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dc.contributor.authorLópez Ruiz, José
dc.contributor.authorRodríguez Badiola, E.
dc.contributor.authorCebriá Gómez, J. M.
dc.description.abstractCompositional trends and trace elements abundance in leucite-basanites, nepheline basanites and olivine basalts from La Garrotxa (NE Spain region), suggest that the parental magma were originated from an homogeneous lherzolite source, strongly enriched in incompatible elemenb (between x15-x4 the chondritic values for the highly incompatible elements and between x5-x2 for the moderately incompatible), in which neither kaersutite, phlogopite or apatite remained as residual phases. The leucite-basanite magmas were derived by lower degrees of melting (7-10%) than the basanite s.s. and the olivine basalt magmas (13-15%). Except some primary leucite-basanites, the lavas from La Garrotxa underwent a moderate fractionation (—20%) of 01 + cpx + mg, in proportion that range between 75-40%, 55-10% and 15-0%, respectivelyes_ES
dc.publisherSociedad Geológica de Españaes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherMediterranean volcanismes_ES
dc.subject.otherOlivine basaltses_ES
dc.subject.otherPartial meltinges_ES
dc.subject.otherFractional crystallizationes_ES
dc.subject.otherUpper Mantlees_ES
dc.titlePetrogénesis de los basaltos alcalinos de La Garrotxa, región volcánica del NE de Españaes_ES

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España

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