Detailed geological mapping paired with meso to microstructural analyses pointed out the presence, in the Lodè-Mamone Ortogneiss Complex (Baronie, North-eastern Sardinia), of two folds systems developed during the third deformation phase overprinting older D2 antiforms and synforms. These systems of fold are characterized by axes trending respectively WNW-ESE and SW-NE and steeply dipping axial planes. As a result of this study, the structure, previously interpreted as a simpler second phase-related antiform, can be better explained as the result of interference pattern between the second and the third phase-related fold systems. Greater lithological complexity can be observed also in the acid orthoderivate complex, resulting from metamorphism on a series of Ordovician granitoid intrusions.
Analisi strutturale dell’antiforme di Lodè-Mamone (Sardegna nord-orientale): un esempio di intereferenza complessa a scala chilometrica nl basamento Ercinico sardo
FRASSI C.;MONTOMOLI, CHIARA
2005-01-01
Abstract
Detailed geological mapping paired with meso to microstructural analyses pointed out the presence, in the Lodè-Mamone Ortogneiss Complex (Baronie, North-eastern Sardinia), of two folds systems developed during the third deformation phase overprinting older D2 antiforms and synforms. These systems of fold are characterized by axes trending respectively WNW-ESE and SW-NE and steeply dipping axial planes. As a result of this study, the structure, previously interpreted as a simpler second phase-related antiform, can be better explained as the result of interference pattern between the second and the third phase-related fold systems. Greater lithological complexity can be observed also in the acid orthoderivate complex, resulting from metamorphism on a series of Ordovician granitoid intrusions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
