The geological signature of a slab tear below the Aegean
- Author(s)
- Laurent Jolivet, Armel Menant, Pietro Sternai, Aurélien Rabillard, Laurent Arbaret, Romain Augier, Valentin Laurent, Alexandre Beaudoin, Bernhard Grasemann, Benjamin Huet, Loic Labrousse, Laetitia Le Pourhiet
- Abstract
In this paper we explore the geology of the Aegean region in the Miocene to identify the geological signature of a first-order slab tear observed in all tomographic models. From 15 to 8. Ma, the tear is associated, spatially and timely, with a fast clockwise rotation of the External Hellenides, alkaline volcanism, high-temperature metamorphic domes with a predominance of north-dipping detachments, and south-westward migration of granitoid intrusions. These features suggest a warmer geodynamic environment during the rotation and the impact of a hot mantle flow associated with the tear. The ~. 8. Ma duration between the first high-temperature metamorphic domes in the centre of the archipelago and the beginning of the fast rotation may correspond to the time needed for the slab to bend, stretch and finally tear.
- Organisation(s)
- Department of Geology
- External organisation(s)
- Université d’Orléans, Institut des Sciences de la Terre d'Orléans (ISTO), Université Paris VI - Pierre-et-Marie-Curie
- Journal
- Tectonophysics
- Volume
- 659
- Pages
- 166-182
- No. of pages
- 17
- ISSN
- 0040-1951
- DOI
- https://doi.org/10.1016/j.tecto.2015.08.004
- Publication date
- 09-2015
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105106 Geodynamics
- Keywords
- ASJC Scopus subject areas
- Earth-Surface Processes, Geophysics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/the-geological-signature-of-a-slab-tear-below-the-aegean(58cac2a4-f108-4b03-a7da-38450abe1140).html