Abstract
AbstractUtilizing the seismological data collected by Sino‐US cooperated project Hi‐Climb, crossing the north part of the profile from Gyirong to Lugu, we picked the arrival times of P phases from earthquakes larger than Mb 5.0 and Pn phases from that lager than Mb 4.0 recorded during 2004~2005. Through multi‐phase tomography inversion the P wave velocity perturbations down to 500 km below the central part of Tibet Plateau were determined. It is found that there is a northward dipping low velocity perturbation zone in the Yarlun‐Tsangbo Suture area, and a southward subduction zone beneath Bangong‐Nujiang Suture which may be lifted by Indian Plate subduction, and the delamination of Indian Plate beneath Gangdes block may be cut through by the low velocity zone at Yarlun Suture. The tectonic style illustrates that Indian Plate should have subducted before it may reach Bangon‐Nujiang Suture, and that the frontier of Indian Plate presents multi‐phase multi‐level feature according to the delaminated position, and may also be affected by the thermo‐cycle of lower mantle.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.