| 从 Pb同位素组成特征论东秦岭陡岭块体的构造归属 |
| |
| 引用本文： | 张宏飞,凌文黎.从 Pb同位素组成特征论东秦岭陡岭块体的构造归属[J].地球科学,1996,21(5):487-490. |
| |
| 作者姓名： | 张宏飞 凌文黎 |
| |
| 作者单位： | [1]地球科学学院 [2]测试中心 |
| |
| 基金项目： | 地质矿产部开放实验室基金,国家自然科学基金 |
| |
| 摘 要： | 针对目前关于东秦岭造山占陡岭块体在构造归属上尚存在的不同意见，对该块体中的陡岭九黑云母斜长片麻岩、斜长角闪岩和侵入于该群中的新元古代花岗岩类长石Ｐｂ同位素组成特征进行了分析，并与北秦岭块体中的秦岭群变质杂岩和侵入于秦岭群中的新元古代花岗岩类长石Ｐｂ同位素组成特征了综合对比。
|
| 关 键 词： | 陡岭群 构造归属 东秦岭 块体 造山带 铅同位素 |
TECTONIC DIVISION OF DOULING MASSIF OF EAST QINLING BY Pb ISOTOPIC COMPOSITIONAL CHARACTERISTICS |
| |
| Zhang Hongfei,Ouyang Jianping.TECTONIC DIVISION OF DOULING MASSIF OF EAST QINLING BY Pb ISOTOPIC COMPOSITIONAL CHARACTERISTICS[J].Earth Science-Journal of China University of Geosciences,1996,21(5):487-490. |
| |
| Authors: | Zhang Hongfei Ouyang Jianping |
| |
| Abstract: | The analys is ismade of Pb isotopic compositions of the Douling Group biotite-plagioclase gneiss,plagioclase amphibolites and granites from the Douling massif.The Pb isotopic comparison is made between the Douling massif and North Qinling massif in metamorphic rocks and associated granites.The results indicate that the Douling massif is characterized by low radiogenic Pb isotopic composition,whereas the North Qinling massif is characterized by high radiogenic Pb isotopic composition.The Pb isotopic compositional differences between the twom assifs are prominent,suggesting that the Douling massif may not been separated from the North Qinling massif.Instead,it would have been a massif within South Qinling. |
| |
| Keywords: | Douling Group Pb isotopes tectonic division East Qinling |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
| 点击此处可从《地球科学》下载免费的PDF全文 |
