Neodymium isotopic constraints on Cenozoic Asian dust provenance changes linked to the exhumation history of the northern Tibetan Plateau and the Central Asian Orogenic Belt

The arid interior of Asia is the largest source dust deposited in North Pacific Ocean, and some even transported to Greenland. Investigating provenance history Asian can provide strong constraints on evolution topography climate interior. Eolian Nd isotopic records preserved Ocean sediments since ∼40 Ma a spatially integrated first-order constraint changes dust. However, lack similarly long from areas, namely, northern Tibetan Plateau Central Orogenic Belt, has hindered full understanding linked Cenozoic tectonics, inland Asia. Here, we have constructed first fine-grained whole-rock ∼52 Ma. results indicate two major changes, gradual increase εNd(0) values between ∼42 ∼25 general decrease Ma, which were probably caused by incremental northward growth Plateau. Further mass balance estimates based comparisons characteristics that rapid contribution Belt at be closely exhumation tectonic uplift aridification Our analyses, together with onset eolian sediment central eastern Asia, suggest modern-like regime promoting emissions transport might been place late Oligocene.