[1] The collision caused a peripheral foreland basin to form in the north part of the Lhasa terrane, which persisted into the Early Cretaceous.
In some parts of the foreland basin, the north-dipping subduction of the Neotethyan oceanic crust below the Lhasa terrane caused volcanism.
[3] The second stage of activity may be due to the approach of India, preceded by the rollback of the subducted slab and peaking at the time of the collision.
[5] The Nyingchi complex forms the eastern segment of the Gangdese magmatic arc, and is mainly composed of plutons and their metamorphosed equivalents.
I-type granitoids in this complex date to c. 65–56 Ma, and appear to have been emplaced in the Lhasa terrane at the middle to lower crustal depths.