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Geogaceta -- Nº 16, (1994)
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Recent Submissions
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Geometría, piezometría y parámetros hidráulicos de los acuíferos de la cuenca baja del río Loukkos (Marruecos)
(Sociedad Geológica de España, 1994)The alluvial materials of the Loukkos river (Morocco) downstream from Ksar-El-Kebir present transmissivity values in the 10-3 - 10-2 m2/s range and storativity values of 10-4-10-3 . The adjacent Oulad-Ogbane conglomerate ... -
Serie Basáltica Antigua Inferior en el sector de Hermigua. Isla de la Gomera
(Sociedad Geológica de España, 1994)Lower Old Basaltic Series had only been described W of the Basal Complex in Alojera -Tazo area but it is also well exposed in other zones on Comera as in Hermigua area E of the Basal Complex. Here, the basaltic lava flows ... -
Rellenos de valles encajados en el Maastrichtiense superior y Paleógeno inferior de Alava (Plataforma Noribérica, Cuenca Vasca)
(Sociedad Geológica de España, 1994)Three examples of sillciclastic valley fills are recognized within the upper Maastrlchtian-lower Paleogene carbonate platform deposits of Alava. A genetic model, in the context of sequence stratigraphy, makes it evident ... -
Nuevos datos sobre la petrología y procedencia de la Formación Miers Bluff, Isla Livingston, Islas Shetland del Sur
(Sociedad Geológica de España, 1994)The turbidites of the Miers Bluff Formation have been pelrologically analised and some compositional parameters have been calculated. The use of several ternary diagrams allow for some provenance speculations such as a ... -
Un sistema de paleoalto carbonatado-surco siliciclástico (Gorbea-Artzentales, Albiense medio, Bizkaia)
(Sociedad Geológica de España, 1994)During the middle Albian, fault block synsedimentary activity induced the formation of a paleohigh (Corbea) and an adjacent sedimentary trough, While (he high was exposed in the subaerial meteoric environment realm, the ... -
Testificación geofísica en granitos
(Sociedad Geológica de España, 1994)In this paper we analyze fractures with logs performed in deep wells in granitic rocks. We explain the methodology followed for determining these fractures and their characteristics: clay content, fluid content, closed or ... -
Sr-Nd isotopic heterogeneities in high-grade metamorphic conditions: an example from the anatectic complex of Toledo (Spain)
(Sociedad Geológica de España, 1994)Preliminary data on the study of Sr-Nd isotopes in metapelitic, restite-rich granitoids and anatectic leucogranites from the Anatectic Complex of Toledo (Centro-lberian Hercynian zone), reveal the absence of isotopic ... -
Nuevos datos sobre la litoestratigrafia del Eoceno-Oligoceno inferior de la zona suroriental de la Cuenca del Ebro (Sector de Pontils-Montblanc, provincias de Tarragona y Barcelona)
(Sociedad Geológica de España, 1994)This paper deals with new data on the lithostratigraphy of the Upper Paleocene-Lower Oligocene successions in the Pontils-Montblanc area (western part of the southeastern margin of the Eastern Ebro Basin, NE Spain). The ... -
Nuevos datos estratigráficos de la Unidad Central, Hauz Intermedio (Dorsal Rifeña). Consecuencias paleogeográficas
(Sociedad Geológica de España, 1994)The presence both of radiolarites, attributed to the Dogger-Malm, and grey marls from the early Late Eocene in the Intermediate U n it o f the Haouz M ountains (Rifian Dorsal) indicates that the sea occupied the area at ... -
Las «megaturbiditas» y otros depósitos de resedimentación carbonatada a gran escala del Eoceno surpirenaico: nuevos datos del área Urrobi-Ultzama (Navarra)
(Sociedad Geológica de España, 1994)The number of carbonate megaturbidites and related deposits in the Urrobi-Ultzama area, west part of the South-pyrenean Eocene basin, is greater than was hitherto realized. Planktonic foraminifera analyses also demonstrate ... -
