Mostrando ítems 20-24 de 24
Bambi, Aurora Cuaiela Joao Mateus (Fecha de defensa: 2016-01-26)
Se han seleccionado tres carbonatitas de la estructura tectónica de Lucapa en Angola representativas de diferentes niveles de emplazamiento de los magmas: plutónico (Tchivira), subvolcánico (Bonga) y volcánico (Catanda). Los ...
Aiglsperger, Thomas Hans (Fecha de defensa: 2015-12-17)
Ni laterites are considered worthy targets for critical metals (CM) exploration as rare earth elements (REE), Sc and platinum group elements (PGE) can be concentrated during weathering as a result of residual and secondary ...
Puig Caminal, Roger (Fecha de defensa: 2014-05-19)
In the last decades, anthropogenic inputs of nitrogen to groundwater have dramatically increased, and they nowadays represent one of the most important water resources concerns as NO3-N has become the most ubiquitous ...
Carrey Labarta, Raúl (Fecha de defensa: 2014-05-05)
One of the main problems of diffused groundwater contamination is produced by nitrate (NO3‾). NO3‾ pollution is linked with fertilizer application, manure management and wastewater. Many areas of Spain have NO3‾ concentration ...
Bayés-García, Laura (Fecha de defensa: 2013-07-10)
Esta tesis se basa fundamentalmente en el estudio in situ del polimorfismo de triacilgliceroles (TAGs) mayoritarios de aceites y grasas alimentarios, la determinación del comportamiento de fases de algunas de sus mezclas ...