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Geogaceta -- Nº 31, (2001)
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The geometry and kinematics of enclaves in sheared migmatites from the Evora Massif, Ossa-Morena Zone (Portugal)
(Sociedad Geológica de España, 2001)In the Montemor-o-Novo high-grade metamorphic terraines of western Ossa-Morena Zone (Portugal), sheared migmatites display a wide variety of distinct mesoscopic structures. Relationships of leucosome-melanosome layering ... -
Técnicas experimentales para el análisis de la actividad bioerosiva de Patella rustica Linnaeus, 1758 (Mollusca; Gastropoda; Patellidae) del litoral rocoso de Mallorca (Mediterráneo occidental)
(Sociedad Geológica de España, 2001)Bioerosion is the biological breakdown of hard substrates by boring, grazing, etchting and abrading organisms. Many marine intertidal gastropods, such as limpets, contribute to the erosion by grazing rock substrate in the ... -
Relaciones entre la hidrología subterránea y la estructura geológica en la Sierra de Tramuntana de Mallorca (Islas Baleares)
(Sociedad Geológica de España, 2001)The overall structure of the island of Mallorca consists of a set of horsts and grabens which are bounded by Upper Miocene-Quaternary listric normal faults. Horsts are segments of a Lower Miocene thrusted and folded belt ... -
Prueba de Radiolocalización y Radioenlace entre Candanchú y el Túnel Ferroviario Internacional de Canfránc (Huesca)
(Sociedad Geológica de España, 2001)A new device for underground radiolocation and radio conection was tested betweeen the railway tunnel of Canfranc and the sky ressort of Candanchu. The results provide a radiolocation through 500 m. of limestone and wet ... -
Procesos de erosión acelerada en la cuenca alta del río Monachil (Granada)
(Sociedad Geológica de España, 2001)The conditioning of the Skiing Station of Sierra Nevada (1990-1996) produced a high impact on river Monachil headwaters, mainly on geomorphology and surface waters. Protecting and correcting measures applied during station ... -
Procesos de karstíficación polifásica en las canteras de Crema Marfil (Pinoso, Alicante). Aplicación a la explotación de rocas ornamentales
(Sociedad Geológica de España, 2001)Complex speleothem networks have been recognised in the quarries of the commercial marble Crema Marfil (Paleogene limestones, Monte Coto Pinoso, Alicante). The characterisation of these speleothems (mineralogy, petrography, ... -
Primeros datos paleobotánicos y palinológicos de una flora miocènica procedente de la unidad intermedia en el sector central de la Cuenca de Madrid
(Sociedad Geológica de España, 2001)For the first time macroremains flora of Miocene from Madrid are studied. On the basis of this palaeobotanical and palynological studies more over 110 taxons have bee distinguished. The plant association is very hetogeneous ... -
Paleosalinidad y tamaño de las valvas del ostrácodo Cyprideis torosa (Jones) en niveles del Pleistoceno inferior y medio
(Sociedad Geológica de España, 2001)The correlation between the size of Lower and Middle Pleistocene Cyprideis torosa Cores) ostracode valves and paleosalinity reveal the existence of a direct relationship though little significant. This observation suggest ... -
Modificaciones de los parámetros ambientales de la Cueva de Nerja provocadas por la entrada de visitantes
(Sociedad Geológica de España, 2001)In Nerja Cave, since 7 993 to present time, the values of underground atmosphere parameters (air and rock temperature, relative humidity, C02 concentration and number of visits) have been controlled to verify the anthropogenic ... -
Trazas afines a Imbrichnus wattonensis HALLAM de edad Albiense en el Prebético de Alicante (Serra Celada)
(Sociedad Geológica de España, 2001)Albian trace fossils related to Imbrichnus wattonensis HALLAM were studied in the "Prebetico de Alicante". Meniscate backfilling with imbricated sandy/ruditic clasts characterized this ichnogenus with regard to Taenidium., ... -
Los materiales del tránsito Triásico-Jurásico en la región de Villaviciosa (Asturias, España). Caracterización palinológica
(Sociedad Geológica de España, 2001)A lithostratigraphic and palynologic study of the sediments corresponding to the Triassic-Jurassic transition at the Bárzana section, located in the Villaviciosa region (Asturias), has been carried out. Four lithostratigraphic ... -
La Sierra de Cártama: Pliegue con actividad reciente en las Béticas Occidentales (Hoya de Málaga)
(Sociedad Geológica de España, 2001)In this work is shown how an active fold (the Sierra de Cartama fault) is marked by the drainage pattern and topography, besides of structural data. The Sierra de Cartama fold is an asymmetric fold with double plunge and ... -
La sección Messiniense - Plioceno de Crevillente (Cordillera Bética oriental): expresión de la crisis de salinidad del Mediterráneo
(Sociedad Geológica de España, 2001)A composite stratigraphic section in Crevillente (eastern Betic Cordillera) is studied. It represent a complete stratigraphical and paleontological record of the Messinian and Lower Pliocene. Two discontinuity surfaces ... -
Geometría y Cinemática de Fallas recientes en el margen septentrional del mar de Alborán (sector de Maro, provincia de Málaga)
(Sociedad Geológica de España, 2001)The more recent structures in the northern continental margin of the Alboran Sea are NW-SE high-angle normal faults, oblique to the present coastal line and also to the actual crustal thinning pattern. The geometry and ... -
Funcionamiento hidrodinámico del epikarst de la Cueva de Nerja (Málaga)
(Sociedad Geológica de España, 2001)The Nerja Cave allows to study the hydrodynamic functioning of the epikarst of the aquifer in which it is developed. The hydrograph of the drip water inside the Cave, versus the precipitations, and the application of the ... -
Folding development in the Penibetic Units around the western front of the Alboran Domain (Betics)
(Sociedad Geológica de España, 2001)Miocene shortening within the Penibetic Units (South Iberian Domain) near the western end of the Alboran Domain (Betics hinterland) developed in two phases with different morphologic and structural characteristics. F1 folds ... -
Fases de karstificación y sedimentación endokárstica pliopleistocenas en el mediterráneo occidental: evolución de la Cueva de Nerja (Málaga, sur de España)
(Sociedad Geológica de España, 2001)Evidence of several phases of karstification and sedimentation in Nerja Cave (Malaga, southern Iberian Peninsula) is pointed out. The mentioned phases could be representative of the Plio-Quaternary endokarstic evolution ... -
Experiencia de visitas masivas a cavidades en condiciones naturales: la Cueva del Agua de Iznalloz (Granada)
(Sociedad Geológica de España, 2001)The regime of visits in the Cueva del Agua is strictily restricted what allows to carry out an environmental control of the cave under natural conditions before the realization of any tourist activity inside. An underground ... -
Interpretación geocronológica de la karstificación en el entorno del Sistema Central español a partir de los yacimientos paleontológicos asociados
(Sociedad Geológica de España, 2001)A review of previously published palaeontological data, jointly with new discovered fossils, allowed to stablish that the older fossils into detritic endokarstic deposits in the studied area are of Lower to Medium Pleistocene ... -
Influencia de los episodios lluviosos recientes en la recarga del acuífero del Ventos-Castellar (Alicante)
(Sociedad Geológica de España, 2001)The Ventós-Castellar aquifer is a small karstic system located in the province of Alicante (Spain). An exhaustive monitoring is being acomplished on this aquifer to quantify its natural recharge. The study of the piezometric ...