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"Subduction at the Tethyan Trench probably caused the continents Africa and India to move towards Eurasia, which resulted in the opening of the Indian Ocean"
- Inexpertly, the extensional slab-pull force, drawing Afro-India northwards towards Eurasia, would have stretched & thinned the Afro-Indian continental crust (if only along the northern shores of Gondwana). Indeed, crustal thinning, unto rifting, had previously pulled the Cimmerian Plate off from the northern coastline of Gondwana, beginning about 300 Ma. Perhaps those episodes of crustal thinning caused those coastal terrains to subside beneath then-neo-Tethys-sea-level? 66.235.38.214 (talk) 09:58, 18 October 2012 (UTC)
Subduction is not a causative phenomenon edit
Subduction is not the prime mover for plate tectonic activity, its only an endplate motor effect due to distal seafloor spreading. The Indian ocean opened up due to seafloor spreading between the Indo Australian plate and Antarctic plate and the African plates , it also resulted in localized crustal weakness along the northern margins of the Tethys seafloor which caused it to buckle and subduct under the Cimmerian terranes of Eurasia — Preceding unsigned comment added by 75.138.12.105 (talk) 12:54, 20 December 2018 (UTC)
Tethysian - a legitimate alternative to Tethyan or not? edit
Tethysian appears to be an alternative spelling used by some geologists, who are not native speakers of English. Tethysian is used by them in English peer-reviewed articles in scientific journals and in scientific books. Should it therefore be regarded as a legitimate spelling, although a very rare one? GeoWriter (talk) 13:51, 12 February 2019 (UTC)
Tethys Trench edit
A new article Tethys Trench has been created with almost identical content to this one. It would be simple to redirect this article to that one, assuming that there is consensus to change the title. Both names seem to be used fairly commonly, but "Tethyan" is most common, notwithstanding the arguments put forward in the newly added citation. Obviously the new article shouldn't have been created and there should have been a discussion here on renaming this article, but we are where we are. Mikenorton (talk) 17:12, 25 November 2022 (UTC)