caa a22 4500 477064531 CHVBK 20180405111409.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02422240 doi (NATIONALLICENCE)springer-10.1007/BF02422240 Superposition of extensional detachments during the Neogene in the internal zones of the Betic cordilleras [Elektronische Daten] [F. González-Lodeiro, F. Aldaya, J. Galindo-Zaldívar, A. Jabaloy] In the internal zones of the Betic cordilleras, extensional structures have developed from the Upper Oligocene to the present day; they are contemporaneous with compressional structures (folds and thrusts) in the external zones. From the Upper Oligocene to the Aquitanian, extension occurred in the Maláguide/Alpujárride detachment, and related structures show varying kinematics in different sectors. Younger deformations with a top-to-the-N sense of movement have affected Nevado-Filábride (ductile shear zones), Alpujárride (ductile and brittle shear zones) and Maláguide rocks (normal faults). At least from the Late Burdigalian up to the Lower Tortonian, displacements have occurred in the Alpujárride/Nevado-Filábride detachment. Deformations have been generally non-coaxial, with a top-to-the-W sense of movement. Stretching lineation trends in the Nevado-Filábride rocks curve from E to W suggesting a progressive variation of the ductile-shear-zone kinematics related to the Alpujárride/Nevado-Filábride detachment between the Aquitanian and Lower Tortonian stages. Deformations from the Lower Tortonian to the present day are normal faults, formed in extensional settings in the upper part of the crust, and folds and strike-slip faults which indicate N-S to NNW-SSE shortening directions and E-W to ENE-WSW extension directions. Springer-Verlag GmbH & Co KG, 1996 Extension nationallicence Detachments nationallicence Betic cordilleras nationallicence Neogene evolution nationallicence Shear zones nationallicence González-Lodeiro F. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut Aldaya F. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut Galindo-Zaldívar J. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut Jabaloy A. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut Geologische Rundschau Springer-Verlag 85/2(1996-06-01), 350-362 0016-7835 85:2<350 1996 85 531 https://doi.org/10.1007/BF02422240 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02422240 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- González-Lodeiro F. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut NATIONALLICENCE 700 1- Aldaya F. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut NATIONALLICENCE 700 1- Galindo-Zaldívar J. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut NATIONALLICENCE 700 1- Jabaloy A. Departmento de Geodinámica, Universidad de Granada, E-18071, Granada, Spain aut NATIONALLICENCE 773 0- Geologische Rundschau Springer-Verlag 85/2(1996-06-01), 350-362 0016-7835 85:2<350 1996 85 531 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer