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Flexural folds linked to thrusting in the northern border of the Sierra de la Demanda (La Rioja)

dc.contributor.authorCortés Gracia, A. L.
dc.contributor.authorCasas Sainz, Antonio
dc.description.abstractThe Cerro Penalbà fold system is located at the northern border of the Sierra de la Demanda, within a thrust sheet, up tp 500 m thick, formed by overturned marine Jurassic beds, This thrust sheet is located between paleozoic rocks to the south, and (he tertiary molasse of the Ebro basin, to the north. This fold system is composed by at least three N W vergent asymmetric folds, with axes striking NOSOEand plunging 30 °-50 ° to the SW. The geometry and orientation of these folds is interpreted in terms of simple shear associated to the NNW movement of the hangingwall of the Sierra de la Demanda thrust. Kinematic indicators hear the thrust surface (slickenside striations and fracture cleavage), and the overall geometry of the main thrust, are consistent with this transport directionen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherFlexural folden_US
dc.subject.otherSimple shearen_US
dc.subject.otherTransport directionen_US
dc.subject.otherSierra de la Demandaen_US
dc.subject.otherIberian Chainen_US
dc.titlePliegues flexurales asociados al cabalgamiento de la Sierra de la Demanda en el Cerro Penalba (La Rioja)en_US
dc.titleFlexural folds linked to thrusting in the northern border of the Sierra de la Demanda (La Rioja)eng

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