Casas Tuset, Josep Maria2012-12-132012-12-1319820567-7505https://hdl.handle.net/2445/33067An example of the relationship that exist between the preferred crystaliografic orientation of quartz grains and the attitude of the mylonite foliation of quartz-feldspar mylonites is described. These rocks are the result of the inhomogeneous deformation under low-grade metamorphic conditions of a late Hercynian granodiorite, intruded into the gneisses of the slopes of the Canig massif (Eastern Pyrenees). The Costabona mylonites have a quartz c-axis fabric in pseudo-twogirdles symmetrical with respect to the mylonite foliation and perpendicular to the shearband systems which produce an extensional crenulation of the mylonite foliation.7 p.application/pdfeng(c) Casas Tuset, Josep Maria, 1982TectònicaGneisCanigó (França : Massís)TectonicsGneissCanigou Mountains (France)info:eu-repo/semantics/article0104632012-12-13info:eu-repo/semantics/openAccess