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Browsing Geogaceta -- Nº 29, (2000) by Title
Now showing items 1-20 of 41
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Algunas consideraciones sobre los procesos de salinización en el acuífero Martíl-Alila (Tetuán, Marruecos)
Stitou el Messari, Jamal; Cerón García, Juan Carlos
; Pulido Bosch, Antonio; Targuisti, K.; Aoulad Mansour, N. (Sociedad Geológica de España, 2000)
A process of salinization due to marine intrusion has been detected in the detrital coastal aquifer Martil-Alila, especially in the northern of Martil city. This intrusion has been caused by local overpumping. Geochemical ... -
Análisis de frecuencia de avenidas del río Genil en Écija (Sevilla), en relación con la ocupación urbana de su llanura de inundación
Fernández, I.; Olivas, E.; Cerón García, Juan Carlos (Sociedad Geológica de España, 2000)
The city of Ecija (Sevilla), had been suffered along history several destructives events of floods. Regulation of river basin made in the 60s, was not sufficient to finish completely the overbank problems over the city. ... -
Análisis de las características geométricas y desarrollo temporal de un sistema de díaclasas en las rocas triásicas del límite Cordillera Ibérica - Sistema Central
(Sociedad Geológica de España, 2000)The mesozoic and tertiary rocks at the Iberian Range-Spanish Central System boundary in Guadalajara (Spain) depict a very important development of systematic joint sets. This study is focused on a detailed and systematic ... -
Consideraciones sobre el boro en las aguas subterráneas del Campo de Dalias (Almería)
(Sociedad Geológica de España, 2000)The study of boron content in the waters from Campo de Dalias and his relation with ions Cl' y SO',2 allows identify their principal origins. The three processes that control his distribution are related with antropic ... -
Cuantificación de los recursos hídricos en la vertiente meridional del Parque Natural de Sierra Almijara (Málaga). Consideraciones sobre su régimen de explotación
(Sociedad Geológica de España, 2000)The southern slope of the Sierra Almijara (Málaga province) is an area of great ecological value which has recently been protected as a Natural Park. Its predominant lithology is of carbonate materials (marbles belonging ... -
Datos geofísicos y evolución sedimentaria de la Depresión de la Janda (Cádiz)
(Sociedad Geológica de España, 2000)La Janda lake is located ¡rito a tectonic graben filled by Pleistocene and Holocene fluvio-marine sediments. Geophysical survey consisting on Electric-logs and seismic refraction profiles aimed to determining the thickness ... -
Datos preliminares sobre los ostrácodos de las arenas basales de la Formación "Niebla" (Depresión del Guadalquivir, S.O. de España)
Ruiz Muñoz, Francisco; González-Regalado Montero, María Luz; Baceta, Juan Ignacio; Pendón Martín, José Gabriel; Tosquella Angrill, Josep (Sociedad Geológica de España, 2000)
This work analyses the ostracofaune of the basal sands of the "Niebla“ Formation (Baceta and Pendón, 1 999). The associations permit to infer the beginning of a transgressive sequence, with a very shallow, vegetated, ... -
Deformaciones plio-cuaternarias en la region de Rabat
(Sociedad Geológica de España, 2000)The Rabat region, located in the northern border of the Moroccan Meseta, is generally considered as a present-day stable region. However, the fluvial and marine sedimentary rocks, with Pliocene and Quaternary ages, are ... -
Deformaciones recientes en el frente de la Cordillera Rifeña (Prerif, Marruecos)
(Sociedad Geológica de España, 2000)The Prerif ridges form pari of the foreland of the Rif Mountains. They are formed by superposed slices, with folds and faults, originated during the late Miocene WSWwards displacement of the Prerif units. At present, they ... -
Descubrimiento de una pista semiplantígrada de dinosaurio en el yacimiento de Tirika (Demnat. Alto Atlas central marroquí)
