Origin and time evolution of subduction polarity reversal from plate kinematics of Southeast Asia
Abstract
We present a regional model of plate geometry and kinematics of Southeast Asia since the Late Cretaceous, embedded in a global plate model. The model involves subduction polarity reversals and sheds new light on the origin of the subduction polarity reversal currently observed in Taiwan. We show that this subduction zone reversal is inherited from subduction of the proto–South China Sea plate and owes its current location to triple junction migration and slab rollback. This analysis sheds new light on the plate tectonic context of the Taiwan orogeny and questions the hypothesis that northern Taiwan can be considered an older, more mature equivalent of southern Taiwan.
Additional Information
© 2016 Geological Society of America. Manuscript received 22 February 2016, Revised manuscript received 9 June 2016, Manuscript accepted 17 June 2016, First published on July 8, 2016. Von Hagke was funded by a California Institute of Technology Tectonics Observatory postdoctoral fellowship. Discussions with Sabin Zahirovic, Jonny Wu, Bruce Shyu, and John Suppe helped to clarify the picture. We thank Jonathan Lewis, Taras Gerya, and anonymous reviewers for constructive comments. GSA Data Repository item 2016213, the reconstruction approach, Figure DR1 (comparing different models) and Movie DR2 (new reconstructions), is available online at www.geosociety.org/pubs/ft2016.htm, or on request from editing@geosociety.org.Attached Files
Submitted - vHagke_et_al._2016_Geology-_SubductionZone_Reversal_Preprint.pdf
Supplemental Material - .listing
Supplemental Material - 2016213.pdf
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Additional details
- Eprint ID
- 69011
- Resolver ID
- CaltechAUTHORS:20160713-140842873
- Caltech Tectonics Observatory
- Created
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2016-07-28Created from EPrint's datestamp field
- Updated
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2023-06-01Created from EPrint's last_modified field
- Caltech groups
- Seismological Laboratory, Caltech Tectonics Observatory, Division of Geological and Planetary Sciences