摘要
从构造样式、沉积特征、断层组合等方面探讨了黄骅盆地海岸线两侧右旋走滑构造变形的存在,指出结晶基底的不均匀性是NNE向基底隐伏走滑带形成和新生代盖层走滑构造产生的控制因素。采用单剪模式解释了由于NNE向基底隐伏走滑带在新生代的右旋走滑活动,在主位移带(PDZ)的两侧产生了NE向的R剪切,R剪切受区域NW—SE向伸展和由走滑导致的SN向局部伸展的共同作用,导致了现今黄骅盆地中区海岸线两侧构造线不连续的现象。
The dextral strike-slip tectonic deformation on both sides of the coastline in Huanghua Basin is discussed from aspects of tectonic style, fault combination, and sedimentary feature. The unevenness of crystalline basement is found to be the governing factor for forming the NNE-striking blind basement strike-slip zone and the strike-slip tectonics in the Cenozoic platform cover. The single shear model is used to explain the geological phenomenon: because of the dextral strike-slip movement during Cenozoic, the NE-striking R shears were developed on both sides of the primary displacement zone (PDZ); and the co-action of NW-SE-striking extension and the SN-striking extension resulted in a discontinuous tectonic line on both sides of the coastline today.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2004年第3期287-291,共5页
Journal of China University of Mining & Technology
基金
国家重点基础研究发展规划项目(G19990433)
关键词
构造样式
沉积特征
断层组合
构造变形
结晶基底
Huanghua Basin
discreteness of tectonic line
blind basement strike-slip zone
R shear
simple shear
