| dc.creator |
López Ruiz, J. |
|
| dc.creator |
Rodríguez Badiola, Eduardo |
|
| dc.creator |
Cebriá Gómez, J. M. |
|
| dc.date |
2008-02-24T13:20:36Z |
|
| dc.date |
2008-02-24T13:20:36Z |
|
| dc.date |
1986-12 |
|
| dc.date.accessioned |
2017-01-31T01:00:20Z |
|
| dc.date.available |
2017-01-31T01:00:20Z |
|
| dc.identifier |
Geogaceta, Nº1, 28-31 |
|
| dc.identifier |
0213-683X |
|
| dc.identifier |
http://hdl.handle.net/10261/3034 |
|
| dc.identifier.uri |
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3034 |
|
| dc.description |
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. |
|
| dc.description |
Este trabajo forma parte del Proyecto de Investigación «El volcanismo del Neógeno-Cuaternario del Borde mediterráneo Ibérico: implicaciones sobre la naturaleza del Manto superior y tectónica asociada», subvencionado por la CAICYT |
|
| dc.description |
Peer reviewed |
|
| dc.format |
7162841 bytes |
|
| dc.format |
application/pdf |
|
| dc.language |
spa |
|
| dc.publisher |
Sociedad Geológica de España |
|
| dc.rights |
openAccess |
|
| dc.subject |
Upper Mantle |
|
| dc.subject |
Mediterranean volcanism |
|
| dc.subject |
Leucite-basanites |
|
| dc.subject |
Nepheline-basanites |
|
| dc.subject |
Olivine basalts |
|
| dc.subject |
Partial melting |
|
| dc.subject |
Fractional crystallization |
|
| dc.title |
Petrogénesis de los basaltos alcalinos de la Garrotxa, región volcánica del NE de España |
|
| dc.type |
Artículo |
|