Gómez Barreiro, JuanMartínez Catalán, José RamónPrior, D.Wenk, H.-R.Vogel, S.Díaz García, FlorentinoArenas Martín, RicardoSánchez Martínez, SoniaLonardelli, I.2023-06-202023-06-2020100022-1376https://hdl.handle.net/20.500.14352/42434A Middle Devonian suprasubduction zone ophiolite, the Careo´n Unit (northwest Spain), displays amphibolite-facies ductile deformation fabrics related to the onset of the Rheic Ocean closure. Two different fabrics, an early high-T foliation and a subsequent lower-T foliation, each of which characterized by distinct deformation mechanisms, have been identified in two distinct crustal-scale shear zones of the same ophiolitic thrust sheet. Combined quantitative texture analysis by electron backscattered diffraction and time-of-flight neutron diffraction, were carried out on the shear zones and correlated with micro- and macrostructural data. The results indicate that the regional lineation and shear zone kinematics (east-west, top-to-the-east) represent fabrics developed essentially during the intraoceanic subduction of the Rheic Ocean, and their orientation may be considered a reference vector for convergence models in this part of the Variscan belt.engjournal articlehttp://www.press.uchicago.edu/ucp/journals/journal/jg.htmlopen access552.3(460.11)Careón OphioliteMiddle DevonianIntraoceanic subductionPetrología