水城岩溶盆地成因及其演化

贵州西部水城岩溶盆地是一个典型的断陷岩溶盆地,它的成因不仅是溶蚀、溶解起了重要作用,更重要的是构造作用,特别是新构造运动起了决定性作用。整个盆地内碳酸盐岩广布,占总面积82.1％。其岩溶发育现象,地表水和地下水的补给、迳流、排泄都有独特特点。在地表水和地下水的作用下,形成了较特殊的岩溶景观。特别是目前由于自然和人为影响因素的叠加和介入,促进了岩溶发育和发展的规模。

KARST FORMS AND THEIR EVOLUTION AT SHUICHENG BASIN

There is a typical karst faulted basin in Shuicheng Region in western part of Guizhou. It can be concluded that it is not only corrosion and solution but also tectonism, especially neotectonism that plays an important role in the origin of karst basin. Carbonate rocks extend all over the basin, and the outcrop area of carbonate rocks takes up 83.1 percent of the total area of the basin. Karst forms as well as recharge, runoff, and discharge of surface and underground water have their distinctive character. Most of the typical karst Iandscapes are mainly formed due to the surface and subsurface water processes. At present, karst forms develop rapidly on a larger scale by means of the saperposition and interference of the natural factor and human activity.