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- [1] Ba-REE fluorcarbonate minerals froma carbonatite dyke at Bayan Obo,Inner Mongolia, North China[J] . X.-M. Yang,X.-Y. Yang,P.-S. Zhang,M. J. Le Bas.Mineralogy and Petrology . 2000 (3-4)
Zircon U-Pb dating of basement gneisses in the super-large Bayan Obo REE-Fe-Nb deposit, Inner Mongolia
被引：10
作者：
WANG Kaiyi
Tianjin Institute of Geology and Mineral Resources
机构：
关键词：
basement complex;
zircon U-Pb age;
Bayan Obo;
D O I：
暂无
中图分类号：
P588.3 [变质岩];
P597 [同位素地质学与地质年代学];
学科分类号：
070901 ;
070902 ;
摘要：
Zircon U-Pb ages have been determined for basement gneisses in the Bayan Obo REE-Fe-Nb deposit. On the U-Pb concordia diagram data of three samples yield up-per intercept ages of 1948-1917 Ma. Thus, these basement gneisses are of Paleoproterozoic. Rock association of these basement gneisses includes tonalite, syenite and paragneiss, not belonging to a sedimentary package. It is more appro-priate to consider this association as a basement complex rather than a stratigraphic "Group".
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页码：243 / 247
页数：5
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