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内蒙古色尔腾地区白彦花斜长花岗岩锆石U-Pb年龄
U-Pb isotope zircon age of Baiyanhua plagiogranite in Seerteng area,Inner Mongolia
【摘要】 通过对内蒙古色尔腾地区白彦花斜长花岗岩锆石U_Pb法年龄的分析 ,确定该岩体的形成年龄为 2 40 0~2 5 0 0Ma ,结合区域地质特征厘定其形成于新太古代。
【Abstract】 Based on survey and research, the authors have found a suite of Neo-Archaean intrusive rocks composed of plagiogranite, quartz diorites, and diorites in Seerteng area, Inner Mongolia. Isotopic dating of plagiogranite indicates that the age of the rocks is at 2?400~2?500 Ma. According to isotopic age and regional geologic characteristics, the authors hold that the intrusive rocks might be products of Neo-Archaean.
【关键词】 锆石U-Pb法年龄;
斜长花岗岩;
色尔腾地区;
白彦花;
内蒙古;
【Key words】 U-Pb isotope zircon age; plagiogranite; Seerteng area; Baiyanhua; Inner Mongolia;
【Key words】 U-Pb isotope zircon age; plagiogranite; Seerteng area; Baiyanhua; Inner Mongolia;
【基金】 原地质矿产部地质调查局资助项目 (地科专 96_2 6 )
- 【文献出处】 岩石矿物学杂志 ,Acta Petrologica Et Mineralogica , 编辑部邮箱 ,2003年03期
- 【分类号】P597
- 【被引频次】13
- 【下载频次】175