RT Journal Article
T1 Fabric Development in a Middle Devonian Intraoceanic SubductionRegime: The Careón Ophiolite (Northwest Spain)
A1 Gómez Barreiro, Juan
A1 Martínez Catalán, José Ramón
A1 Prior, D.
A1 Wenk, H.-R.
A1 Vogel, S.
A1 Díaz García, Florentino
A1 Arenas Martín, Ricardo
A1 Sánchez Martínez, Sonia
A1 Lonardelli, I.
AB 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.
PB University of Chigaco Press
SN 0022-1376
YR 2010
FD 2010
LK https://hdl.handle.net/20.500.14352/42434
UL https://hdl.handle.net/20.500.14352/42434
LA eng
DS Docta Complutense
RD 10 may 2025