Thesis Collection
Last Deposit
Browsing by Subject "Pyrenees"
Now showing items 1-20 of 66
-
Análisis secuencial y correlación de los abanicos aluviales de Peña Oroel y la Sierra de Cancias. (Eoceno superior. Cuenca Surpirenaica Central)
(Sociedad Geológica de España, 1996)In the Cuarga Syndfne (jaca Basin), the Sierra de Cancias conglomerates, has been placed traditionally In a lower stratigraphic position than Peña Oroel conglomerates. However; a detai/led geological mapi, based in the ... -
Aportaciones para la interpretación de Zoophycos
(Sociedad Geológica de España, 1993)Recent discoveries of well-preserved Zoophycos specimens in Eocene turbidite sediments W of Jaca (Southern Pyrenees), have permitted the confirmation of polemical data infered by Kotake (1989) concerning to the behaviour ... -
Bauxitas kârsticas de la Sierra de Boada (Sierras Marginales surpirenaicas, Alös de Balaguer, Lleida)
(Sociedad Geológica de España, 1994)One of the most important bauxite site in the Spanish Pyrenees is the Sierra de Boada which is analyzed in this note. The bauxites are located between Middle Jurassic dolostones and Upper Cretaceous sandstones. They are ... -
Bioestratigrafia (graptolitos) del limite Ordovicico-Silurico en los Pirineos orientales (curso alto del rio Segre, Lleida)
(Sociedad Geológica de España, 2017)Se presenta una sección de pizarras negras graptolíticas donde, por vez primera en España, se registra de manera continua el límite Ordovícico-Silúrico. El perfil se localiza al este de Estana (Lleida), en la Zona Axial ... -
Bioestratigrafía con foraminíferos planctónicos y nanoplancton calcáreo de la sección de Campo (paraestratotipo del Ilerdiense)
(Sociedad Geológica de España, 1989)A biostratigraphic study of Campo section (Ilerdian parastratotype) has been carried out by means of planktonic foraminifera and calcareous nannoplankton. The most standard and recent biozonations for Lower Eocene (Ilerdian ... -
Bioestratigrafía de carofitas del Eoceno superior y Oligoceno inferior de la Cuenca del Ebro oriental
(Sociedad Geológica de España, 2016)The Eastern Ebro Basin constitutes a reference area for the study of Palaeogene charophyte biostratigraphy worldwide. A synthesis and an updated version of a number of previous biozonations is presented herein. Six ... -
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 ... -
Calderas volcánicas pasivas: un ejemplo en el Estefaniense del Pirineo Catalán
(Sociedad Geológica de España, 1987)A model of volcanic cauldron (pasive volcanic cauldrons) is proposed for some LateHercynian basins of the Catalan Pyrenees. This volcanic structure is defined as a sedimentary basin in which the subsidence processes are ... -
Characteristics of cryogenic carbonates in a Pyrenean ice cave (northern Spain)
(Sociedad Geológica de España, 2015)Se aportan datos micromorfológicos, isotópicos y cronológicos de carbonatos criogénicos CCC) de la cueva helada Sarrios-6, situada a 2780 m s.n.m. en el macizo de Monte Perdido (Pirineo central). Es el primer estudio de ... -
Los ciclos sedimentarios del Eoceno medio y superior en el sector NE de la depresión del Ebro (zona de Bergas-Vic). Caracterización de sus Iímites
(Sociedad Geológica de España, 1991)In the middle and upper Eocene strata of the South Pyrenean foreland basin, three sedimentary cicles have been distinguished. These cycles are bounded by angular uncorfirmities, each cycle being related to the development ... -
Circulación de fluidos en fracturas en el miembro superior de la Fm. Armàncies (Eoceno, Pirineo oriental)
(Sociedad Geológica de España, 2005)The presence of oil shows associated with fractures provides a significant opportunity to unravel the type, origin and evolution of fluids involved in fractures cementation and their relationship to oil migration. Two stages ... -
Correlation of hercynian units of the Iberian massif and southeastern France
(Sociedad Geológica de España, 1996)The Olio de sapo anliform in the northwest Iberian Massif is made up of superposed allochthonous units of Paleozoic metasediments and Ordovician orthogneisses, similar to gneissic domes in the eastern Pyrenees and in the ... -
El Cretácico superior en la terminación occidental de la Zona Axial Pirenaica
(Sociedad Geológica de España, 1990)Four depositional sequences have been recognized in the Upper Cretaceous of the western Axial Zone (Pyrenees). The lower two ones are made up of shelf carbonates, whereas the upper ones represent terrigenous shelf and basin ... -
Datos estratigráficos y paleontológicos de la sucesión devónica del área del río Baliera (Zona Axial, Pirineos centrales españoles)
(Sociedad Geológica de España, 1989)In the Baliera river area, situated in the Axial Zone of the Central Pyrenees, the Mañanet Limestone which belongs to Sierra Negra subfacies, crops out. The paleontological contents of the limestone has allowed its datation. ... -
Datos magnetotectónicos del Eoceno de la Cuenca de Jaca-Pamplona: resultados iniciales
(Sociedad Geológica de España, 1996)This paper presents the first magnetotectonic data of the central fringe of the Jaca-Pamplona Basin. These data have been obtained from 16 sites located in marls, tirbidites and limestones of Eocene age. In the central and ... -
Desarrollo simultáneo de pliegues, esquistosidad y cabalgamientos en el Eoceno inferior de Isaba (Valle del Roncal, Pirineo navarro)
(2006)Geometric and kinematic analysis of Pyrenean folds, cleavage and thrusts is carried out in several exceptional outcrops of the Eocene flysch at Isaba (Navarra, Spain). Distribution, orientation and cross-cut relationshi ... -
Determinación de la deformación finita en la vertiente sur del Pirineo oriental a lo largo de la transversal del rio Ter
(Sociedad Geológica de España, 1996)Strain determinations in the Paleogene rocks of the Ter-Freser section give values 1,1 <Y/Z<1,95 assuming plane strain conditions. Subhorizontal materials of the southern part of the Ebro basin exhibit a remarkable degree ... -
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 ... -
El domo gneísico del Freser (Pirineo Oriental): ¿zócalo precámbrico, intrusión ordovícica o granito herciniano?
(Sociedad Geológica de España, 2004)The Freser gneissic dome (Núria massif) has been considered either an outcrop of the Precambrian basement or a pre-Hercynian laccolith of Ordovician age. New field observations strongly suggest that the lower Núria «gneises» ... -
El límite Cretácico/Terciario con foraminíferos planctónicos en Osinaga y Músquiz (Navarra, Pirineos)
(Sociedad Geológica de España, 1996)High resolution planktic foraminiferal biostratigraphy across the K/T boundary at Osinaga and Musquiz (Navarre, Pyrenees) allows us to recognise a small hiatus located just at the boundary. The hiatus affects the uppermost ...
