The Baikal depression is the earlist and the largest undewater depression of the Baikal rift system,where occurred notable neotectonic activities with an vertical movement from southwest to north east.

• 贝加尔裂谷拗陷是贝加尔裂谷系中发育最早、规模最大的水下拗陷，新构造运动表现明显，升降幅度自西南向东北增大。