对渤海湾盆地张扭、压扭性构造的一点认识

张扭和压扭性构造是兼有走滑和拉张挤压2种作用的构造样式。经对大量具有张扭和压扭特征断层的统计提出,这2种扭动断层在沉积盆地的发育中具有特殊的空间位置与剖面特征,认为应当进一步加深对张扭和压扭断层的研究和认识,张扭和压扭构造是厘定渤海湾盆地及其内部坳陷演化过程的必需条件。

AN UNDERSTANDING OF TENSE-SHEARING AND COMPRESSO-SHEARING STRUCTURES IN BOHAI BAY BASIN

The structural manner studying provides a crucial presumption of tectonic movement and developing processes. Tense-shearing and compresso-shearing structure accompanies two types of structural manners with striking and extending and contrcting action. A static coming from abundance of tense-shearing and compresso-shearing faults indicates that the two types of faults have specific spacial and profiling characters in sedimentary basins. What means that the former discerning of tense-shearing and compresso-shearing structures depending on positive flower and negative flower structures should be developed, and distinctly understanding tense-shearing and compresso-shearing structures is absolutely necessary condition to ascertain the tectonic evolution process of Bohai bay basin and its internal depressions.