Modelo hidroquímico de sedimentación de glauberita-halita: sondeo PURASAL, Formación Yesos de Zaragoza (Mioceno Inferior, Cuenca del Ebro)
(Sociedad Geológica de España, 1994)The geochemical study of halite samples belonging to PURASAL borehole (Zaragoza Gypsum Fm., non-marine Lower Miocene, Ebro Basin, Spain) shows low contents for Br, Mg and l<. The study of fluid inclusions (Cryo-SEM -EDS ... -
Modelo alternativo para el desarrollo de calcretas: Un ejemplo del Plio-Cuaternario de la cuenca de Madrid
(Sociedad Geológica de España, 1994)Plio-Quaternary calcrete profiles from the Mesa de Ocaha, South of Madrid Basin, have developed by vertical accretionary processes and differ from the classical model of calcrete development based on studies in the United ... -
La falla de Ubierna (margen SO de la cuenca Cantábrica)
(Sociedad Geológica de España, 1994)The Ubierna fault is a major structure in the southern margin of the Cantabrian Basin. It controlled the subsidence during the intra-Mesozoic extensional event allow ing the deposit of progressively to the north thicker ... -
La evolución temporal de los minerales de la arcilla en el Pérmico superior y Triásico de Cuenca y Teruel (Cordillera Ibérica SE)
(Sociedad Geológica de España, 1994)Clay mineralogy of the continetal and shallow marine sediments of Permian and Triassic age of the SE Iberian Ranges is a neglected subject. The present study shows the temporal variations of clay mineral assemblages and ... -
La Cuenca Central de Bransfield (NW de la Peninsula Antàrtica): primeros resultados de la campaña GEBRA'93
(Sociedad Geológica de España, 1994)The GEBRA '93 (Geological Evolution of the Bransfield Basin) survey was carried out in December 1993 in the Bransfield Strait (NW Antarctic Peninsula) and adjacent areas, onboard BIO Hespérides. The geophysical data ... -
Introducción al estudio de indicios manganesíferos, situados en las inmediaciones de Requena, País Valenciano
(Sociedad Geológica de España, 1994)Inside the sector of «Muntanya de Valencia» (Iberian Range), there are a number of Mn mineralizations. Some of these deposits have been explored for mining. In every case there are paleokarst mineralizations which have ... -
Hallazgo de Parotosuchus sp. (Amphibia, Temnospondyli) en las facies Buntsandstein del Pia de la Calma (Cordilleras Costeras Catalanas): resultados preliminares
(Sociedad Geológica de España, 1994)The tetrapod fauna of La Mora site (Montseny massif) is located in the Buntsandstein facies at the lower part of the « Areniscas y lutitas del Figaró» unit. This fauna is found within a sandy, fluvial channel-fill and is ... -
Geometría de los volcanes de lodo y de los pliegues de la Dorsal Mediterránea al Sur de Creta (Mediterráneo Oriental)
(Sociedad Geológica de España, 1994)Side scan sonar images and high resolution profiles obtained with the R/V Gelendzhik in the 1993 cruise of the TREDMAR program, give new information on the geometry of the mud volcanoes, folds and fractures located in the ... -
Geometría y sistemas de flujo en el acuífero de Turón-Peñarodada (Almería-Granada): implicaciones estruccturales
(Sociedad Geológica de España, 1994)The results of a pumping/recovery test and those of a physico-chemical sampling of groundwater from the Turon-Peñarrodada triassic carbonate aquifer (Almeria and Granada provinces, SE Spain), together with the analysis of ... -
Fracturación y deformaciones sinsedimentarias en el Eratosthenes Seamount (Mediterráneo Oriental)
(Sociedad Geológica de España, 1994)The Eratosthenes Seamount is located in the Eastern Mediterranean, between the Levantine Platform to the South and the Cyprus Margin to the North. During the 3rd leg made by the RA/Gelendzhik (TREDMAR-1993 UNESCO Programme) ...
