疆域辽阔、山川纵横、沃野千里的伟大的祖国,由于约居北纬54°—18°之间的中纬度和近中纬度地区,所以经向构造带的发育就不像纬向构造带那样,轮廓明显,形象突出,而仅发育于华北和华南一带。(图1) 从目前已有资料来看,在我国境内发育较为显著的南北向构造带主要有以下几带, The vast motherland, with its vast territory, mountains and valleys, and thousands of miles of land, does not develop as a zonal tectonic belt due to its latitude between mid-latitudes and mid-latitudes about 54 ° -18 ° north latitude Obviously, the image is prominent, but only in North China and South China. (Figure 1) Judging from the current available data, the more pronounced north-south tectonic belts in our country mainly include the following zones,