Abstract
AbstractA large amount of high-quality teleseismic data is used for common conversion point (CCP) stacking of receiver functions in the Longmenshan area and near-by region. The results show that a large-scale high-velocity anomaly (LHVA) or lithospheric delamination can modify the structure of upper mantle discontinuities or weaken the phase boundary of olivine, which is a very important finding and can be used to assess stagnant slabs in the mantle transition zone globally. The deepening region of the 660 km discontinuity beneath the Songpan-Ganzi terrane identified in this study might be generated by the LHVA.
Funder
National Key R&D Plan of China
Publisher
Springer Science and Business Media LLC
Reference37 articles.
1. Roger, F., Jolivet, M. & Malavielle, J. Tectonic evolution of the Triassic fold belts of Tibet. CR Geosci. 340, 180–189 (2008).
2. Tong, Y. et al. Crustal clockwise rotation of the southeastern edge of the Tibetan Plateau since the late Oligocene. J. Geophys. Res. 126, e2020JB020153 (2021).
3. Zhang, C., Guo, Z. & Chen, Y. J. Lithospheric thickening controls the ongoing growth of northeastern Tibetan Plateau: Evidence from P and S receiver functions. Geophys. Res. Lett. 47, e2020GL088972 (2020).
4. Molnar, P. & Tapponnier, P. Cenozoic tectonics of Asia: Effects of a continental collision. Science 189, 419–426 (1975).
5. Chatterjee, S., Goswaki, A. & Scotese, C. R. The longest voyage: Tectonic, magmatic, and paleoclimatic evolution of the Indian plate during its northward flight from Gondwana to Asia. Gondwana Res. 23, 238–267 (2013).
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