Skip to Main content Skip to Navigation
Journal articles

Burma Terrane part of the Trans-Tethyan arc during collision with India according to palaeomagnetic data

Abstract : Convergence between the Indian and Asian plates has reshaped large parts of Asia, changing regional climate and biodiversity, yet geodynamic models fundamentally diverge on how convergence was accommodated since the India–Asia collision. Here we report palaeomagnetic data from the Burma Terrane, which is at the eastern edge of the collision zone and is famous for its Cretaceous amber biota, to better determine the evolution of the India–Asia collision. The Burma Terrane was part of a Trans-Tethyan island arc and stood at a near-equatorial southern latitude at ~95 Ma, suggesting island endemism for the Burmese amber biota. The Burma Terrane underwent significant clockwise rotation between ~80 and 50 Ma, causing its subduction margin to become hyper-oblique. Subsequently, it was translated northward on the Indian Plate by an exceptional distance of at least 2,000 km along a dextral strike-slip fault system in the east. Our reconstructions are only compatible with geodynamic models involving an initial collision of India with a near-equatorial Trans-Tethyan subduction system at ~60 Ma, followed by a later collision with the Asian margin.
Document type :
Journal articles
Complete list of metadata

Cited literature [69 references]  Display  Hide  Download
Contributor : Isabelle Dubigeon Connect in order to contact the contributor
Submitted on : Monday, November 16, 2020 - 10:48:04 PM
Last modification on : Thursday, June 2, 2022 - 2:48:17 PM
Long-term archiving on: : Wednesday, February 17, 2021 - 8:20:30 PM


Files produced by the author(s)



Jan Westerweel, Pierrick Roperch, Alexis Licht, Guillaume Dupont-Nivet, Zaw Win, et al.. Burma Terrane part of the Trans-Tethyan arc during collision with India according to palaeomagnetic data. Nature Geoscience, Nature Publishing Group, 2019, 12 (10), pp.863-868. ⟨10.1038/s41561-019-0443-2⟩. ⟨insu-02283010⟩



Record views


Files downloads