Departament de Mineralogia: Enviaments recents
Ara mostrant els elements 1-20 de 83
Exploración de elementos de tierras raras en materiales geológicos subaéreos y submarinos de las Islas Canarias: estado de la cuestión
La exploración de mineralizaciones de tierras raras (TR) en islas volcánicas y montes submarinos del archipiélago canario se ha llevado a cabo en tres tipos de materiales geológicos: (1) rocas ígneas félsicas (traquitas, ...
Petrogenesis of the alkaline lamprophyre cluster between Molí d’en Ponç and Collet de la Cidereda (eastern Catalonian Coastal Ranges, NE Iberia)
This work focuses on the cretaceous camptonite cluster between Molí d’en Ponç and Collet de la Cidereda, eastern Montseny massif from the Catalan Coastal Ranges (NE Iberian Peninsula). These post-orogenic lamprophyres (~ 79 ...
Com fer un article divulgatiu: integrant coneixements i desenvolupant competències
Activitat dissenyada per proporcionar als estudiants uns fonaments clars per escriure bones memòries, informes o articles en el seu futur professional. Neix de la necessitat de millorar la seva competència comunicativa ...
La recerca a les col·leccions geològiques i paleontològiques del Museu de Ciències Naturals de Barcelona (MCNB)
La recerca desenvolupada als museus de ciències naturals és fonamental tant per a l'avanç del coneixement científic com per a destacar la importància de conservar el patrimoni i fomentar la consciència col·lectiva de ...
PGE-Ni-Cu sulphide segregation by interaction of basaltic melt and peridotite xenoliths of the Catalan Volcanic Zone (Spain) [accepted version]
Spinel lherzolite xenoliths from the Sant Corneli volcano (Catalan Volcanic Zone, NE Spain) carry the geochemical imprint of melt/rock reaction events that have affected the subcontinental lithospheric mantle (SCLM) beneath ...
El gabinet de la família Salvador
El gabinet Salvador és un dels pocs gabinets de curiositats europeus que ha conservat en un mateix espai la biblioteca (amb més de 1500 volums), els espècimens naturals (9237 unitats de registre, entre els quals hi ha ...
Rare earth element distribution on the Fuerteventura basal complex (Canary islands, Spain): a geochemical and mineralogical approach
The Fuerteventura Basal Complex comprises Oligocene and Miocene ultra-alkaline-carbonatitic magmatic pulses with outcrops that extend across kilometer-scale areas in some specific sectors of this oceanic island. Additionally, ...
Com trobar elements rars de la taula periòdica a Catalunya?
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 ...
Synchrotron XAS study of Mn and Fe in Chinese blue-and-white Ming porcelains from the second half of the 15th century
The XAS analysis of a blue-and-white Ming porcelain's decorations has been used to elucidate the porcelain's production technology. The porcelain exhibits the typical blue decorations with dark spots that are constituted ...
MAP2XANES: a Jupyter interactive notebook for elemental mapping and XANES speciation
MAP2XANES is an intuitive Jupyter notebook that automatizes the analysis of synchrotron X-ray fluorescence imaging and X-ray absorption spectroscopy for the characterization of complex and heterogeneous samples. The ...
As and S speciation in a submarine sulfide mine tailings deposit and its environmental significance: the study case of Portmán Bay (SE Spain)
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 ...
The ephemeral fumarolic mineralization of the 2021 Tajogaite volcanic eruption (La Palma, Canary Islands, Spain)
The present work aims to characterize the ephemeral mineral assemblage related to the fumarolic fields of the Tajogaite volcano, formed in 2021 in La Palma Island (Canary Islands, Spain). A set of 73 samples was obtained ...
Sm-Nd isotope whole rock and garnet from the Southwestern Grenvillian Oaxacan Complex, Mexico: a review of garnet closure temperature and structural implications
The Oaxacan Complex represents the largest outcrop of late Mesoproterozoic age, granulite-facies metamorphic rocks in Mexico. The southwestern Oaxacan Complex was studied using the Sm-Nd isotopic system in whole-rocks and ...
The Traspena meteorite: heliocentric orbit, atmospheric trajectory, strewn field, and petrography of a new L5 ordinary chondrite
The Traspena meteorite fell on 2021 January 18 about 20 km south-east of the city of Lugo (Galiza, Spain), shortly after a huge and bright fireball crossed the sky for 4.84 s. Astrometric measurements obtained from the ...
Petrology, metallogeny and U-Pb geochronology of the paleoproterozoic mafic-ultramafic Hamutenha intrusion, Angolan Shield
The Hamutenha intrusion (Huíla province, SW Angola) is a 3-km-long elongated magmatic body defined by a set of two intrusive units. The northern unit is formed by alternating bands of dunites and olivine gabbros, while the ...
Co-Mn mineralisations in the ni laterite deposits of Loma Caribe (Dominican Republic) and Loma de Hierro (Venezuela)
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 ...
La piedra que cayó del cielo: el redescubrimiento del meteorito de Barcelona (1704)
El día de Navidad de 1704, en plena Guerra de Sucesión Española, un meteorito cayó en las inmediaciones de Terrassa (Barcelona). El bólido fue visto desde diferentes zonas de Cataluña y la caída se referencia en multitud ...
