摘要： The interaction between two flipping subduction systems shapes the complicated lithospheric structures and dynamics around the Taiwan region. Whether and in what form the Eurasian Plate subducts/deforms under Taiwan Island is critical to the debate of tectonic models. Although an east dipping high‐velocity anomaly down to a depth below 200 km has been reported previously, its detailed morphology remains uncertain and leads to different interpretations. With a two‐step strategy of nonlinear joint inversion, the slab images of the Eurasian Plate were retrieved in a geometry that is hyperthin in the south, becoming massive and steeper in the central, and severely deformed in the north. The possible depth and dimension of a slab break were also investigated through synthetic tests of whether the slab had torn. Moreover, the slab deflection found at ~23.2°N latitude seems to correspond to where the nonvolcanic tremors and recent NW‐SE striking structures have occurred in southern Taiwan. Key Points High‐resolution lithospheric images are retrieved by a two‐step joint inversionThree‐dimensional geometry of the east subducting slab under Taiwan is establishedA possible slab deflection is observed at around latitude 23.2°N 其他題名： Geophys. Res. Lett 出版者： Washington: Blackwell Publishing Ltd 出版日期： 2014-09-28 出處： Geophysical research letters, 2014-09, Vol.41 (18), p.6350-6357 資源來源： Wiley Online Library - AutoHoldings Journals 版權： 2014. American Geophysical Union. All Rights Reserved. 識別號： ISSN: 0094-8276 識別號： EISSN: 1944-8007 識別號： DOI: 10.1002/2014GL061115
