Proto-South China Sea plate tectonics using subducted slab constraints from tomography

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dc.contributor.authorWu, Jonny
dc.contributor.authorSuppe, John
dc.date.accessioned2018-01-25T18:42:44Z
dc.date.available2018-01-25T18:42:44Z
dc.date.issued2017
dc.description.abstractThe past size and location of the hypothesized proto-South China Sea vanished ocean basin has important plate-tectonic implications for southeast Asia since the Mesozoic. Here we present new details on proto-South China Sea paleogeography using mapped and unfolded slabs from tomography. Mapped slabs included: the Eurasia-South China Sea slab subducting at the Manila trench; the northern Philippine Sea plate slab subducting at the Ryukyu trench; and, a swath of detached, sub-horizontal, slab-like tomographic anomalies directly under the South China Sea at 450 to 700 km depths that we show is subducted ‘northern proto-South China Sea’ lithosphere. Slab unfolding revealed that the South China Sea lay directly above the ‘northern Proto-South China Sea’ with both extending 400 to 500 km to the east of the present Manila trench prior to subduction. Our slab-based plate reconstruction indicated the proto-South China Sea was consumed by double-sided subduction, as follows: [1] The ‘northern proto-South China Sea’ subducted in the Oligo-Miocene under the Dangerous Grounds and southward expanding South China Sea by in-place 'self subduction' similar to the western Mediterranean basins; [2] Limited southward subduction of the proto-South China Sea under Borneo occurred pre-Oligocene, represented by the 800-900 km deep 'southern Proto-South China Sea' slab.en_US
dc.description.departmentEarth and Atmospheric Sciences, Department of
dc.identifierhttps://doi.org/10.1007/s12583-017-0813-xen_US
dc.identifier.citationCopyright 2017 Journal of Earth Science. Recommended Citation: Wu, Jonny, and John Suppe. "Proto-South China Sea plate tectonics using subducted slab constraints from tomography." Journal of Earth Science (2017): 1-15. DOI: 10.1007/s12583-017-0813-x URL: https://link.springer.com/article/10.1007%2Fs12583-017-0813-x. Reproduced in accordance with licensing terms and with the author’s permission.en_US
dc.identifier.orcid0000-0001-5530-005Xen_US
dc.identifier.urihttp://hdl.handle.net/10657/2072
dc.language.isoen_USen_US
dc.subjectplate tectonicsen_US
dc.subjectSouth China Seaen_US
dc.subjectseismic tomographyen_US
dc.subjectBorneoen_US
dc.subjectOligocene-Mioceneen_US
dc.subjectPlate tectonics
dc.subjectSouth China Sea
dc.subjectSeismic tomography
dc.subjectBorneo
dc.subjectOligocene-Miocene
dc.titleProto-South China Sea plate tectonics using subducted slab constraints from tomographyen_US
dc.typeArticleen_US

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