Universitat de Barcelona
Now showing items 21-40 of 45
Donada l’alta sensibilitat de la regió central de la Mediterrània occidental a la variabilitat climàtica, s’han reconstruït les condicions de la mar superficials i profundes així com de les atmosfèriques pels darrers 2.700 ...
The widespread extensional deformation that took place during Jurassic to Cretaceous times in Western Europe and the North Atlantic margin resulted in the formation of several rift systems. Some of the resulting basins ...
The objective of this thesis is to study the first-order dynamics of subduction systems characterized by opposite dip polarity in adjacent plate segments. The absence of previous studies analyzing the geodynamic evolution ...
This study combines cave speleothems and marine sediments to gain an insight into the climate variability of the Iberian Peninsula (IP) and its surrounding seas associated with previous warm interglacial periods. In ...
L’estudi de la concentració i la distribució de metalls i metal·loides en ambients costaners ha guanyat rellevància durant els darrers quaranta anys, principalment a conseqüència de la creixent preocupació per llurs ...
The closure of the Ligurian-Tethys Ocean, opened during Jurassic and consisting of highly segmented margins in between Africa and Iberia, has produced the Alboran and Algerian basins in the Western Mediterranean through ...
This thesis aims at improving the current understanding of the geodynamic controls on tectonic deformation during plate collision, using the Cenozoic evolution of Iberia as a case scenario. Despite the vast efforts during ...
The Eocene South-Pyrenean foreland basin provides a continuum of outcrops representing a Source to Sink sediment routing system from subaerial canyons to deep marine environments. On this context, the specific objective ...
La Tesi Doctoral inclou l’estudi de vertebrats fòssils post-messinians de les Illes Balears fins ara desconeguts. La investigació s’ha centrat principalment en el registre fòssil de vertebrats del Pliocè basal obtingut a ...
This thesis uses different variants of geomechanical modelling approaches to investigate stress, strain and geometry distribution and evolution through time of the Tarfaya salt basin, located on the West African coast. ...
The main objectives of this PhD thesis are the identification of the snow avalanche release areas and the snow avalanche flow regime characterization with the use of seismic data. We aim to search for new methods for ...
The Eastern Betics Shear Zone (EBSZ) is one of the most active fault systems in SE Spain. It has caused damaging earthquakes in historical times, including the 2011 Lorca earthquake, which evidenced that the regional hazard ...
This thesis is focused on the taxonomical, biogeographical, palaeoecological and biostratigraphical characterization of the Barremian charophytes of the Maestrat Basin (Eastern Iberian Chain, Spain). Thirty-four charophyte ...
Aquesta tesi té per objectiu avançar en el coneixement de la dinàmica de les allaus, i en concret, de les allaus majors, al Pirineu de Catalunya i, per extensió, als Pirineus, tot entenent per allau major l’allau la mida ...
This Thesis aims to investigate the contribution of the deep-sea trawling activities, besides that of natural processes, to the sediment dynamics in different continental slope areas, particularly in the NW Mediterranean ...
[eng] The Mediterranean region is very sensitive to modern climate variability. Located in a temperate subtropical climatic zone and surrounded almost entirely by large continental masses, the Mediterranean region climate ...
In recent years, photogrammetric models have become a widely used tool in the field of geosciences thanks to their ability to reproduce natural surfaces. As an alternative to other systems such as LiDAR (Light Detection ...
[eng] The Hawaz Formation is a Middle Ordovician siliciclastic succession which extends for hundreds of kilometres across North Africa. This thesis uses a subsurface-based approach, mainly utilizing well data, complemented ...
[spa] La Formación Caspe corresponde a las facies fluviales de los depósitos de un abanico fluvial de edad oligo-miocena, referido en la literatura como Sistema aluvial del Guadalope-Matarranya. Dicho sistema tuvo su área ...
[eng] Although there is certain consensus on the Middle Jurassic to Present evolution of the Central Atlantic, the Early Jurassic rift to drift transition stage is still under discussion. Through the interpretation of ...
