Thesis Collection
Last Deposit
Browsing Geogaceta -- Nº 34, (2003) by Issue Date
Now showing items 1-20 of 53
-
High temperature - Low pressure tectonites from the Boa Fé Fault Zone (Évora Massif, Ossa Morena Zone, Portugal): Evidences for transtensional tectonics
(Sociedad Geológica de España, 2003)Partial melting in the Évora Massif (Ossa-Morena Zone) occurred contemporaneously with non-coaxial deformation in a transcurrent regime. An example of this fact has been taken from studied partially melted biotite-sil ... -
Luminiscencia frente a quimismo elemental en inocerámidos (Bivalvia) de facies profunda (Formación de Plentzia, Santóniense del Arco Vasco). (Parte I)
(Sociedad Geológica de España, 2003)Inoceramid shells (four individuals) from deep facies sediments of the Plentzia Formation) (Santonian, Basque Arc) have been analysed to determine their elemental chemistry (Mg2*, Sr2*, Na+, Ba2*, Fe2* and Mn2*) using ... -
Organización interna de unidades de alta presión en dominios tectónicos profundos (Complejo de Cabo Ortegal, NO España)
(Sociedad Geológica de España, 2003)High-pressure volcanic-arc granulites, N-MORB eclogites and shallow crustal volcanosedimentary high-pressure gneiss units occur in the high-pressure metamorphic fold-nappes and ductile thrusts that make up the Cabo Ortegal ... -
El abanico imbricado de Valverde del Camino (parte meridional de la Zona Sudportuguesa, Huelva)
Mantero Cuajares, Macarena; Alonso Chaves, Francisco Manuel
; Azor, A. (Sociedad Geológica de España, 2003)
The South Portuguese Zone is a foreland affected by a thin-skinned tectonics characterized by SSW-vergent thrust-and-folds developed in Carboniferous times as a consequence of the Variscan collision. In the Valverde del ... -
Análisis estructural de los surcos periféricos del diapiro de Murguía (Alava, Cuenca Vasco-Cantábrica)
(Sociedad Geológica de España, 2003)Structural analysis of the eastern sector of the Murguia diapir permits to disclose and map a number of geological structures related to the middle to late Cretaceous evolution of the diapir. These structures, not described ... -
Respuesta de diversos tratamientos de conservación en la arenisca del Real Monasterio de Santa María de Sijena, Huesca
(Sociedad Geológica de España, 2003)The aim of this paper is to test the effectiveness of certain methods of consolidation in sandstones of different grades of damage. Three organic silicon compounds in different concentrations were applied by spraying. ... -
Ciclo de transgresión-regresión en los depósitos costeros de la Unidad de Olleros de Paredes Rubias (Albiense superior, Páramo de La Lora, Palencia)
(Sociedad Geológica de España, 2003)The Olleros de Paredes Rubias succesion was attributed to a transitional marine-continental environment. A detailed study of the lower part of that succesion has shown several subenvironments of the shore-zone (lagoon, ... -
Datos paleoceanográficos aportados por los foraminíferos de la sección de Barríka (Santoniense del Arco Vasco)
(Sociedad Geológica de España, 2003)Analyses carried out on benthonic foraminiferal assemblages of the Barrika section (Basque Arc) are part of a multidisciplinary research with the main subject of understanding the palaeoceanographic events that took place ... -
Conferencia. Rudistas: estrategias de crecimiento, período vital y respuesta diagenètica
(Sociedad Geológica de España, 2003)Quisiera que la publicación de esta conferencia sea un sentido homenaje a nuestro compañero Patxi Larrea Bilbao, no sólo por parte de quien escribe estas lineas, sino también de todos sus compañeros de la Sección de Geología ... -
Geocronologia del plutón de Campanario-La Haba (Badajoz) a partir del análisis de isótopos de Pb en circones y U-Th-Pbtota| en monacitas
(Sociedad Geológica de España, 2003)The Campanario-La Haba pluton is located to the north of the Los Pedroches batholith in the southern part of the Central-lberian Zone. The age of the emplacement had been established between 304 and 314 Ma using K-Ar and ... -
