Departament de Mineralogia: Enviaments recents
Ara mostrant els elements 41-60 de 83
Web “Geologia urbana de Badalona”: les seves aplicacions a l’aula
La web “Geologia Urbana de Badalona” planteja l’estudi de les roques i els seus elements constituents mitjançant recorreguts urbans i tenint com a objecte els materials geològics ornamentals emprats en construcció. Aquesta ...
Correction of secondary fluorescence across phase boundaries in electron probe microanalysis of mineral inclusions
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 meteorite of Barcelona (1704): history, discovery, and classification
On Christmas Day 1704, at 17 h (UT), a meteorite fell in Terrassa (about 25 km NW of Barcelona). The meteorite fall was seen and heard by many people over an area of several hundred kilometers and it was recorded in several ...
Machine learning algorithms applied to Raman spectra for the identification of variscite originating from the mining complex of Gavà
Variscite is an aluminium phosphate mineral widely used as a gemstone in antiquity. Knowledge of the ancient trade in variscite has important implications on the historical appreciation of the commercial and migratory ...
Quantitative analysis and valorisation of Kaolinite from Caluquembe (Angola) by x-ray powder diffraction and thermogravimetric tecniques
Kaolin deposits has been for long exploited in several regions of Angola, and some of the most important are produced by weathering of anorthositic rocks from the Cunene complex. However, a systematic research has not been ...
REE exploration in carbonatites, alkaline magmatic rocks and corresponding paleosols at intraplate oceanic islands (Gran Canaria and Fuerteventura, Canary Islands, Spain)
A representative sampling of carbonatites, alkaline felsic igneous rocks and corresponding paleosols was carried out on Gran Canaria and Fuerteventura (Canary Islands, Spain) in order to assess the geochemical composition, ...
Sandstone-hosted uranium deposits as a possible source for critical elements: the Eureka mine case, Castell-Estaó, Catalonia
The Eureka deposit in Castell-estaó in the Catalan Pyrenees is a Cu–U–V deposit, hosted by Triassic red-bed sandstones, and classified here as a low-temperature, sandstone-hosted stratabound metamorphite U deposit. The ...