(Sociedad Geológica de España, 2000)There are not known too much dinosaur trackways with the metatarsus imprints. The existent dates mention abouth 30 trackways. This is the first time, one or this kind of trackway is described in Morocco. The shape of this ... -
Discontinuidad sedimentaria del Ordovícico terminal en los Pirineos centrales
(Sociedad Geológica de España, 2000)The Upper Ordovician stratigraphic sequence from the Pyrenean Axial Zone starts at a basal conglomerate, known as the Rabassa Fm in the Central and Eastern Pyrenees, that overlays unconformably an undated silicidastic ... -
Edades 39Ar/40Ar de los depósitos de Roques de García (Las Cañadas, Tenerife)
(Sociedad Geológica de España, 2000)During the evolution of the Las Cañadas volcanic edifice, debris avalanches were very significant destructive events. The Roques de Garcia unit was generated by such an event. 39Ar/40Ar dating has been carried out on ... -
El límite Ypresiense / Luteciense en la Región de Murcia (Cordillera Bética,España)
(Sociedad Geológica de España, 2000)Séveral sections has been studied across the Murcia Region in arder to select a suitable section in Spain that could be a good candidate to define the Ypresian/Lutetian boundary stratotype. The sections of Casa Carreño, ... -
El moonmilk, un depósito endokárstico singular. Presencia en cavidades españolas
(Sociedad Geológica de España, 2000)Moonmilk is an endokarstic deposit which composition and genesis is controversial. In this work, the presence of moonmilk-type deposits is summarized and studied in four Spanish caves, located in areas with different ... -
El Neógeno superior del Valle del Souss (Agadir, Sur de Marruecos)
(Sociedad Geológica de España, 2000)The present contribution shows the first approach to the sedimentological and palaeontological characteristics of two representative Upper Neogene sections of the Souss Valley (Agadir, S. of Morocco): Tildi and Ait Aouth, ... -
Episodios cuaternarios de sedimentación química en la cueva de Los Covachos (Almadén de la Plata, Sevilla)
Rodríguez Vidal, Joaquín; Álvarez García, G.; Alcaraz, J. M.; Martínez Aguirre, Arancha; Cáceres Puro, Luis Miguel; Cantano Martín, Mercedes; Caro Gómez, J. A. (Sociedad Geológica de España, 2000)
The geological and geomorphological studies in Los Covachos cave reveal a wide collection of speleothems and a thick archaeological stratigraphies. Both isotopie dating of speleothems C^ThP^U) and charcoal layers C4C), in ... -
Estratigrafía y arquitectura depositacional del "Complexo de Benfica" en la región de Lisboa, Portugal
(Sociedad Geológica de España, 2000)Eocene and Oligocene terrestrial sediments of the "Complexo de Benfica", near Lisbon, display different facies associations and two main infill sequences. They are separated by an unconformity. Depositional systems, controls ... -
Estructuras de acortamiento lateral en el frente del cabalgamiento varisco de Espiel, Córdoba (Zona Centroibérica meridional)
(Sociedad Geológica de España, 2000)In the southern part of the Central Iberian Zone (Iberian Massif), a Lower Carboniferous thrust superposed to the NE an allochthonous unit onto a paraautochthonous one. In the Espiel area, the thrust geometry includes ... -
Estudio de la capacidad de adsorción del manganeso en suelos y sedimentos fluviales del distrito minero de Linares (Jaén)
(Sociedad Geológica de España, 2000)Manganese adsorption is studied in batch experiments with material collected in the Linares mining district (Jaén). Samples were taken from a 25 cm depth horizon in Quaternary and Miocene soils and bed sediments of the ... -
Estudio sismotectónico del entorno del macizo de la Maladeta, sector de Vielha (Lérida)
(Sociedad Geológica de España, 2000)This paper is a brief description of the sismotectonic study carried out in the Vielha sector of Maladeta Massif. This work is based in data sets: historic regional seismicity; instrumental seismicity in the Pyrenees; focal ...
