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Browsing Geogaceta -- Nº 24, (1997) by Title
Now showing items 1-20 of 78
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The Aguablanca Cu-Ni(PGE) intraplutonic ore deposit (Extremadura, Spain). Isotope (Sr, Nd, S) constraints on the source and evolution of magmas and sulfides
(Sociedad Geológica de España, 1997)The Aguablanca Cu-Ni(PGE) ore is a case of an intraplutonic ore deposit. It is hosted by mafic and ultramafic cumulates of the Aguablanca Stock, which is part of the larger calc-alkaline Santa Olalla Plutonic Complex of ... -
Análisis multivariante de elementos traza y mayoritarios en aguas subterráneas del acuífero de Campo Arañuelo y en las manifestaciones salobres asociadas a los granitos (Fosa occidental del Tajo)
(Sociedad Geológica de España, 1997)In this work, we have performed a multivariate analysis of trace elements and majoritary ions from water samples recollected in eighteen wells and four springs of Campo Arañuelo aquifer (western Tajo Basin) and its granitic ... -
Aporte de solutos por cursos superficiales a la laguna de Fuente de Piedra (Málaga)
(Sociedad Geológica de España, 1997)The abnormally wet conditions of the 1996 and 1997 years have induced the streamwater flow to the Fuente de Piedra salt lake (Málaga). Samples of water from the main streams have been collected and analysed, showing different ... -
Asociaciones de ostrácodos continentales de la Fm. Aguilar (Jurásico superior-Cretácico inferior, Cuenca Vascocantábrica)
(Sociedad Geológica de España, 1997)The fossiliferous content of the Aguilar Fm. (latest Jurassic-earliest Cretaceous, Bascocantabrian Basin, N. Spain) consist mostly of ostracods, clavatoraceans, porocharaceans and gastropods, plus minor remains of fishes, ... -
Cambios en la estructuración sedimentaria de los depósitos Cuaternarios del Margen Continental Suribérico Atlántico
(Sociedad Geológica de España, 1997)A. significative change in the Plio-Quaternary strati graph ¡cal architecture of the Gulf of Cadiz continental margin between Cadiz City and San Vicente Cape has been evidenced by means of a seismic stratigraphy analysis. ... -
Caracterización paleontológica y bioestratigráfica de la especie de ammonites: Perisphinctes wartae Bukowski (Biozona Transversarium, Oxfordiense medio) en las cuencas ibérica y catalana (E. Iberia)
(Sociedad Geológica de España, 1997)The ammonite species Perisphincjtes (bichotómosphinctes) wartac BUKOWSKI is precisely localised at the top of the middle Oxfordian Transversarium Biózohe (Rotoides Subbiozone) allowing the recognition of a well-defined ... -
Caracterización, tecnología de fabricación y calidad de los materiales de construcción del monumento funerario de Fabara (Zaragoza)
(Sociedad Geológica de España, 1997)It has been studied the materials (rock and mortar) used in the construction of the Fabara's Mausoleum (Zaragoza) in order to stabilish the relation between their compositional-textural characteristics and their chronology, ... -
Carbon and oxygen isotopic variations applied to the study of carbonate diagenesis in the Landraves Formation (Thanetian, Burgos, Northern Spain)
(Sociedad Geológica de España, 1997)We have studied the dolomitization and calcitization processes that have widely affected the Landraves Formation sediments (Thanetian) at Valdivielso Valley (Burgos). The unit was deposited in a shallow marine environment'with ... -
Contenido en elementos metálicos de las aguas superficiales del distrito minero de Linares (Jaén)
(Sociedad Geológica de España, 1997)An important mining activity on metallic sulfides ores (dykes in a granitic batholith), now abandoned, was histbrically developed in the Linares area (Jaén, Spain). Samples of leachates from minéral wastes have been studied ... -
Cueva Coro Tracito (Telia Sin, Huesca) el primer yacimiento de alta montaña español de Ursus spelaeus Ros.-Hein. Nota preliminar
