Depositional setting and basin-mountain framework of Cretaceous proto-basin of Iner Mongolia-Gansu-Qinghai area is reconstructed based on field geological survey and previous works of others.

• 摘要通过野外地质调查并结合前人资料，对蒙甘青地区白垩纪原型盆地沉积特征及盆山格局进行了研究。