The baric character of the Patagonian basement as deduced from the muscovite d060,331 spacing: a first contribution from Eastern Andean Metamorphic Complex (Andes, Chile)
Ramírez, Elisa; Sassi, Raffaele
European Journal of Mineralogy Volume 13 Number 6 (2001), p. 1119 - 1126
published: Nov 26, 2001
ArtNo. ESP147051306012, Price: 29.00 €
In this work we present new data concerning the pressure character of metamorphism in the Aysén Eastern Andean Metamorphic Complex. The parameter d060,331 of the K-white mica from basement pelitic rocks was measured as a barometric indicator. Three sample groups from different areas were considered, for a total of 69 samples. All measured values suggest a metamorphic setting characterised by intermediate to high pressure.