Thesis Collection
Last Deposit
Geogaceta -- Nº 25, (1998)
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Recent Submissions
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Petrología de diques doleríticos y basaltos, Pérmico superior, en el Macizo de Cinco Villas (Pirineo Navarro)
(Sociedad Geológica de España, 1998)The Upper Permian magmatism in the Cinco Villas Massif (Navarra, Western Pyrenees), is represented in two kinds ofcogenetic products: a) three reduced basins, with strongly altered basaltic sills and b) dolerite dykes, ... -
Variación en los parámetros del sistema calcocarbónico del agua subterránea por infiltración del lixiviado del vertedero de La Mina (Málaga)
(Sociedad Geológica de España, 1998)The leachate produced ¡n La Mina landfill has affected the groundwater quality in its surroundings. The chemical composition of the waters from two wells points and the main spring of the aquifer have been controlled. Great ... -
Una discontinuidad estratigráfica de 6 m.a. en las calizas albienses de Aitziber (Navarra)
(Sociedad Geológica de España, 1998)The Aitziber calcarenites is a sedimentary unit of Upper Albian (appenninica with buxtorfi zone) age. The top of this unit records an unconformity of at least 6 m.a.. The hiatus extends from the uppermost Albian to lower Turonian -
Vertidos de escorias en el Rio Oka (Reserva Natural de la Biosfera de Urdaíbaí, Vizcaya): Aspectos mineralógicos y geoquímicos
(Sociedad Geológica de España, 1998)As a part of a wider effort to provide a view of the environmental conditions of some basque rivers, mineralogy and heavy metal geochemistry of foundry slags dumped in the Oka river (Vizcaya) and sediments were studied. ... -
Tortugas y sirenios fósiles en el Eoceno marino de Navarra y Cuenca de Jaca
Astibia, H.; Murelaga, Xabier; Payros, Aitor; Pereda Suberbiola, Xabier; Tosquella Angrill, Josep
(Sociedad Geológica de España, 1998)
We report several remains of turtles and sirenians from the marine Eocene (Bartonian) of the Pamplona Area (Navarre) and Santa Cilia de Jaca (Huesca), South Pyrenean Basin. Turtles are represented by fragmentary neural ... -
The largest mercury anomaly on Earth (Almadén, Spain): a mantle-derived feature?
(Sociedad Geológica de España, 1998)The Almadén Hg deposits are associated with deeply altered magmatic rocks, which main features are briefly described here. Geochemical, including isotopic, data on these rocks suggest that they are derived from deep mantelic ... -
Sondeos de investigación en un acuífero kárstico costero (Castell de Ferro, Granada)
(Sociedad Geológica de España, 1998)Data from 4 investigation boreholes, drilled in the marbles of the Castell de Ferro aquifer and separated some 5 m each one from the next one, are discussed. Several karstic discontinuities are detected at different depths ... -
Sistemas de protección de costas (I): Regeneración de playas. El ejemplo del Maresme (1987-1998)
(Sociedad Geológica de España, 1998)After repeated construction of permanent structures to prevent erosion in the Maresme coast (NE Barcelona), artificial nourishment of beaches started in late 80's. Ten years of beach monitoring have allowed to evaluate the ... -
SISTEMA DE PROTECCIÓN DE COSTAS (II): DRENAJE DE PLAYAS (BMS). EXPERIENCIA DEL SISTEMA EN EL DELTA DEL EBRO
(Sociedad Geológica de España, 1998)The Ebro Delta Coast is under a continuous coastal retreat estimated in about 50 m/year in the delta front, due to the reduced sediment transport by the river. Two experimental actions were tested to protect this coast. ... -
Relaciones estadísticas entre las propiedades hidrodinámicas y geoeléctricas del acuífero de Charf El Akab ( Marruecos )
Achagra, L.; Sarroukh, M.; Benjbara, A.; Stitou el Messari, Jamal; Cerón García, Juan Carlos (Sociedad Geológica de España, 1998)
It is considered the examen of statistical relationship between the transmissivity and transverse resistance of the water bearing materials of the CharafEl Akab, where larges samples of both parameters are available, is ... -
