北天山巴音沟蛇绿岩斜长花岗岩锆石SHRIMP测年及其意义
基金项目:

本文为中国地质调查局综合研究项目(编号200313000063)和国家自然科学基金资助项目(编号40472044)的成果


SHRIM P Dating of PI agiogranite from Bayingou Ophiol ite in the Northern Tianshan M ountains
Author:
单位:
  • 1)中国地质调查局西安地质矿产研究所,710054; 2)西北大学地质学系,西安,710069; 3)中国地质科学院北京离子探针中心,100037    
  •    
  •    
  •    
  •    
  •    
  •    
  • 1)Xi an Institute of Geology and Mineral Resources,Xi’an,710054; 2)Department of Geology,Northwest U iversit ,Xi an 710069; 3)Beijing SH RIM P Lab.,Chinese Academy of Geological Sciences。Beijing.100037    
  •    
  •    
  •    
  •    
  •    
  •    
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    北天山巴音沟蛇绿岩中斜长花岗岩仅产于辉长岩顶部,二者呈突变或渐变接触关系。本文应用SHRIMP方法对斜长花岗岩进行了锆石U—Pb定年,获得了324.8±7.1 Ma(2d)的年龄,这一年龄精确反映了巴音沟蛇绿岩形成于早石炭世。巴音沟蛇绿岩代表了天山晚古生代“红海型”洋盆的地质记录。

    Abstract:

    The sensitive high—resolution ion microprobe (SHRIM P)U—Pb zircon dating of plagiogranite from the Bayingou ophiolite in the northern Tianshan M ountains indicates that the magmatic age of the plagiogranite is 324.8± 7.1Ma (2o),which shows the Bayingou ophiolite was formed in the early Carboniferous. This suggests the existence of the late Paleozoic“Red Sea type"ocean basin in the northern Tianshan M ountains and the Baiyingou ophiolite is the rem nant of the oceanic crus.

    参考文献
    相似文献
    引证文献
引用本文

徐学义,马中平,夏林圻,王彦斌,李向民,夏祖春,王立社.2005.北天山巴音沟蛇绿岩斜长花岗岩锆石SHRIMP测年及其意义[J].地质论评,51(5):523-527,[DOI].
xu Xueyi, M A Zhongping, XIA Linqi, W ANG Yanbin, LI Xiangmin, XIA Zuchun, W ANG Lishe.2005. SHRIM P Dating of PI agiogranite from Bayingou Ophiol ite in the Northern Tianshan M ountains[J]. Geological Review,51(5):523-527.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史