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AuthorsScalera, G. 
TitleTerremoti, trasformazioni di fase, catene a pieghe: è possibile una nuova prospettiva globale?
Issue DateMar-2007
Series/Report no./ 4 (2007)
KeywordsDeep earthquakes
Vertical displacements
Orogenic processes
Mantle phase changes
Expanding Earth
Subject Classification04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes 
04. Solid Earth::04.01. Earth Interior::04.01.04. Mineral physics and properties of rocks 
AbstractStarting from considerations about the unexpected inhomogeneous ‘filamentous’ distribution of the deep hypocentres on the Italian, Mediterranean and global Wadati-Benioff zones, a new global tectonics framework involving non-collisional orogenic processes – and deriving from global expansion, rifting, isostasy, surfaceward flow of deep material, gravitational spreading, and mantle phase changes – is proposed. The associated model of evolution of an orogen can be linked to the volume increase of an isostatically uprising mantle column which segments slowly overcome a solidus-solidus boundary of the temperature-pressure phase diagram.
DescriptionInvited contribution to the annual meeting of the Structural Geology Group of the Italian Geologic Society, held in Urbino in March 2007
Appears in Collections:Papers Published / Papers in press

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