RT Journal Article
T1 Petrología y mineralogía de los xenolitos mantélicos del volcán la Banya del Boc (Girona)
T1 Petrology and mineralogy of mantle xenoliths from La Banya del Boc volcano (Girona)
A1 Oliveras, V.
A1 Galán, Gumer
AB Type I mantle xenoliths enclosed in alkaline mafic lavas and pyroclastic materials from La Banya del Bocvolcano are studied in order to assess the nature of the subcontinental lithospheric mantle in the Catalanarea. Anhydrous spinel lherzolites and harzburgites are the dominant lithologies, but pyroxenites are alsofound. Amphibole as accessory mineral is occasionally observed in peridotites. Protogranular is the mostcharacteristic texture, but peridotites also show porphyroclastic and equigranular textures. All major mineraland spinel compositions indicate depletion by partial melting in peridotites, but metasomatism is also inferred.Decreasing of jadeite component in clinopyroxene with the degree of melting suggests that this could berelated to decompression and upwelling of the mantle. The pyroxenites do not follow the melting trend
YR 2006
FD 2006
LK http://hdl.handle.net/10272/8586
UL http://hdl.handle.net/10272/8586
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026