摘要
东北断块区的地壳垂直形变主要表现为下降,形变等速率线延伸方向北西占优势,北西向的泰来～双城地形变“背斜”几乎占据全区,显示出现代构造活动以北西向为主导;北西和近东西向活动断裂沿倾向滑动明显,北北东向活动断裂走滑较为突出。东北地区的垂直形变可能主要反映了中部和上部地壳的变化。东北断决区现代活动可能以蠕滑形式为主。
Crustal vertical deformation in Northeast China block region mainly shows downfall, isorate
line of deformation dominating in the direction of the northwest, and Tailai-Shuangcheng def-
ormation 'anticline' occupying nearly all region. Modern tectonic activity is main in the direc-
tion of the northwest. vertical deformation in Northeast China region can mainly reflect the ch-
ange in upper and middle crust. Perhaps, modern activity in Northeast China block region displ-
aies creepage as main form.
出处
《防灾减灾学报》
1990年第3期15-20,共6页
Journal of Disaster Prevention And Reduction
