Institucions culturals
Ara mostrant els elements 1-20 de 64
Large kaolin deposits developed by weathering on Precambrian granitic rocks have been discovered in the Caluquembe area, Huíla province, Angola. To determine accuracy of analysis and to evaluate the samples kaolinite grade, ...
The dumping of an estimated amount of 57 million tons of hazardous sulfide mine waste from 1957 to 1990 into Portmán's Bay (SE Spain) caused one of the most severe cases of persistent anthropogenic impact in Europe's costal ...
Created in 1990, the Micromount collection of the Natural History Museum of Barcelona (MCNB) currently (May 2013) contains nearly 10.000 registered samples, including near 900 well identified mineral species and an interesting ...
El presente trabajo refiere la evolución cronológica de la colección de gemas facetadas transparentes del Museo de Geología de Barcelona y cataloga sus ejemplares distribuyéndolos en cuatro apartados: Grupo de la Sílice, ...
El presente trabajo refiere la evolución cronológica de la colección de meteoritos del Museo de Geología de Barcelona (MGB), y cataloga los ejemplares de dicha colección, distribuyéndolos en cuatro apartados: Meteoritos ...
Cobalt demand is increasing due to its key role in the transition to clean energies. Although the main Co ores are the sediment-hosted stratiform copper deposits of the Democratic Republic of the Congo, Co is also a ...
Hi ha molts mecanismes de concentració d’elements químics a partir de la seva dispersió ge oquímica per tal de formar dipòsits minerals d’interès econòmic. La diversitat de processos geològics que han configurat el subsòl ...
La vitrina de les sals de Cardona és un mobiliari dissenyat i construït el 1921 per Francesc Pardillo. Localitzada a l’edifici del Museu Martorell (Museu de Ciències Naturals de Barcelona), exposa i preserva una col·lecció ...
One of the limiting factors for the analysis of minor elements in multiphase materials by electron probe microanalysis is the effect of secondary fluorescence (SF), which is not accounted for by matrix corrections. Although ...
The essential role of Critical Elements (CE) in 21st century economy has led to an increasing demand of these metals and promotes the exploration of non-conventional deposits such as weathering profiles. The present work ...
Gran Canaria is a hotspot-derived, intraplate, oceanic island, comprising a variety of alkaline felsic magmatic rocks (i.e. phonolites, trachytes, rhyolites and syenites). These rocks are enriched in rare-earth elements ...
