Nueva interpretación petrológica y tectónica de las anfibolitas pobres en calcio del antiforme de Arinteiro (NO del Macizo Ibérico). II: Estructura e implicaciones para la génesis de anfibolitas pobres en calcio
| dc.contributor.author | Gómez Barreiro, Juan | |
| dc.contributor.author | Castiñeiras, Pedro | |
| dc.contributor.author | Martínez Catalán, José R. | |
| dc.contributor.author | Arenas, R. | |
| dc.date.accessioned | 2014-11-19T11:45:12Z | |
| dc.date.available | 2014-11-19T11:45:12Z | |
| dc.date.issued | 2002 | |
| dc.description.abstract | The Arinteiro massif has a complex structure which includes shear zones, recumbent folds, thrusts and upright folds. Ca-poor amphibolites occur associated with the shear zones, although there is some controversy about the origin of such rocks. Shear zones could act as channel-ways for fluids during deformation, modifying the chemical composition of sheared rocks. Detailed field studies and fabric analysis show a close relationship between the impoverishment in calcium of the Arinteiro massif amphibolites and the ductile shear zones. A model to explain the evolution of Ca-poor amphibolites is proposed in which fluids are channelized by the shear zones, extracting calcium from the normal amphibolites. Moreover, calc-silicate rocks occur far from deformation zones and are considered to be metasomatic products of the interaction between Ca-rich fluids/common amphibolites | en_US |
| dc.identifier.uri | http://hdl.handle.net/10272/9362 | |
| dc.language.iso | spa | en_US |
| dc.publisher | Sociedad Geológica de España | en_US |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
| dc.rights.accessRights | open access | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
| dc.subject.other | Ca-poor amphibolites | en_US |
| dc.subject.other | Ca-metasomatism | en_US |
| dc.subject.other | Ordenes Complex | en_US |
| dc.title | Nueva interpretación petrológica y tectónica de las anfibolitas pobres en calcio del antiforme de Arinteiro (NO del Macizo Ibérico). II: Estructura e implicaciones para la génesis de anfibolitas pobres en calcio | en_US |
| dc.title | New tectonic and petrologic interpretation of a Ca-poor amphibolites occurrence in the Arinteiro antiform (NW Iberian Massif). II: Structure and genetic implications for the Ca-poor amphibolites | eng |
| dc.type | journal article | en_US |
| dspace.entity.type | Publication |
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