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Browsing by Author "García Dueñas, V."
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El despegue extensional de Lahsene y los jirones de serpentinitas del anticlinal de Taryat (Melilla, Rif)
(Sociedad Geológica de España, 1994)The Taryat anticline, between Melilla and the Cabo Tres Forcas, folds an extensional detachment fault with SW transport sense. The fault is sealed by Tortonian marine sediments that were also folded. The hanging wall of ... -
Estructuración de los Mantos Alpujárrides al W de Málaga (Béticas, Andalucía)
(Sociedad Geológica de España, 1990)The position and kinematics of shear zones, which developed under different P-T conditions, lead to redefine the Western Alpujarride nappes: Los Reales nappe group (Jubrique and Bermeja nappes, plus the Benarrabá imbrications) ... -
Estructuras extensionales en las Unidades Alpujárrides y Maláguides de la Sierra de la Tercia (Murcia, Béticas Orientales)
(Sociedad Geológica de España, 1998)The Alpujarride and Malaguide units of Sierra de la Tercia had been interpretad as a pile of thrust sheets with southward transport sense. Allthough the study of the contacts between these units has shown that they normaly ... -
Evolución rotacional de las Béticas externas occidentales a partir de estudios paleomagnéticos
(Sociedad Geológica de España, 1994)A paleomagnetic study in Upper Jurassic limestones from the Western Subbetics indicates that these rocks have undergone a widespread and pervasive remagnetization during the Neogene. The original primary Jurassic magnetization ... -
Evolución tectono-metamórfica de la unidad extensional de Adra (Complejo Alpujárride, Béticas centrales): Resultados preliminares
(Sociedad Geológica de España, 1996)In the central Betics, the Adra unit represents the higher unit of the Alpujarride complex. This unit is bounded by Miocene low-angle normal faults. The lithostratigraphic sequence of Adra unit includes, from bottom to ... -
Fallas de despegue extensional miocenas en el área de Sierra Tejeda (Béticas centrales)
Alonso Chaves, Francisco Manuel
; García Dueñas, V.; Orozco, Miguel (Sociedad Geológica de España, 1993)
In the Sierra Tejeda area, NE Malaga, the existence of detachments and low angle normal faults has been recognized. The faults developed during three Miocene extensional events of AquitanianBurdigalian, probably Langhian ... -
Fallas normales de bajo ángulo a gran escala en las Béticas occidentales
(Sociedad Geológica de España, 1990)Low angle normal faults (LANF) related with extensional detachments are mapped in the Western Betics. They developed during the Middle and Late Miocene on continental crust which was previously thickened by fold- and ... -
Generaciones de cabalgamientos y pliegues recumbentes en los Mantos Alpujárrides entre Ronda y Almería, Cordilleras Béticas
(Sociedad Geológica de España, 1987)Synmetamorphic thrust nappes, related to the Los Reales Crustal Thrust within the Alpujarride Nappes, moved in an ENE or NE direction. A subsequent movement took place in a northerly direction and large fold nappes were ... -
Grandes fallas de contracción y de extensión implicadas en el contacto entre los dominios de Alborán y Sudibérico en el arco de Gibraltar
(Sociedad Geológica de España, 1986)Constitutive units of Alboran and Sudiberic Domains near Gibraltar Arc are specified. The boundary between both domains results from a crustal scale westward transpressive thrust and superimposed Iow angle normal faults ... -
High pressure mineral assemblages in the Trevenque Unit (Central Alpujarrides, Andalucía)
(Sociedad Geológica de España, 1991)The Trevenque Unit is located in the Alpujarride Complex. In this unit, the Fe-Mg carpholite, cloritoid, chlorite, kyanite aragonite assemblages show metamorphic evolution at HP-LT conditions The metamorphic peal< is ... -
La falla normal de bajo ángulo de Tejeda: un ejemplo de la deformación miocena en las Béticas centrales
Alonso Chaves, Francisco Manuel; Orozco, Miguel; García Dueñas, V.; Mayoral Alfaro, Eduardo (Sociedad Geológica de España, 1994)
The existence of a major extensional fault in Sierra Tejeda, Central Betics, developed during the middle Miocene, is evidenced. The Tejeda, Venta de Palma, Bentomiz and Alcaiceria units make up the hanging-wall o f the ... -
Middle Miocene extensional faulting events and Alpujarride Units in the Central Betics
(Sociedad Geológica de España, 1993)In the Central Betics, the Alpujarride Complex is made up of units which result from the dismembering of pre-Miocene fold nappes during a Late Burdigalian (?)-Langhian extensional event -
Registro metamorfico de alta presión-baja temperatura en la unidad de Jubrique e imbricaciones de Benarrabá (Cordillera Bético-Rifeña)
(Sociedad Geológica de España, 1994)The presence of carpholitep seudomorphs and the kyanite-chloritoid-chlorite association in the Jubrique unitphy/iites and in the Benarrabá imbrications indicates metam rphic conditions of T < 450º C and P> 8 Kb. This means ... -
Relación estructural entre los cuerpos peridotíticos situados al Norte y al Sur del Estrecho de Gibraltar
(Sociedad Geológica de España, 1994)The peridotite bodies of the Bedes and Rif, on either side of the Strait of Gibraltar, are intercaled among the highest units of the Alpujarride complex. Before Miocene times, they must have constituted an uitramaficsiab ... -
El sentido de desplazamiento de los Mantos Nevado-Filábrides
(Sociedad Geológica de España, 1987)The Veleta Unit and the Mulhacen nappe Group (Calar Alto and Bédar-Macael Nap pes) make up the Nevado-Filábride Complex. The westward movement of the both nappes occurred along NW to WSW trajectories. In the Sierra Nevada, ... -
Sobre el adelgazamiento mioceno del Dominio Cortical de Alborán, el Despegue Extensional de Filabres (Béticas orientales)
(Sociedad Geológica de España, 1988)In the Alboran Domain, the Alpujarride/Nevado-Filabride major boundary is a brittleductile and brittle detachment (Filabres Extensional Detachment, FED) which thinned the Nevado-ñlabride complex during the Miocene. The FED ... -
Valor de la deformación dúctil asimétrica en el ortogneis de Lubrín (Manto de Bédar-MacaeI, Complejo Nevado-Filábride, Béticas)
(Sociedad Geológica de España, 1989)Se ha estudiado la tensión en un cuerpo ortogneisico (Lubrín orthogneiss) del Bédar-Macael Nappe deformado por una gran zona de cizallamiento con un tejido mylonitic asociado. El patrón asimétrico en los sistemas ... -
La zona de cizalla del contacto entre el grupo de mantos del Mulhacén y la unidad del Veleta (Sierra Nevada y Sierra de los Filabres, Andalucía)
(Sociedad Geológica de España, 1986)The existence of an important ductil shear-zone developed in relation with the emplacement of the Mulhacen nappes group on the Veleta Unit (Betic Cordilleras) is manifested. The overlaping in the ENE sense is over 200 km ... -
La zona de falla de Torres Cartas, conjunto de fallas normales de bajo ángulo entre Nevado-Filábrides y Alpujárrides (Sierra Alhamilla, Béticas Orientales)
(Sociedad Geológica de España, 1986)The Torres Cartas Fault Zone is a large low-angle extensional structure, strongly thinning the Nevado-Filabride and Alpujarride nappes. These nappe complexes form the basement of the Alboran sea southwest Sierra Alhamilla. ...