(Sociedad Geológica de España, 1997)In this paper we present the first results of metrical analysis of premolar and molar lengths and metacarpal length and width of Ursus spelaeus Ros.-Hein. from Coro Tracito cave, the first cave bear high mountain site in ... -
Datos preliminares sobre el metamorfismo de la Sierra de Pie de Palo, Sierras Pampeanas Occidentales (Argentina)
(Sociedad Geológica de España, 1997)The Sierra de Pie de Palo belongs to the Western Sierras Pampeanas. Although still poorly known in detail, the sierra consists of a relatively autochthonous sequence of shelf sediments metamorphosed to low grade (the Caucete ... -
Depósitos de tormenta en una rampa carbonatada: implicaciones sobre el origen del fango carbonatado acumulado en su zona distal (Kimmeridgiense, Cuenca Ibérica)
(Sociedad Geológica de España, 1997)Facies distribution and sedimentary procceses in a storm dominated carbonate ramp (Kimmeridgian, northern Iberian basin) is studied in detail. Shallow ramp areas are dominated by coral reef facies. They grade basinsward ... -
Desarrollo de estructuras agradacionales generadas por oleaje en lagos someros carbonatados. Un ejemplo del Oligoceno superior de la Cuenca del Ebro
(Sociedad Geológica de España, 1997)During the upper Oligocene a carbonated shallow lacustrine system developed in the central sector of the Ebro Basin. The lacustrine system was closely related to alluvial systems spreading from the margins to the centre ... -
Determinación de patrones de fracturación en el Neógeno del NE de la Cuenca del Duero a partir de una imagen de satélite
(Sociedad Geológica de España, 1997)FrOm.the study of satellite imagery, up to 1.396 lineaments on Neogene rocks of the northeastern Duero Basin have been identified. Length of lineaments fluctuates from 137 to 19.818 m. The statistical analysis of lineament ... -
Disminución del espesor del casquete glaciar de la isla Livingston
(Sociedad Geológica de España, 1997)New evidences support that areal retreat of Livingston Island ice-cap (South Shetland Islands) since 1956, is accompanied by a marked ice thinning. Field observations, aerial photographic measures, topographic profiles and ... -
Distribución de las asociaciones de Nodosariidae y Epistominidae (foraminíferos bentónicos) en sedimentos superficiales del margen septentrional del Golfo de Cádiz
(Sociedad Geológica de España, 1997)A descriptive study ana distribution area of modern benthic foraminifers of the Families Nodosariidae Ehrenberg, 1838 and Epistominidae Wedexind, 1937, from the surface sediments on the northern Cadiz Gulf have been ... -
Edad del "Tramo de transición" entre el Pérmico y el Jurásico en el área de Gijón (Asturias, NW de España)
(Sociedad Geológica de España, 1997)Palynological study of black marls below the Jurassic doldmltic limestones (Gijdn Formation) in the Gijdn Area (Asturias, NW Spain) show them to be of Rhetian (late Triassic) age. It appears that the so-called "transitional ... -
Edad Oligoceno superior - Mioceno inferior para las superficies de erosión conservadas en el flanco SW de la cubeta de Bordón. (Provincia de Teruel, España)
(Sociedad Geológica de España, 1997)In the northeast Iberian Chain, a widespread erosional surface developped on top of the external -northern-imbricate thrust-system which involves the Mesozoic cover and developped during the Alpine contraction (Palaeogene ... -
El Aptiense de Lanestosa (Bizkaia): implicaciones paleotectónicas
(Sociedad Geológica de España, 1997)The Aptian of Lanestosa is analyzed based on detailed mapping and facies analysis. Four sedimentary units are differentiated: a basal terrigenous unit and three overlying carbonate platform units. Units boundaries 2-3 and ... -
El Aptiense inferior del Anticlinorio Nor-Vizcaino entre Gernika y Azpeitia (Cuenca Vasco-Cantábrica)
(Sociedad Geológica de España, 1997)The Lower Aptian of the North-Biscay Anticlinorium between Gernika and Azpeitia outcrops in three anticlines: Gernika, Nabarniz (Narea) and Azpeitia. Three representative sections of these outcrops have been dated, correlated ...
