Publication: Los agregados de clorita y mica en las rocas palezoicas del zócalo de la Cordillera Ibérica nororiental
Loading...
Official URL
Full text at PDC
Publication Date
1987
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Servicio de Publicaciones de la Universidad de Alcalá
Citations
Exportar
Abstract
En las areniscas y pizarras paleozoicas afloran tes al NE de Calatayud, en la Cordillera Ibérica, se encuentran como componentes de las rocas agregados de clorita y mica, formados por capas de clorita y moscovita que presentan un grado de complejidad variable. Los agregados son anteriores a la deformación y se disponen estadísticamente paralelos a la estratificación . Durante el desarrollo de la esquistosidad los agregados fueron microplegados, produciéndose una reorientación a favor de los planos de la esquistosidad. Los mecanismos de deformación más importantes son la rotación mecánica, la recristalización y la disolución por presión . Los agregados se forman du rante la diagénesis, con probable alteración de biotita a clorita. La moscovita es la fase estable durante la deformación y el metamorfismo.
Chlorite-mica aggregates occurs in paleozoic sandstones and slates outcroppinq to the NE of Calatayud, in the Iberian Range. They consist of stacked layers ot white mica (muscooite) and chlorite which exhibit varying degrees ot complexity. They were, in part, present beiore deformation and r e statistically parallel to bedding. They have been deformed during cleavage development by microfolding and they were reoriented towards the cleavage planes. Mechanical rotation, recrystallization and pressure solution appear to be the most important mectumisms [or cleavage development in these rocks. The aggregates were formed during dÜLgenesis, probably by alteration ot biotite to chloriie. Muscovite is the stable phase during deformation and metamorphism.
Chlorite-mica aggregates occurs in paleozoic sandstones and slates outcroppinq to the NE of Calatayud, in the Iberian Range. They consist of stacked layers ot white mica (muscooite) and chlorite which exhibit varying degrees ot complexity. They were, in part, present beiore deformation and r e statistically parallel to bedding. They have been deformed during cleavage development by microfolding and they were reoriented towards the cleavage planes. Mechanical rotation, recrystallization and pressure solution appear to be the most important mectumisms [or cleavage development in these rocks. The aggregates were formed during dÜLgenesis, probably by alteration ot biotite to chloriie. Muscovite is the stable phase during deformation and metamorphism.