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- W1557082721 abstract "Southeast Asia is surrounded by subduction zones resulting from the interactions of several lithospheric plates. Its evolution has been also influenced by active tectonics due to the Indo-Asian collision in the Cenozoic. In this study, we use a large number of arrival-time data of local and regional earthquakes to determine 3-D P wave tomography and azimuthal anisotropy in the mantle beneath SE Asia. High-velocity (high-V) anomalies representing the subducting slabs are clearly visible in the upper mantle and the mantle transition zone (MTZ). Low-velocity (low-V) zones with trench-normal anisotropy are revealed in the uppermost mantle, which indicate back-arc spreading or secondary mantle-wedge flow induced by the slab subduction. In contrast, trench-parallel anisotropy dominates in the deep upper mantle and reflects structures either in the subducting slab or in the upper mantle surrounding the slab. The trench-parallel anisotropy is also significant in the lower MTZ, which may contribute to shear wave splitting observations. A low-V body extending down to the lower mantle is visible under the Hainan volcano far away from the plate boundaries, suggesting that Hainan is a hot spot fed by a lower-mantle plume. The low-V body under Hainan is connected with low-V zones in the upper mantle under SE Tibet and Vietnam. Our P wave anisotropy results reflect significant mantle flow existing in the asthenosphere from SE Tibet to Hainan and further southwestward to Vietnam. The present study, especially the 3-D P wave anisotropy results, provides important new insight into mantle dynamics in SE Asia." @default.
- W1557082721 created "2016-06-24" @default.
- W1557082721 creator A5013582768 @default.
- W1557082721 creator A5018731318 @default.
- W1557082721 creator A5058278763 @default.
- W1557082721 date "2015-07-01" @default.
- W1557082721 modified "2023-09-29" @default.
- W1557082721 title "<i>P</i> wave tomography and anisotropy beneath Southeast Asia: Insight into mantle dynamics" @default.
- W1557082721 cites W1493790006 @default.
- W1557082721 cites W1511946362 @default.
- W1557082721 cites W1570380978 @default.
- W1557082721 cites W1573118131 @default.
- W1557082721 cites W1599030089 @default.
- W1557082721 cites W1621537172 @default.
- W1557082721 cites W1676343945 @default.
- W1557082721 cites W1689232968 @default.
- W1557082721 cites W1710491879 @default.
- W1557082721 cites W1781510035 @default.
- W1557082721 cites W1870060191 @default.
- W1557082721 cites W1882589761 @default.
- W1557082721 cites W1891677448 @default.
- W1557082721 cites W1900588704 @default.
- W1557082721 cites W1912045635 @default.
- W1557082721 cites W1939985003 @default.
- W1557082721 cites W1948019614 @default.
- W1557082721 cites W1950296793 @default.
- W1557082721 cites W1974029863 @default.
- W1557082721 cites W1974653614 @default.
- W1557082721 cites W1974851655 @default.
- W1557082721 cites W1979581725 @default.
- W1557082721 cites W1982640697 @default.
- W1557082721 cites W1982927349 @default.
- W1557082721 cites W1984120083 @default.
- W1557082721 cites W1987901223 @default.
- W1557082721 cites W1988744760 @default.
- W1557082721 cites W1992246383 @default.
- W1557082721 cites W1994298160 @default.
- W1557082721 cites W1995360942 @default.
- W1557082721 cites W1997859575 @default.
- W1557082721 cites W2000387120 @default.
- W1557082721 cites W2005171409 @default.
- W1557082721 cites W2009376507 @default.
- W1557082721 cites W2009691326 @default.
- W1557082721 cites W2011221631 @default.
- W1557082721 cites W2021320095 @default.
- W1557082721 cites W2028310115 @default.
- W1557082721 cites W2029399179 @default.
- W1557082721 cites W2030258812 @default.
- W1557082721 cites W2031559074 @default.
- W1557082721 cites W2031665953 @default.
- W1557082721 cites W2035664841 @default.
- W1557082721 cites W2035790992 @default.
- W1557082721 cites W2038158990 @default.
- W1557082721 cites W2040489750 @default.
- W1557082721 cites W2041774199 @default.
- W1557082721 cites W2044753344 @default.
- W1557082721 cites W2045211397 @default.
- W1557082721 cites W2045288050 @default.
- W1557082721 cites W2045699793 @default.
- W1557082721 cites W2047375783 @default.
- W1557082721 cites W2048405854 @default.
- W1557082721 cites W2048993097 @default.
- W1557082721 cites W2049476348 @default.
- W1557082721 cites W2049639483 @default.
- W1557082721 cites W2052274781 @default.
- W1557082721 cites W2052584682 @default.
- W1557082721 cites W2053576887 @default.
- W1557082721 cites W2057549738 @default.
- W1557082721 cites W2061647070 @default.
- W1557082721 cites W2066439207 @default.
- W1557082721 cites W2074729208 @default.
- W1557082721 cites W2077208327 @default.
- W1557082721 cites W2080181200 @default.
- W1557082721 cites W2081810118 @default.
- W1557082721 cites W2084045184 @default.
- W1557082721 cites W2087040586 @default.
- W1557082721 cites W2089149172 @default.
- W1557082721 cites W2089920769 @default.
- W1557082721 cites W2090206181 @default.
- W1557082721 cites W2091228292 @default.
- W1557082721 cites W2093036886 @default.
- W1557082721 cites W2093263440 @default.
- W1557082721 cites W2093434497 @default.
- W1557082721 cites W2095168306 @default.
- W1557082721 cites W2097054847 @default.
- W1557082721 cites W2097897435 @default.
- W1557082721 cites W2100620648 @default.
- W1557082721 cites W2104133227 @default.
- W1557082721 cites W2107764679 @default.
- W1557082721 cites W2110525812 @default.
- W1557082721 cites W2118852081 @default.
- W1557082721 cites W2120233316 @default.
- W1557082721 cites W2126027490 @default.
- W1557082721 cites W2126577453 @default.
- W1557082721 cites W2129247900 @default.
- W1557082721 cites W2129333755 @default.
- W1557082721 cites W2131565084 @default.
- W1557082721 cites W2133145144 @default.