Geología de los materiales del Complejo Granítico-Metamórfico de Villaseco-Pereruela(Zamora)

Zusammenfassung

This paper is a study of the «Villaseco-Pereruela» Granitic- Metamorphyc Complex, situated western to Zamora town. In it, the cartographic, litologic, structural and compositional features of the metasedimentary, metavolcanic-sedimentary and intrusive granitic materials are described. The first kind of materials, with an age Pre-Arening is a stratigraphyc serie which is formed since the botton to the top by gneisses with «eyes» texture, and over they, biotitic-moscovitic schists with some quarzitic levels. At the top of the serie there is another gneis level, with «eyes» texture too, but different to the first unit. All this serie is affected by three main strain fases with associated metamorphism and other later corresponding to the Hercinic Orogeny. The intrusive rocks are leucogranites and outcrout with massive shapes and dikes with variable dip. These rocks have been considered sintectonic with the third hercinic fase. The attributed origin for these rocks is the anatexia, not too deep, in the matasedimentary serie.