Zhidan Zhao

TL;DR: Using zircon in situ U-Pb and Lu-Hf isotope and bulk-rock geochemical data of Mesozoic-Early Tertiary magmatic rocks sampled along four north-south traverses across the Lhasa Terrane, Wang et al. as mentioned in this paper showed that the Lhao Terrane has ancient basement rocks of Proterozoic and Archean ages (up to 2870 Ma) in its centre with younger and juvenile crust (Phanerozoic) accreted towards its both northern and southern edges.

TL;DR: This paper reviewed and reevaluated these hypotheses in light of new data from Tibet including the distribution of major tectonic boundaries and suture zones, basement rocks and their sedimentary covers, magmatic suites, and detrital zircon constraints from Paleozoic metasedimentary rocks.

TL;DR: Using zircon in situ U-Pb and Lu-Hf isotopic and bulk-rock geochemical data of Mesozoic-Early Tertiary magmatic rocks sampled along four north-south traverses across the Lhasa Terrane, Wang et al. as discussed by the authors showed that the Lhaasa terrane has ancient basement rocks of Proterozoic and Archean ages (up to 2870 Ma) in its centre with younger and juvenile crust (Phanerozoic) accreted towards its both northern and southern edges.

TL;DR: The Linzizong volcanic rocks from the Linzhou Basin (near Lhasa) suggests that syncollisional felsic magmatism may in fact account for much of the net contribution to continental crust growth as discussed by the authors.

TL;DR: In this article, the authors show that the mantle material input contributed about 30% of the total thickness of the present-day Tibetan crust, assuming a pre-collision crustal thickness of ∼35 km, then the tectonic contribution would be about 20 km.