盆地
盆地（英语：Basin），特征为盘地四周地形的水平高度要比盆地自身高，在中间形成一个低地，常为一地形（平原、高原）被山所围绕也是盆地，因此是盆地是地形分支的一种。
依形成原因可区分为以下几种：
- 侵蚀盆地
- 地质不同，产生差异侵蚀所造成。
- 褶曲盆地
- 褶曲作用所造成。
- 断层盆地
- 断层作用所造成。
- 沉积盆地
- 来自海洋及大陆板块挤压的交界。
Structural basin
中文百科
英语百科
Structural basin 盆地
A structural basin is a large-scale structural formation of rock strata formed by tectonic warping of previously flat-lying strata. Structural basins are geological depressions, and are the inverse of domes. Some elongated structural basins are also known as synclines. Structural basins may also be sedimentary basins, which are aggregations of sediment that filled up a depression or accumulated in an area; however, many structural basins were formed by tectonic events long after the sedimentary layers were deposited.