必须声明标量变量 "@Script_ID"。 鲁西地块晚中生代中—基性岩地球化学和Sr-Nd-Pb同位素组成特征-《地球科学与环境学报》
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[1]宁培松,龙群,程婷,等.鲁西地块晚中生代中—基性岩地球化学和Sr-Nd-Pb同位素组成特征[J].地球科学与环境学报,2013,35(04):62-76.
 NING Pei-song,LONG Qun,CHENG Ting,et al.Geochemistry and Sr-Nd-Pb Isotopic Composition of Late Mesozoic Intermediate-basic Rock in Western Shandong Block[J].Journal of Earth Sciences and Environment,2013,35(04):62-76.
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鲁西地块晚中生代中—基性岩地球化学和Sr-Nd-Pb同位素组成特征(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第35卷
期数:
2013年第04期
页码:
62-76
栏目:
基础地质与矿产地质
出版日期:
2013-12-15

文章信息/Info

Title:
Geochemistry and Sr-Nd-Pb Isotopic Composition of Late Mesozoic Intermediate-basic Rock in Western Shandong Block
文章编号:
1672-6561(2013)04-0062-15
作者:
宁培松龙群程婷胡昭平陈福坤
1.中国科学技术大学地球和空间科学学院,安徽 合肥 230026; 2. 中国科学院壳幔物质与环境重点实验室,安徽 合肥 230026
Author(s):
NING Pei-song LONG Qun CHENG Ting HU Zhao-ping CHEN Fu-kun
1. School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, Anhui, China; 2. Key Laboratory of Crust-mantle Materials and Environments, Chinese Academy of Sciences, Hefei 230026, Anhui, China
关键词:
地球化学Sr-Nd-Pb同位素晚中生代中—基性岩锆石U-Pb年龄岩石成因鲁西地块
Keywords:
geochemistry Sr-Nd-Pb isotope Late Mesozoic intermediate-basic rock zircon U-Pb age petrogenesis western Shandong block
分类号:
P584;P588.12
DOI:
-
文献标志码:
A
摘要:
报道了鲁西地块西北部晚中生代中—基性岩锆石U-Pb年龄、全岩主微量元素含量和Sr-Nd-Pb同位素组成特征。样品分别采集自济南、邹平、泰安和章丘4个地区,这些中—基性岩富集大离子亲石元素,亏损高场强元素,轻、重稀土元素分异显著,Sr含量高,Y、Yb含量低,具有岛弧岩石的地球化学特征。锆石U-Pb定年结果显示,章丘和泰安中—基性岩形成年龄为124~128 Ma。4个地区中—基性岩表现出相似的、相对富集的Sr-Nd同位素组成,其二阶段Nd模式年龄集中在1.85 Ga。在Pb同位素组成上,邹平中—基性岩类似于洋脊玄武岩特征,而其他3个地区岩石有明显的类似于古老地壳物质特征,暗示岩浆源自受过华北陆块古老的地壳物质改造的富集地幔源区。这些岩石可能是在晚中生代太平洋板块向华北陆块俯冲作用过程中,古老的华北地壳物质重新循环进入地幔,产生富集型熔/流体交代上覆的华北岩石圈地幔,富集型地幔橄榄岩发生部分熔融形成鲁西地块晚中生代中—基性岩侵入体。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-04-07
基金项目:国家自然科学基金项目(40973042,41090372)
作者简介:宁培松(1988-),男,河北沧州人,理学硕士研究生,E-mail:songzi@mail.ustc.edu.cn。
更新日期/Last Update: 2014-01-20