节点文献
东北断块区的现代地壳垂直形变及其构造活动的意义
MODERN CRUSTAL VERTICAL DEFORMATION IN NORTHEAST CHINA BLOCK REGION AND MEANING OF TECTONIC ACTIVITY
【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。
【Abstract】 Crustal vertical deformation in Northeast China block region mainly shows downfall, isorateline 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.
- 【文献出处】 东北地震研究 ,Seismological Research of Northeast China , 编辑部邮箱 ,1990年03期
- 【被引频次】20
- 【下载频次】85