Período vital y ciclos de crecimiento en Praeradiolites ciryi e Hippurites quintanalomensis (Hippuritacea, Bivalvia, Cretácico Superior de Gredilla de Sedano, Norte de Burgos, España)
(Sociedad Geológica de España, 2003)Several specimens of Praeradiolites ciryi FLOQUET (1991) and Hippurites quintanalomensis FLOQUET (1991), taken from the Quintanaloma Formation sediments (Upper Campanian-Lower Maastrichtian) at Gredilla de Sedano section ... -
Un nuevo dinosaurio terópodo («Prodeinodon»sp.) en el Cretácico Inferior de La Cantalera (Teruel)
(Sociedad Geológica de España, 2003)We describe four theropod teeth from the Upper Hauterivian-Lowermost Barremian of La Cantalera (Teruel, Spain), characterized by the presence of denticles only in their distal edge, being the mesial one rounded. These two ... -
Interpretación geodinámica del metamorfismo de ultra-alta presión en las peridotitas de Ronda
(Sociedad Geológica de España, 2003)We repon the occurrence of several minerals representative of high to ultra-high pressure metamorphism in the Sierta Bermeja massif of the Ronda peridotites (Betic Cordilleras, southern Spain). Some of them, like graphite ... -
The calciclastic members of the Eocene Anotz Formation (Navarre, W Pyrenees): example of resedimentation processes in carbonate ramp slopes
(Sociedad Geológica de España, 2003)The four calciclastic members of the Lower-Middle Eocene Anotz Formation in the western Pyrenees, considered by some previous authors of shallow-marine origin because of their large size, massive appearance and abundant ... -
Timing of rodingitization at the Ronda peridotites (Betic Cordilleras, Spain)
(Sociedad Geológica de España, 2003)This work reports the timing of the rodingitization process of granitic dykes intrusive into the Ronda Peridotites. Representative fission-track ages on zircon and apatite from rodingitized dykes, in combination with cooling ... -
Estudio sedimentológico de la sucesión con nuevos niveles de vertebrados fósiles del Mioceno inferior de Lardero (La Rioja)
(Sociedad Geológica de España, 2003)In the Lardero continental outcrops (Ebro Basin) interesting fossil vertebrate layers have appeared that are included in the biozone Z of the Ramblian (MN2b-MN3). The sedimentary succession has been interpreted as an ... -
Estudio de la composición isotópica del Pb en galenas del distrito minero de Linares-La Carolina (Jaén, España)
(Sociedad Geológica de España, 2003)New lead Isotope results for twenty-four galenas of the Linares-La Carolina mining district (Jaén, Spain) are reported. While two.mineralization types, one near Linares (where filons with low Ag content crosscut the Linares ... -
Primera cita de un dinosaurio hadrosaurio en el Cretácico Superior del Prepirineo oriental (Peguera, provincia de Barcelona)
(Sociedad Geológica de España, 2003)A right distal femur of a small-sized ornithopod from the Late Cretaceous of the Barcelona province is described. It comes from the Maastrichtian sandstones of Peguera, near Berga, in the Pyrenean region of Bergueda ... -
A reappraisal of the position of Chron C25n in the Campo section (Huesca province, south-central Pyrenees)
(Sociedad Geológica de España, 2003)Upper Thanetian strata of the Campo section, in the southern Pyrenees, were assigned by previous authors to geomagnetic Chron C25r. Such attribution, however, is rendered obsolete by the discovery of Discoaster multiradiatus ... -
Mineralogía de arcillas y diagénesis en la Formación de Quintanaloma (Cretácico Superior, Norte de Burgos, España)
(Sociedad Geológica de España, 2003)The preliminary results of mineralogical analysis of 28 inner platform carbonate samples taken from the Quintanaloma Formation sediments (Upper Campanian-Lower Maastrichtian) at the Credilla de Sedano section (northern ...
