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Record: oai:ARNO:505945

AuthorH.G. Avé Lallemant
TitlePetrology, petrofabrics, and structural geology of the Sierra de Outes — Muros Region (Prov. La Coruña, Spain)
JournalLeidse Geologische Mededelingen
AbstractThe petrography and the structural geology of some parts of the ”Hercynian” orogene of western Galicia is discussed. The oldest rocks are metasediments and orthogneisses which have some relic-structures of an older orogeny. The ”Hercynian” migmatization gave rise to a large series of anatectic granite formations. Three ”Hercynian” phases of deformation, all with a WSW-ENE-directed stress-field, have been distinguished. Younger wrench-faults are originated by the same stress-field. Some fabric analyses show that the first two phases have a sub-vertical, NNW-SSE-striking schistosity, each with a horizontal B-axis, and that the third phase has a vertical N-S-striking cleavage with a vertical B’-axis. The migmatization took place after the first phase.
Document typearticle
Download paperspdf document http://www.repository.naturalis.nl/document/549711 
pdf document http://www.repository.naturalis.nl/document/549712