinia超大陆裂解到Gondwana超大陆聚合期间,华南地块很可能位于澳大利亚西部而与东印度和东南极相邻.王丽娟 于津海 O’Reilly S.Y. Griffin W.L. 孙涛 魏震洋 舒良树 蒋少涌 2008科学通报2008,53,14:52
2Grenvillian orogeny in the Southern Cathaysia Block:Constraints from U-Pb ages and Lu-Hf isotopes in zircon from metamorphic basement显示文摘Metamorphic basement rocks in the Cathaysia Block are composed mainly of meta-sediments with different ages. New zircon U-Pb geochronological results from the meta-sedimentary rocks exposed in the Zengcheng and Hezi areas, southern Cathaysia Block, show that they consist dominantly of early Neoproterozoic (1.0―0.9 Ga) materials with minor Paleo- to Mesoproterozoic and late Neoproterozoic (0.8―0.6 Ga) components, suggesting that the detritus mostly come from a Grenvillian orogen. The youngest detrital zircon ages place a constraint on the deposition time of these sediments in Late Neoproterozoic. Zircon Hf isotopic compositions indicate that the Grenvillian zircons were derived from the reworking of Mesoproterozoic arc magmatic rocks and Paleoproterozoic continental crust, implying an arc-continent collisional setting. Single-peak age spectra and the presence of abundant euhedral Grenvillian zircons suggest that the sedimentary provenance is not far away from the sample location. Thus, the Grenvillian orogen probably preexisted along the southern margin of the Cathaysia Block, or very close to the south. Similarity in the ages of Grenvillian orogeny and the influence of the assembly of Gondwana in South China with India and East Antarctic are discussed, with suggestion that South China was more likely linked with the India-East Antarctica continents in Early Neoproterozoic rather than between western Laurentia and eastern Australia.WANG LiJuan YU JinHai S.Y. O'REILLY W.L. GRIFFIN SUN Tao WEI ZhenYang JIANG ShaoYong SHU LiangShu 2008Chinese Science Bulletin2008,53,19:21
3长江中下游溧水盆地中基性次火山岩-侵入岩的锆石U-Pb定年和Lu-Hf同位素显示文摘对溧水盆地8件典型的中生代次火山岩-侵入岩进行了详细的锆石U-Pb年代学和Lu-Hf同位素研究.结果显示,老虎头角闪闪长玢岩年龄为130.5±1.6 Ma,大铜山角闪闪长玢岩年龄为136.0±3.4 Ma,大魏庄角闪闪长玢岩年龄为132.7±2.7 Ma,野山凹粗安斑岩年龄为127.0±1.9 Ma,砚瓦桥石英闪长玢岩年龄为129.4±1.7 Ma,西北山辉石闪长玢岩年龄为133.2±2.1 Ma,长山头黑云母安山玢岩年龄为131.1±2.3 Ma,尖山黑云母粗安斑岩年龄为127.4±1.8 Ma.所有岩浆岩均为早白垩世产物,指示了溧水盆地岩浆活动的峰期时代.岩浆岩的锆石?Hf(t)值变化于-3.54^-9.11,其中大多数变化于-3.54^-5.93,与长江中下游其他火山岩盆地中同时代火山岩和侵入岩的锆石Hf同位素组成相似,表明它们具有相似的源区组成.在分析长江中下游地区以及邻区同时代岩浆特征的基础上,提出俯冲太平洋板块后撤模式来解释中国东部晚中生代岩浆活动.侏罗纪中晚期-白垩纪早期(170~135 Ma),太平洋板块向欧亚大陆俯冲,总体处于挤压背景,岩浆活动呈现出由沿海向内陆年轻化的趋势,且多具壳源特征;白垩纪早期(~135 Ma)之后,太平洋板块的俯冲作用减弱,俯冲板片发生后撤,研究区总体转变为拉张背景,从而形成了一系列火山盆地,造成大量富集地幔和较少量古老地壳物质的熔融,形成大量中基性岩浆岩.王丽娟 黄建平 于津海 GRIFFIN W.L. 王汝成 张少琴 杨颍鹤 2014科学通报2014,59,14:17
4Archean crustal evolution in the northern Yilgarn Craton: U–Pb and Hf-isotope evidence from detrital zircons显示文摘W.L. Griffin E.A. Belousova S.R. Shee N.J. Pearson S.Y. O’Reilly 20042004 (3-4)2004,,3:2
5Early crustal evolution in the western Yangtze Block: Evidence from U–Pb and Lu–Hf isotopes on detrital zircons from sedimentary rocks显示文摘Li-Juan Wang Jin-Hai Yu W.L. Griffin S.Y. O’Reilly 2011Precambrian Research2011,,:1
6Archean crustal evolution in the northern Yilgarn Craton: U–Pb and Hf-isotope evidence from detrital zircons显示文摘W.L. Griffin E.A. Belousova S.R. Shee N.J. Pearson S.Y. O’Reilly 2004Precambrian Research (-)2004,,3:1
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