河南板内变形特征概略

河南板内区盖层变形特征,可用“三向、三线、三区”加以概括。具体是指以三条基底深断裂（北纬３５°断裂、襄郏断裂、栾川—固始断裂）为界,河南权内区地壳划分为三个近东西向延长的块体,每个块体上主要构造线方向、变形体制、煤田构造样式及岩浆活动强度都有明显差别,形成了三个构造分区和三种控煤构造样式。盖层变形分异的原因是基底断裂结构不均一、应力在传递过程中衰减、形变介质物性差异等因素造成的。

THE OUTLINE OF CHARACTERISTICS OF INTRAPLATE DEFORMATION IN HENAN

The cover's deformation characteristics of intraplate area in Henan, can be generalized by "three-directions, three-lines and three-areas". In detail, Henan intraplate area can be divided into three blocks bounded by three basement-deep fault (the north latitude 35 degree fault, the Xiangjia fault, the Luanchuan-Gushi fault)and which extend along near westeast direction. In the each of the three blocks, its direction of main structral line, deformation system, coalfield structral type, and strength of magmatic activity are all different obviously, form three structral subzone and three kinds of coal-controlling structral type. The reason that led to differentiation of cover deformation is inhomogeneous of the basement fault structures, stress attenuation in the transimitter and the different physical property of the deformation media.