Πετρολογία και γεωχημεία των μεταμορφωμένων σχηματισμών της Αττικής

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In the present dissertation, we study, the metamorphic evolution and petrogenetic history of the protoliths of the metamorphic rocks of Eastern Attica. The metamorphic complex of Eastern Attica respresents the NW part of Attic-Cycladic Crystalline zone, comprised by the Upper Tectonic Unit (UTU) and the Lower Tectonic Unit (LTU). In this study we use thermobarometric methods (multi-equilibrium method, chlorite thermometry, chlorite-chloritoid thermometry, phengite barometry, pseudosections and graphite thermometry) geochemical plots have been used in order to evaluate the role of various petrological processes which induce the geochemical characteristics of the protoliths of the metabasites and gneisses. The zonation of blue amphiboles, #he glaucophane, pumpellyite and lawsonite inclusions in albite and epidote and the omphacite-glaucophane-actinolite-epidote assemblage in the metabasites show a prograde path with increasing pressure from pumpellyite-actinolite phase field towards lawz ...
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