In Tibetan plateau the crust thickness is more than 70 km,in orogenic belt of Himalayan mountains it is about 55 km of,in Brahmaputra basin valley it is 33 to 35 km,and in Naga mountain it is 40 to 45 km.

• 喜马拉雅造山带为55 km左右; 布拉马普特拉河谷盆地为33~35 km;