对亚东—格尔木和格尔木—额济纳旗地学大断面的研究揭示出青藏高原岩石圈的基本结构、组成、演化和地球动力学过程,发现了印度板块在南缘向喜马拉雅山下俯冲、阿拉善地块在北缘向高原下楔入的证据,它们构成了使高原隆升的主要驱动力。多学科研究表明,青藏高原是一个由8个地体拼合的大陆。高原内部地壳20～30km深度附近普遍发育低速高导层,它是构造应力去偶层,其上地壳脆性变形,逆冲叠覆,缩短增厚;其下地壳结构横向变化大,韧性变形。藏南下地壳(50～70 km)速度发生逆转;而藏北下地壳速度增高并呈梯度变化,具有双莫霍面特征。高原莫霍面起伏变化大,南北边缘 The study of large sections of the Yadong-Golmud-Golmud-Ejin Banner geoscience reveals the basic structure, composition, evolution and geodynamics of the lithosphere on the Tibetan Plateau. It is found that the Indian plate subducted below the Himalayas in the southern margin, Evidence of wedges in the northern margin to plateaus constitutes the main driving force for the uplift of the plateau. Multidisciplinary research shows that the Qinghai-Tibet Plateau is a continent composed of eight terrains. The low-velocity and high-conductivity layer is generally developed near the depth of 20-30 km in the interior crust of the plateau. It is a tectonic stress decoupling layer. Its upper crust is brittle, thrust and superposed, shortening and thickening. Its lower crustal structure changes greatly in lateral and ductile deformation. In the south of Tibet, the velocity of the lower crust (50 ~ 70 km) is reversed; while the velocity of the lower crust in northern Tibet increases with gradient and has the characteristics of double Moho. Plateau Moho change ups and downs, north and south edges