Person:
Giner Robles, Jorge Luis

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First Name
Jorge Luis
Last Name
Giner Robles
URI
https://hdl.handle.net/20.500.14352/81990
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Geológicas
Department
Area
Geodinámica Interna
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1992 - 19995
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End date: 1999 × Start date: 1990 ×

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Now showing 1 - 5 of 5
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    Neotectónica del borde oriental de la cuenca de Madrid
    (Cuadernos do Laboratorio Xeolóxico de Laxe, 1994) Giner Robles, Jorge Luis; Vicente Muñoz, Gerardo de; González Casado, J.M.
    An analysis of the neotectonic activity and the current stress state of the eastern border of Madrid Basin has been carried ont using structural-methods (fault population analysis), as well as seismological methods. Two stress tensors have been established: - Tensor 1: with a N1500E shortening trend, characterized mainly by strikeslip faults. This tensor corresponds to the «Guadarrama» stress field (Capote et al., 1990), wihch causes the Central System structure; dated middle Aragonian -lower Pleistocene in the eastern border ofMadrid Basin (Muñoz Martín, 1993). - Tensor 2: dated post-lower Pleistocene, with a N150° E extension trend, characterized basically by normal faults. Actual stress tensor deduced focal mechanisms by the seismological method is compatible with the paleostress field deduced for the middle-lower Pleistocene (tensor 2).
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    Determination of present-day stress tensor and neotectonic interval in the Spanish Central System and Madrid Basin, central Spain
    (Tectonophysics, 1996) Vicente Muñoz, Gerardo de; Giner Robles, Jorge Luis; Muñoz Martín, Alfonso; González Casado, José Manuel; Lindo, Rubén
    A brittle deformation tectonic analysis was performed in central Spain (Spanish Central System and Madrid Basin) in order to decipher and understand the deformation processes that take place in a typical intracontinental zone. 1174 fault slickensides obtained in materials with ages between Late Cretaceous and Quaternary have been analyzed by means of fault population analysis methods to reconstruct paleostress tensors. Nine earthquake focal mechanisms have been determined, with magnitudes ranging between 3 and 4.1. With regard to regional structural features and sedimentary record data, the characteristics of present-day and neotectonic stress fields have been figured out, which determine the neotectonic period for this region. Thus, we have established that the intraplate zone represented by central Spain has been subjected to a stress field from the Middle Miocene until the present-day with a largest horizontal shortening direction (SHMAX) located between N130E and N160E. Finally, three paleostress maps with the main active structures are presented for: (a) Middle Miocene to Late Miocene, the period when the Spanish Central System was mainly formed, (b) Late Miocene to Quaternary, and (c) the present-day stress field, deduced from earthquake focal mechanisms.
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    Evolución y estructuras alpinas en la zona del centro peninsular
    (Cuadernos do Laboratorio Xeolóxico de Laxe, 1994) Vicente Muñoz, Gerardo de; González Casado, J.M.; Calvo Sorando, José Pedro; Muñoz Martín, Alfonso; Giner Robles, Jorge Luis; Rodríguez Pascua, M.A.
    In this paper we propose a model of tectonic and sedimentary evolution of the Spanish Central System, Toledo Mountains, Iberian - Altomira Ranges and Madrid Basin during the CenozoiCo This model hase been established from the analysis of: balanced cross sections, macro and microstructural data (analysis of brittle deformation) and the sedimentary record of Madrid Basin. These structural units, have been evolved during the Neogene, under the stress fields transmitted from the active Iberian Plate borders, the Betic and the Pyrenees. The superposition of these two regional stress tensors produces locally the «Altomira» stress field. The evolution and superposition of these regional stress fields is a gradual and long term process.
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    Local stress fields and intraplate deformation of Iberia: variations in spatial and temporal interplay of regional stress sources
    (Tectonophysics, 1999) Andeweg, Bernd; Vicente Muñoz, Gerardo de; Cloetingh, Sierd; Giner Robles, Jorge Luis; Muñoz Martín, Alfonso
    Tertiary to present deformation in the interior of the Iberian Peninsula reflects spatial and temporal variations of the activity of the plate boundaries. Local deformation patterns observed in many of the numerous intraplate Tertiary basins and their borders, such as the Madrid Basin and the Sierra de Altomira, are at first sight incompatible with the regional stress field under which they were formed. We demonstrate, however, that they can be explained as the effect of several stress fields that acted on the Iberian Peninsula from earliest Tertiary onward. Data on local deformation can constrain both magnitudes and directions of forces acting on the plate boundaries of Iberia, enabling us to estimate the relative importance of the different plate driving and deforming mechanisms providing further constraints on the tectonic evolution of Iberia.
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    El uso del método de los diedros rectos: implicaciones a partir del modelo de deslizamiento del análisis poblacional de fallas
    (Revista de la Sociedad Geológica de España, 1992) Vicente Muñoz, Gerardo de; Muñoz Martín, Alfonso; Giner Robles, Jorge Luis
    El modelo de deslizamiento implica una simetría ortorrómbica de las fallas que se mueven bajo un mismo campo deformacional. Se analizan los diagramas de diedros rectos producidos por la adición de las fallas con las simetrías que predice el modelo de deslizamiento para dos elipsoides de deformación distintos, teniendo en cuenta posibles dispersiones en las orientaciones de las fallas. Se establecen las pautas características de éstas, discutiéndose la validez de las orientaciones de los ejes principales del elipsoide de esfuerzos que se deducen, especialmente cuando éstos aparecen inclinados a partir de la adición de dos figuras con un eje principal en la vertical. Se analizan dos ejemplos de aplicación en dos situaciones tectónicas distintas, comprobándose que la combinación de dos tipos de fallas distintos (ej. fallas inversas mas desgarres) produce la existencia aparente de ejes principales inclinados. Por último se adjunta un apéndice para la rápida informatización del método. Abstract: Slip model of brittle deformation implies an orthorhombic symmetry of faults moving under an unique strain field. Right dihedra diagrams of these symmetries have been analyzed additioned by couples taking into account possible dispersions in fault trends. Characteristics patterns of these additions have been stablished, discusing the validity of the deduced plunging axes orientations. finally, an appendix is atteched showing a fast way to program the method.