In the Qinghai-Xizang Plateau the crust thickness is more than 70 km,in the orogenic belt of Himalayan Mountains it is about 55 km,in the Brahmaputra basin valley it is 33 to 35 km,and in the Naga mountain it is 40 to 45 km.

• 布拉马普特拉河谷盆地为33~35 km; 那加山山脉地区为40~45 km；即呈现出3个不同构造单元的展布.