%0 Journal Article
%A Gómez Barreiro, Juan
%A Martínez Catalán, José Ramón
%A Prior, D.
%A Wenk, H.-R.
%A Vogel, S.
%A Díaz García, Florentino
%A Arenas Martín, Ricardo
%A Sánchez Martínez, Sonia
%A Lonardelli, I.
%T Fabric Development in a Middle Devonian Intraoceanic SubductionRegime: The Careón Ophiolite (Northwest Spain)
%D 2010
%@ 0022-1376
%U https://hdl.handle.net/20.500.14352/42434
%X A Middle Devonian suprasubduction zone ophiolite, the Careo´n Unit (northwest Spain), displays amphibolite-faciesductile deformation fabrics related to the onset of the Rheic Ocean closure. Two different fabrics, an early high-Tfoliation and a subsequent lower-T foliation, each of which characterized by distinct deformation mechanisms, havebeen identified in two distinct crustal-scale shear zones of the same ophiolitic thrust sheet. Combined quantitativetexture analysis by electron backscattered diffraction and time-of-flight neutron diffraction, were carried out on theshear zones and correlated with micro- and macrostructural data. The results indicate that the regional lineation andshear zone kinematics (east-west, top-to-the-east) represent fabrics developed essentially during the intraoceanicsubduction of the Rheic Ocean, and their orientation may be considered a reference vector for convergence modelsin this part of the Variscan belt.
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