摘要
在1:5万区域地质调查和科研成果的基础上,依据岩石组合,变形变质程度、形成年龄等,西秦岭北带吴家山岩群应为元古界地层,是西秦岭北带基底岩系,该认识对于研究西秦岭地区地壳的形成和演化具有重要意义。
On the basis that the results of 1：50000-scale regional geological and geological research, In accordance with rock compose, degree of metamorphism and deformation ,forming age etc, Wujiashan Rock Group of north area in West Qinling shall be Proterozoie strate, It is belong to base rock of north area in West Qinling. The opinion have a important significance in research the formation and evolution of crust in West Qinling area.
出处
《甘肃冶金》
2010年第6期80-82,109,共4页
Gansu Metallurgy
关键词
西秦岭
吴家山岩群
元古界地层
基底岩系
west Qinling
Wujiashan rock group
proterozpic strate
base rock
