Geology of The geological structure of the bend (Folded Belt) and is cut by faults (Faulte) and the complications of granite by a space then stitching them crooked. Were transformed by heat and pressure. Some become a piece of granite rock. Northern mountain area West and South Composed of sedimentary and metamorphic rocks is the structure that is crooked (Folded Belt), mostly between. The Paleozoic (Palaozoie) Northeast Plateau is a region consisting of sandstone. And shale layer of Paleozoic (Palaozoie) on the western edge of the area. And southwest of the Khorat Plateau and eastern mountain ranges are stratigraphy, structural bending of the Paleozoic (Palaozoie) central area. Thailand is a land basin (Basin) is a large accumulation of sedimentary rock layers are younger eons Xenophon Faso Iqbal (Cenozoic), which consists of a layer of sediment. The Terry Shea Tree (Tertiary) and the upper layer of sediment deposition will be covered with gravel, rocks of the quaternary (Quaternary).