000165807 001__ 165807
000165807 005__ 20260114135812.0
000165807 0247_ $$2doi$$a10.1093/petrology/egu033
000165807 0248_ $$2sideral$$a86228
000165807 037__ $$aART-2014-86228
000165807 041__ $$aeng
000165807 100__ $$aUbide, Teresa
000165807 245__ $$aThe relevance of crystal transfer on magma mixing processes: a case study in the Maladeta Plutonic Complex (Pyrenees, Spain)
000165807 260__ $$c2014
000165807 5203_ $$aTwo composite dykes containing abundant mafic enclaves within a felsic host crop out in the Maladeta Plutonic Complex, Pyrenees, Spain. Field, petrographic and geochemical criteria reveal mixing between gabbroic and aplitic magmas, giving rise to a variety of hybrid compositions. The rocks contain spongy plagioclase, quartz ocelli and amphibole–biotite clots that are interpreted as early crystals destabilized by reaction with the hybrid melts. Spongy plagioclase and quartz ocelli were mechanically transferred from the felsic to the mafic magma, whereas amphibole–biotite clots are former pyroxene crystals from the mafic magma. Multivariate statistics (principal component analysis) have been used to examine variations in the mineral trace element compositions, which are best explained by the crystal transfer process. This study shows that crystal transfer represents a mixing mechanism that can overcome some of the physical limitations of interaction between rheologically contrasting magmas and explain deviations of the hybrid compositions from the theoretical mixed chemical composition. In particular, hybrid whole-rock compositions show non-linear correlations in inter-element variation diagrams for elements that are enriched or depleted in preferentially transferred crystals. This effect has been quantified by extending magma mixing modelling to include crystal transfer. The composite dykes studied could be regarded as scale models of the behaviour of larger-scale magmatic systems, so this investigation has important implications for interpreting the petrogenesis of igneous suites by magma mixing.
000165807 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CGL2008-06098-BTE
000165807 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000165807 590__ $$a4.424$$b2014
000165807 591__ $$aGEOCHEMISTRY & GEOPHYSICS$$b8 / 79 = 0.101$$c2014$$dQ1$$eT1
000165807 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165807 700__ $$0(orcid)0000-0002-2745-0357$$aGalé, Carlos$$uUniversidad de Zaragoza
000165807 700__ $$aLarrea, Patricia
000165807 700__ $$aArranz, Enrique
000165807 700__ $$0(orcid)0000-0002-3609-7380$$aLago, Marceliano$$uUniversidad de Zaragoza
000165807 700__ $$aTierz, Pablo
000165807 7102_ $$12000$$2685$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Petrología y Geoquímica
000165807 773__ $$g55, 8 (2014), 1535-1559$$pJ. Petrol.$$tJOURNAL OF PETROLOGY$$x0022-3530
000165807 8564_ $$s4067331$$uhttps://zaguan.unizar.es/record/165807/files/texto_completo.pdf$$yVersión publicada
000165807 8564_ $$s2467644$$uhttps://zaguan.unizar.es/record/165807/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165807 909CO $$ooai:zaguan.unizar.es:165807$$particulos$$pdriver
000165807 951__ $$a2026-01-14-12:46:11
000165807 980__ $$aARTICLE