RT Journal Article
T1 Relaciones de campo y geoquímica de las carbonatitas de Esquinzo-Agua Salada, NW de Fuerteventura, Islas Canarias
T1 Field relationships and geochemistry of the Esquinzo-Agua Salada carbonatites, NW Fuerteventura, Canary Islands
A1 Ignacio, Cristina de
A1 Muñoz, Mercedes
A1 Sagredo, J.
AB Carbonatites are rather uncommon rocks, the origin of which still stands a subject of debate, especiallyregarding if they crystallize from primary carbonatitic melts from the mantle, or if they are generated, bysome magmatic differentiation process, from an alkaline-silicate parent magma. The Esquinzo-Agua Saladacarbonatites are associated, both in space and time, to an ensemble of alkaline silicate lithologies comprising,from ultramafic-mafic (perovskite-clinopyroxenites-ijolitic rocks) to felsic (nepheline-syenites) types. In thiswork, field relationships between both groups of lithologies as well as the main geochemical characteristicsof the carbonatites, which are compared to those of the alkaline silicate rocks, are presented. Both aspectsseem to indicate an origin for the carbonatites by liquid immiscibility, from a CO2-rich, alkaline silicateparental magma
YR 2008
FD 2008
LK http://hdl.handle.net/10272/8288
UL http://hdl.handle.net/10272/8288
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026