Bibliographic Details
| Title: |
The Amirante Ridge and Trench Systemin the Indian Ocean: the southern termination of the NWIndian subduction. |
| Authors: |
Rodriguez, Mathieu1 rodriguez@geologie.ens.fr |
| Source: |
Comptes Rendus Géoscience. Mar2022, Vol. 352 Issue 3, p233-243. 11p. |
| Subjects: |
Trenches, Subduction, Ocean, Paleocene Epoch, Paleogeography, Paleoseismology |
| Abstract: |
The Amirante Ridge and Trench System forms a 600-km-long arcuate structure in the Mascarene Basin (Indian Ocean), whose origin remains enigmatic. Here, I provide a paleogeographic reconstruction of the NW India margin for the Late Cretaceous--Paleocene interval, compiling information fromophiolites surrounding the Arabian Sea and data collected at sea. This reconstruction shows that the Amirante Ridge and Trench Systemconstitutes the southern termination of a --1500-km-long subduction, which used to run along the NW Indian margin during the Late Cretaceous--Paleocene. The dislocation of the NWIndian subduction, recorded at the Amirante Ridge and Trench Systemand the Bela ophiolites,may have played a role in the plate reorganization event recorded at 73-63Ma. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
