RT info:eu-repo/semantics/article
T1 Rare Earth element distribution on the Fuerteventura Basal Complex (Canary Islands, Spain): a geochemical and mineralogical approach
A1 Campeny, Marc
A1 Menéndez, Inmaculada
A1 Quevedo, Luis
A1 Yepes, Jorge
A1 Casillas, Ramón
A1 Ahijado, Agustina
A1 Méndez-Ramos, Jorge
A1 Mangas, José
AB The Fuerteventura Basal Complex comprisesOligocene and Miocene ultra-alkaline-carbonatitic magmaticpulses with outcrops that extend across kilometer-scale areasin some specific sectors of this oceanic island. Additionally,there is evidence of associated weathering materials thataffect these magmatic lithologies. These alkaline magmaticrocks (including trachytes, phonolites, syenites, melteigites,and ijolites), carbonatites, and their associated weatheringproducts underwent a preliminary evaluation of rare Earth element(REE) contents based on mineralogical and geochemicalstudies. REE concentrations in carbonatites of about10 300 ppm REY (REEs plus yttrium) have been detectedin volumes comparable to other locations hosting significantdeposits of these critical elements worldwide. Conversely, alkalinemagmatic rocks and the resulting weathering productsdisplay limited REE contents. Notably, REEs in carbonatitesare associated with primary accessory phases such as REEbearingpyrochlore and britholite and secondary monazite.The results obtained in the carbonatites of Fuerteventura underscorethe interest in studying the concentrations of criticalelements, such as REEs, within a non-conventional geologicalsetting like oceanic islands. However, due to intricatestructural attributes, the irregular distribution of these mineralizations,and possible land use and environmental constraints,additional future detailed investigations are imperativeto ascertain the real potential of these REE concentrations.
YR 2024
FD 2024
LK http://riull.ull.es/xmlui/handle/915/38018
UL http://riull.ull.es/xmlui/handle/915/38018
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 23-nov-2024