Ortogneises y metasedimentos de la formación infrabasal al Ollo de Sapo (Macizo de Hiendelaencina, Guadarrama Oriental)

Abstract

This paper deals with an augengneis unit called Antonita-gneis. On the basis of their petrological and geochemical characteristies these gneisses are considered as old two-mica granites, with a silicosodic trend. These gneisses and their late manifestations (metaaplites and metapegmatites are induded in a metasedimentary series, belonging to the metamorphic grade of staurolite - kyanite.