Intrusives of pre-Alpine age and their high grade country rocks, subducted-exhumed in Alpine times, has been studied with petro-structural methods, applied after quality mapping. In this subduction environment, focus was oriented on interaction of deformation and metamorphic transformation progress, in areas offering a mosaic of different tectonometamorphic steps. Such apparently incoherent distribution of structural imprints, representing various discrete states of the tectonic sequence heterogeneously frozen in adjacent space, has been recomposed into a coherent progression of deformation events by means of foliation trajectory mapping. Such work guaranteed a petrographic analysis of the mineral support of sequentially ordered planar fabrics, used for thermobarometrical estimates of the deformative and metamorphic evolution. This evaluation has been performed in acid and femic protoliths intruded in the continental crust of the Sesia-Lanzio Zone in the internal Western Alps.
DEFORMATION AND METAMORPHISM RELATIONSHIPS IN ACID AND FEMIC PROTHOLITHS OF THE AUSTROALINE CONTINENTAL CRUST SUBDUCTED AND EXHUMED IN THERMAL REGIME SEVERELY DEPRESSED / F. Delleani ; tutore: M. I. Spalla ; co-tutore: G. Rebay ; coordinatore: E. Erba. UNIVERSITA' DEGLI STUDI DI MILANO, 2013 Feb 05. 25. ciclo, Anno Accademico 2012. [10.13130/delleani-francesco_phd2013-02-05].
DEFORMATION AND METAMORPHISM RELATIONSHIPS IN ACID AND FEMIC PROTHOLITHS OF THE AUSTROALINE CONTINENTAL CRUST SUBDUCTED AND EXHUMED IN THERMAL REGIME SEVERELY DEPRESSED
F. Delleani
2013
Abstract
Intrusives of pre-Alpine age and their high grade country rocks, subducted-exhumed in Alpine times, has been studied with petro-structural methods, applied after quality mapping. In this subduction environment, focus was oriented on interaction of deformation and metamorphic transformation progress, in areas offering a mosaic of different tectonometamorphic steps. Such apparently incoherent distribution of structural imprints, representing various discrete states of the tectonic sequence heterogeneously frozen in adjacent space, has been recomposed into a coherent progression of deformation events by means of foliation trajectory mapping. Such work guaranteed a petrographic analysis of the mineral support of sequentially ordered planar fabrics, used for thermobarometrical estimates of the deformative and metamorphic evolution. This evaluation has been performed in acid and femic protoliths intruded in the continental crust of the Sesia-Lanzio Zone in the internal Western Alps.File | Dimensione | Formato | |
---|---|---|---|
phd_unimi_R08691.pdf
Open Access dal 31/07/2014
Tipologia:
Tesi di dottorato completa
Dimensione
101.61 MB
Formato
Adobe PDF
|
101.61 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.