@article{bb27daf7bedf47aca95abe77a698f229,
title = "Thickness of the mantle transition zone beneath the South Pacific as inferred from analyses of ScS reverberated and Ps converted waves",
abstract = "We study the thickness of the mantle transition zone beneath the South Pacific in order to determine temperature anomalies associated with presumed hot plumes in the South Pacific Superswell. The ScS reverberation method is used to determine the average thickness between an event-station pair and the Velocity Spectrum Stacking (VSS) method is used to determine the thickness near each station. The thickness obtained by the ScS reverberation method shows that the average thickness beneath the Superswell is less than the globally averaged thickness by 6 km, while the average thickness beneath the Tonga-Fiji subduction is greater than the global average by 10 km. The VSS method shows nearly normal thickness beneath stations used in the Superswell region. We conclude that substantial thinning of the transition zone associated with presumed hot plumes occurs locally beneath the Society hot spot as revealed by our previous SS-precursor study, and is not widespread beneath the whole area of the Superswell.",
keywords = "Mantle, Plumes, Receiver function, ScS-waves, Superswell, Transition zones",
author = "D. Suetsugu and T. Saita and H. Takenaka and F. Niu",
note = "Funding Information: We thank S. Sekiguchi and T. Negishi for operating the data center and making the SPANET data easily available to us and the IRIS DMC for providing the IRIS data in a user friendly manner. I would like to thank the Laboratoire de Geophysique for allowing me to analyze their valuable data and D. Reymond for helping me to collect the data. I thank Robert Geller, G. Helffrich, and G. Barruol for critically reading the manuscript and providing valuable comments. We used the GMT mapping tool ( Wessel and Smith, 1998 ) to make figures. The VSS work is a part of T. Saita{\textquoteright}s Ph.D. thesis at Kyushu University. This work was done under the Superplume Project, which was funded by the Science and Technology Agency (now the Ministry of Education, Culture, Sports, Science and Technology) of the Government of Japan.",
year = "2004",
month = aug,
day = "16",
doi = "10.1016/j.pepi.2003.06.008",
language = "English",
volume = "146",
pages = "35--46",
journal = "Physics of the Earth and Planetary Interiors",
issn = "0031-9201",
publisher = "Elsevier",
number = "1-2",
}