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http://hdl.handle.net/2122/2315| Authors: | Scalera, G. | Title: | Terremoti, trasformazioni di fase, catene a pieghe: è possibile una nuova prospettiva globale? | Journal: | Rendiconti della Società Geologica Italiana, Nuova Serie | Series/Report no.: | / 4 (2007) | Publisher: | Società Geologica Italiana | Issue Date: | Mar-2007 | Keywords: | Deep earthquakes Vertical displacements Orogenic processes Mantle phase changes Expanding Earth |
Subject Classification: | 04. 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 |
Abstract: | Starting 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. | Description: | Invited contribution to the annual meeting of the Structural Geology Group of the Italian Geologic Society, held in Urbino in March 2007 |
| Appears in Collections: | Article published / in press |
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