The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
jian ping di qu zao er die shi ba jia zi chao dan yuan qin ru yan ji qi qin ru ji zhi tao lun
Author(s): 
Pages: 284-292
Year: Issue:  4
Journal: Land & Resources

Keyword:  建平八家子超单元早二叠世膨胀式底劈上侵就位;
Abstract: 建平八家子超单元花岗岩同位素年龄274.8~260Ma(U/Ph,K/Ar),属早二叠世.根据同源岩浆演化理论可划分为4个单元,即杨树岭单元、紫杖子单元、套卜河洛单元和太平庄单元,主要岩石为中细粒—巨粒似斑状二长花岗岩.由于侵位过程中的同构造变形作用,局部形成糜棱岩化花岗岩和片麻状花岗岩.岩浆侵位为膨胀底劈上侵.
Related Articles
No related articles found