Paleoesfuerzos en las cuencas de antepaís en la parte noroccidental del arco de gibraltar (mioceno superior-actualidad)
Camacho Cerro, Manuel Alejandro; García Navarro, Encarnación; Fernández Rodríguez, Carlos; Alonso Chaves, Francisco Manuel (Sociedad Geológica de España, 1998)
Graphical and numerical methods of fault slip data inversion have been applied to obtain palaeostress reconstructions in Neogene and Quaternary basins, located in the northwestern part of Gibraltar Arc. The most important ... -
Nuevos datos sobre macroflora del Plioceno en el Suroeste de la Península Ibérica (Lepe, Huelva, España)
Muñiz Guinea, Fernando; Mayoral Alfaro, Eduardo; Barrón, E.; Cachão, Mário (Sociedad Geológica de España, 1998)
A new macroflora outcrop, post-Upper Zanclian (Lower Pliocene at least) in age is discovered at first time in the Southwestern sector of the neogene Guadalquivir Basin (near to Lepe, Huelva, Spain). The taxa are mainly ... -
Nueva interpretación de la geología de la mina romana de Las Médulas. El Bierzo, León
(Sociedad Geológica de España, 1998)In the Las Médulas site, red tertiary facies were exploited for gold during roman times. That facies, mainly composed by conglomerates and sandy silts have been interpreted as the final phase of infilling of an endorreic, ... -
Modelización hidrogeoquímica del agua de infiltración en la Cueva de Nerja (Málaga)
(Sociedad Geológica de España, 1998)A hydrochemical study of the drip water in the Nerja Cave has been carried out using geochemical modeling. Results indicate that major ions in the infiltration water are meteoric in origin (évapotranspiration of rain water ... -
Mineralización de elementos del grupo del platino (EGP) en las cromititas de los macizos ultramáficos del Complejo de Cabo Ortegal
(Sociedad Geológica de España, 1998)Many different platinum-group minerals (PCM) have been observed in the chromitites of the Cabo Ortegal complex, one of five Paleozoic ultramafic bodies that crop out in the NW of the Iberian Peninsula. Chomitites are ... -
Minerales del grupo del platino y fases asociadas en el depósito de Ni-Cu-(EGP) de Aguablanca, SW España
(Sociedad Geológica de España, 1998)Aguablanca is a Ni-Cu-(PCE) sulphide mineralization associated to mafic facies of the Santa Olalla hercynian intrusion. The sulphides occur as disseminated ore, massive ore and brecciated ore related to gabbros, norites ... -
Los abanicos aluviales de la cuenca pérmica del Viar (SO de España): Caracterización sedimentológica y petrográfica
Sierra del Pino, Sonia; González Barrionuevo, Felipe; Moreno Garrido, María Carmen (Sociedad Geológica de España, 1998)
Sedimentological and petrographic features of "red beds" at the northwest extreme of the Permian Viar Basin suggest that they were alluvial fans related with a main fault which was the original northern basin limit. Location ... -
Las areniscas de la Catedral de Sigüenza (Guadalajara): estudio petrológico
(Sociedad Geológica de España, 1998)The Cathedral of Siguenza (13rd Century) was built with stony materials, mainly sandstones (arkoses). Three different types of rocks are distinguished: red, green and yellow sandstones with coarse to medium grain-size. ... -
Relación entre la macroestructura del sector oriental de la Cuenca de Almazán y la ubicación de los manantiales termales de Deza, Embid, San (taquillo, Alhama y Jaraba (provincias de Soria y Zaragoza)
(Sociedad Geológica de España, 1998)The Deza, Embid, San Roquillo, Alhama and Jaraba thermal springs are located in the contact between the Almazan Basin and the Iberian Chain (Aragonesa Branch). The study of deep-geophysics, surface geology and groundwater ... -
Procesos de transformación y neoformación de esmectitas en los materiales volcanoclásticos de la isla de La Palma (Canarias)
(Sociedad Geológica de España, 1998)Clay minerals from the volcaniclastic deposits of the three different sedimentary settings (paleosols, continental lacustrine and transitional, fan delta) have been studied by X-ray, MEB y TEM. The clay fraction of this ...
