Before and in Triassic period, the main part of Qaidam Massif rose stably, but rift zones developed and received marine rift-typed sediments only at southern and northern borderland.

• 三叠纪及其以前，柴达木地块主体呈现稳定的隆升状态，仅其南、北缘发育的裂谷带时张时合，沉积了一套海相裂谷型建造。