Upper mantle seismic anisotropy beneath the West Antarctic Rift System and surrounding region from shear wave splitting analysis

• Published in: Geophysical Journal International
• Main Authors: Accardo, Natalie J., Wiens, Douglas A., Hernandez, Stephen, Aster, Richard C., Nyblade, Andrew, Huerta, Audrey, Anandakrishnan, Sridhar, Wilson, Terry, Heeszel, David S., Dalziel, Ian W. D.
• Format: Text
• Language: English
• Published: Oxford University Press 2014
• Subjects: Seismology; Amundsen Sea; Anet; Antarctic; Byrd; East Antarctica; Marie Byrd Land; Transantarctic Mountains; Antarc*; Antarctica
• Online Access: http://gji.oxfordjournals.org/cgi/content/short/198/1/414; https://doi.org/10.1093/gji/ggu117

We constrain azimuthal anisotropy in the West Antarctic upper mantle using shear wave splitting parameters obtained from teleseismic SKS, SKKS and PKS phases recorded at 37 broad-band seismometres deployed by the POLENET/ANET project. We use an eigenvalue technique to linearize the rotated and shift...