Intercrecimientos de filosilicatos en la Cuenca de Cameros y su relación con la génesis de la esquístosidad en la etapa metamórfica de bajo grado

Abstract

The Cameros Basin, a Wealdian Basin of Northern Iberian Range, underwent a very low grade cretaceous metamorphism coeval with a folding related cleavage. Deformation can be observed at different scales in the whole stratigraphie sequence. Composed grains qf chlorite and mica intergrowths are common in these rocks and display different shapes that are dependent of the deformation mechanism. Textural and compositional study by BSSEM of these stacks, indicate the existence of detrital precursors partially transformed during the development of cleavage in a low temperature environment