Evidenze di deformazione in facies granulitica lungo la linea milonitica di Amaroni: applicazione EBSD al quarzo. Evidence of deformation in granulite facies on Amaroni mylonitic line: EBSD quartz application

In this work we have studied a sample from Amaroni shear zone, in Calabrian Serre Massif. In this zone is placed an important alpine thrust such as Curigna-Girifalco Lines that separates the deepest high grades metamorphic basement from upper lower grade metamorphic domains. Therefore, in this place there is an outcropping portion of hercynian continental crust exumated by tertiary tectonic. The sample comes from migmatitic paragneiss dated about 300 My. This age is obtained by Zircon dating that identifies a metamorphic peak. This is related to an important magmatic activity, with an emplacement of granitoids magmas in the intermediate crust. Later, this deep portion was affected and involved in alpine and appenninic orogeny that produced a nappes stacking from different geologic provenience. The analysis has been made with SEM, using crystallographic techniques like EBSD. This study is finalized to verify the presence of hypothetical deformation in granulitic facies, in the high temperature condition.