首页 | 本学科首页   官方微博 | 高级检索  
     检索      

云南马厂箐钾质碱性花岗岩特征和锆石U-Pb年龄
引用本文:夏斌,刘立文,张玉泉,黄强太,夏连泽,王洪,董春艳.云南马厂箐钾质碱性花岗岩特征和锆石U-Pb年龄[J].大地构造与成矿学,2011,35(3):452-456.
作者姓名:夏斌  刘立文  张玉泉  黄强太  夏连泽  王洪  董春艳
作者单位:1. 中山大学海洋学院,广东广州510275;中国科学院广州地球化学研究所,广东广州510640
2. 中国科学院广州地球化学研究所,广东广州510640;中国科学院研究生院,北京100049
3. 中国科学院广州地球化学研究所,广东广州,510640
4. 中山大学海洋学院,广东广州,510275
5. 北京离子探针中心,北京,100037
基金项目:受国家重点发展研究计划(973),国家自然科学基金,矿床地球化学国家重点实验室开放基金
摘    要:马厂箐钾质碱性花岗岩岩石化学成分中具富碱高钾和富钙特征,微量元素富集Sr、Ba等大离子亲石元素,亏损Nb、Ta等高场强元素.在稀土元素组成上,富集轻稀土(LREE/HREE= 22.2 - 25.0),基本无铕异常(δEu=0.80~1.10).锫石SHRIMP U-Pb年龄为(34±0.5)Ma,相当于晚始新世,属喜...

关 键 词:地球化学和U-Pb年龄  钾质碱性花岗岩  马厂箐  云南

Geochemical Characteristics and Zircon SHRIMP U-Pb Age of the Machangqing Kaligranite in Yunnan Province
XIA Bin,LIU Liwen,ZHANG Yuquan,HUANG Qiangtai,XIA Lianze,WANG Hong,DONG Chunyan.Geochemical Characteristics and Zircon SHRIMP U-Pb Age of the Machangqing Kaligranite in Yunnan Province[J].Geotectonica et Metallogenia,2011,35(3):452-456.
Authors:XIA Bin  LIU Liwen  ZHANG Yuquan  HUANG Qiangtai  XIA Lianze  WANG Hong  DONG Chunyan
Institution:1.School of Marine Sciences,Sun Yat-Sen University,Guangzhou 510275,Guangdong,China;2.Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China;3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;4.Beijing SHRIMP Center,Beijing 100037,China)
Abstract:The petrochemistry of the Machangqing kaligranite is characterized by rich alkali,high potassium and calcium.The kaligranite is enriched in large lithophile elements such as Sr and Ba and depleted in high strength field elements like Nb and Ta.The rocks are relatively enriched in LREE(LREE/HREEE)=22.2~25.0,showing on obvious Eu anomalies(δEu=0.80~1.10).The granite was formed in Late Eocene with zircon SHRIMP U-Pb age of(34±0.5)Ma.
Keywords:geochemistry and U-Pb age  kaligranite  Machangqing  Yunnan Province
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号