The uppermost mantle seismic velocity structure of West Antarctica from Rayleigh wave tomography: Insights into tectonic structure and geothermal heat flow

• Published in: Earth and Planetary Science Letters
• Main Authors: O'Donnell, J. P., Stuart, G. W., Brisbourne, A. M., Selway, K., Yang, Y., Nield, G. A., Whitehouse, P. L., Nyblade, A. A., Wiens, D. A., Aster, R. C., Anandakrishnan, Sridhar, Huerta, Audrey D., Wilson, T., Winberry, J. Paul
• Format: Text
• Language: unknown
• Published: ScholarWorks@CWU 2019
• Subjects: Antarctica; seismology; tectonics; lithosphere; mantle; heat flow; Geomorphology; Geophysics and Seismology; Tectonics and Structure; Antarctic; Byrd; Island Bay; Marie Byrd Land; Pacific; Pine Island Bay; Pine Island Glacier; Ross Sea; Thwaites Glacier; Transantarctic Mountains; West Antarctica; Antarc*; Ice Sheet; Pine Island
• Online Access: https://digitalcommons.cwu.edu/geological_sciences/123; https://doi.org/10.1016/j.epsl.2019.06.024

We present a shear wave model of the West Antarctic upper mantle to ∼200 km depth with enhanced regional resolution from the 2016-2018 UK Antarctic Seismic Network. The model is constructed from the combination of fundamental mode Rayleigh wave phase velocities extracted from ambient noise (periods...