Universitat de Barcelona
Ara mostrant els elements 1-20 de 26
La presente tesis tiene como objetivos el desarrollo, aplicación, calibración y validación del uso de información geofísica para la gestión, la caracterización y el estudio de la vulnerabilidad a la contaminación de los ...
1. Se ha realizado el estudio de los minerales pesados de los materiales detríticos del Mioceno de la fosa neógena del Vallès-Penedès, así como, y con carácter comparativo, los del Holoceno más reciente que aportan los ...
En el Sáhara Occidental hay dos unidades principales: la cobertera sedimentaria del Fanerozoico y un basamento cristalino que forma parte del cratón del África Occidental, constituido desde el Paleoarcaico al Paleoproterozoico. A ...
Las rocas del Paleozoico del Priorat Central (Cadena Costera Catalana, NE de la Península Ibérica) han sido sometidas a un metamorfismo regional hercínico de grado muy bajo que alcanzó el límite entre la zona diagenética ...
Angola is currently the 8th largest diamond producer in the world, but for historical reasons the subcontinental lithospheric mantle (SCLM) in the Congo-Kasai craton is still poorly studied. However, an understanding of ...
The Maimón and Los Ranchos formations in Central and Oriental Cordilleras, Dominican Republic, Hispaniola Island, are acknowledged to be representative of the most primitive tholeiitic magmatic series recorded in the Greater ...
The complexity of the interplay between tectonics and sedimentation increases when salt tectonics is involved because of the ductility of salt and its ability to flow. Discrimination between extensional tectonics and ...
En Angola afloran complejos carbonatíticos en todos los niveles de emplazamiento tanto plutónico, hipoabisal como volcánico. Recientemente, se han caracterizado en detalle algunos de estos complejos debido a las mineralizaciones ...
This PhD is about the serpentinitic matrix, mafic crust and exotic ultramafic blocks of the Villa Clara serpentinitic mélange (VCSM) in central Cuba in an attempt to evaluate the evolution of oceanic lithosphere. Each of ...
Sewage sludge is a high volume, potentially toxic waste generated during the decontamination process of wastewater. Improved solutions for waste disposal require its conversion into an end product or at least a raw material ...
Carbon tetrachloride (CT) and chloroform (CF) are chlorinated methanes (CMs) which have been released to the environment for decades owing to scarce waste management. Since they are dense non-aqueous phase liquids (DNAPLs), ...
Ti-rich minerals occur in xenoliths of metasomatized mantle peridotites, MARID and PIC. Xenocrysts produced by disaggregation during the intrusion have equivalent compositions. Early crystallization in the first intrusive ...
The south eastern Pyrenees allowed us to study the relationships between fluid flow and deformation in a complete section of a well-preserved fold and thrust belt. Furthermore, this study enables us to decipher the main ...
Rare earth elements (REE) are known as the lanthanide series (La-Lu) plus yttrium (Y) and scandium (Sc). REE are essential materials for modern industries and especially for green technologies (wind turbines, batteries, ...
The worldwide persistence of nitrate (NO -) in groundwater is worrying since this compound has been related to human illnesses and to eutrophication of aquatic ecosystems. The main sources of pollution are linked to intensive ...
El volcanismo oligo-mioceno del Sulcis, SO de Cerdeña (Italia) presenta la particularidad de contener rocas peralcalinas y alcalinas de un ambiente geodinámico anorogénico posterior a la actividad orogénica relacionada con ...
El Complex de Susqueda constitueix el major aflorament de roques màfiques i ultramàfiques associades a granitoides hercinians de la Serralada Costanera Catalana. Des dels inicis del segle passat, les roques màfiques de ...
The discovery of ultra-high pressure (UHP), super-reduced (SuR), and continental crust-derived minerals in ophiolitic chromitites worldwide challenged the previous hypotheses for chromitite formation and motivated the ...
This PhD thesis examines the fracture-fluid interactions across different compressional structures affecting both Paleozoic basement and Mesozoic-Cenozoic cover lithologies in the Southern Pyrenees in order to investigate ...
The finding of a suite of unusual minerals associated to ophiolitic chromitites questions traditional model for the formation of these rocks. These findings include minerals typically considered indicators of ultra-high ...
