English
español
Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/3034COMPARTIR / IMPACTO:
| Estadísticas |
 SHARE
 MendeleyBASE
|
|
| Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | ||
| Título: | Petrogénesis de los basaltos alcalinos de la Garrotxa, región volcánica del NE de España |
| Autor: | López Ruiz, J.  ; Rodríguez Badiola, Eduardo ; Cebriá Gómez, J. M. |
| Palabras clave: | Upper Mantle Mediterranean volcanism Leucite-basanites Nepheline-basanites Olivine basalts Partial melting Fractional crystallization |
| Fecha de publicación: | dic-1986 |
| Editor: | Sociedad Geológica de España |
| Citación: | Geogaceta, Nº1, 28-31 |
| Resumen: | Compositional trends and trace elements abundance in leucite-basanites, nepheline-basanites and olivíne basalts from la Garrotxa (NE Spain region), suggest that the parental magma were originated from an homogeneous lherzolite source, strongly enriched in incompatible elements (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 ol + cpx + mg, in proportion that range between 75-40%, 55-10% and 15-0 %, respectively. |
| URI: | http://hdl.handle.net/10261/3034 |
| ISSN: | 0213-683X |
| Aparece en las colecciones: | (MNCN) Artículos |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| Petrogénesis Basaltos NE de España.pdf | 6,99 MB | Adobe PDF |  Visualizar/Abrir |
Mostrar el registro completo
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.