前陆

• Compared to the basins in east guangxi , the basin of north guangxi is characterized by lower depositional and tectonic subsidence rate during rifting , longer thermal subsidence , later inflexion point from rifting to foreland buckling , as well as later inflexion point separating stable stage from active stage during foreland - buckling
  但与桂东大瑶山地区相比，桂北兴安地区在裂陷阶段的沉积速率和构造沉降速率明显偏低；热沉降阶段的持续时间偏长；裂陷阶段与前陆挠曲阶段的分界拐点偏晚；前陆挠曲阶段，由构造宁静期的缓慢沉降向构造活动期的快速沉降转化的分界拐点也偏晚。