Mostrando ítems 1-20 de 26
Díaz Acha, Yael (Fecha de defensa: 2022-11-28)
[spa] El municipio de Gavà (Cataluña) ha sido históricamente rico en recursos minerales, los cuales se han explotado desde hace más de 6.000 años. En este sentido, son especialmente destacables el caso de los minerales de ...
Sun, Xiaolong (Fecha de defensa: 2021-10-15)
Carbon capture and storage (CCS) has been proposed as a potential technology to mitigate climate change. However, there is currently a huge gap between the global CCS deployment and that which will be ultimately required. ...
Pujol Solà, Núria (Fecha de defensa: 2021-06-30)
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 ...
Valenzuela García, Sergio (Fecha de defensa: 2016-09-29)
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 ...
Carrazana Di Lucia, Ariana (Fecha de defensa: 2020-11-19)
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 ...
Esteve i Girbés, Sergi (Fecha de defensa: 2021-03-18)
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 ...
Nayem, Saleh Lehbib (Fecha de defensa: 2016-09-28)
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 ...
Amores Casals, Sandra (Fecha de defensa: 2017-12-15)
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 ...
Castillo i Oliver, Montgarri (Fecha de defensa: 2016-09-30)
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 ...
Muñoz López, José Daniel (Fecha de defensa: 2021-09-23)
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 ...
Farré de Pablo, Júlia (Fecha de defensa: 2021-10-08)
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 ...
Lozano Letellier, Alba (Fecha de defensa: 2019-11-26)
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, ...
Valdivielso Mijangos, Sonia (Fecha de defensa: 2022-07-19)
The availability of water resources is increasingly limited worldwide. Therefore, optimal and sustainable management is necessary to ensure a balance between ecosystems and human rights and activities. In the arid Central ...
Esteve Fernández, Jaime (Fecha de defensa: 2016-09-28)
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 ...
Tarragó Aymerich, Mariona (Fecha de defensa: 2018-06-29)
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 ...
Moragas Rodriguez, Mar (Fecha de defensa: 2017-06-12)
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 ...
Margalef Marti, Rosanna (Fecha de defensa: 2020-02-28)
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 ...
Alex Tiewin, Abu (Fecha de defensa: 2024-05-10)
[eng] Groundwater pollution poses a significant global environmental threat, mainly attributed to the oxidation of excess nitrogen during fertilization in aerobic conditions. The widespread occurrence of elevated nitrate ...
Xu, Jingyao (Fecha de defensa: 2019-04-26)
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 ...
Butjosa Molines, Lidia (Fecha de defensa: 2018-01-12)
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 ...