Dear Colleagues,
We would like to invite you to submit an abstract to our session at SIMP-SGI-SOGEI 2019 conference (September 16-19, 2019, Parma, Italy):
Session P12 Advances in Understanding Geological and Petrological Processes in the Oceanic Lithosphere
Conveners: Giulio Borghini (Univ. Milano), Camilla Palmiotto (ISMAR Bologna), Alessio Sanfilippo (Univ. Pavia)
This session concerns the study of geological and petrological processes that drive the origin and evolution of the oceanic lithosphere. Upwelling of the upper mantle below mid-ocean ridges, induced by plate separation along accretionary boundaries, triggers the mantle melting and the production of large volume of magma that crystallize at shallow depth, forming new oceanic crust. Furthermore, it is now recognized that extensional tectonics occurring along slow and ultra-slow mid-ocean ridges plays a critical role in the formation on new seafloor, exhuming lower crustal and upper mantle rocks. The oceanic lithosphere is thereby the result of complex processes involving tectonics, mantle melting, melt-rock reactions, melt crystallization, high- to low-temperature deformation, and interactions during hydrothermal circulation. Our understanding of this complex system requires to combine the results from the study of all these processes and to integrate the messages from different disciplines entailing geological, geophysical and petrological approaches.
For this purpose, we encourage contributions on continental rifting, mantle processes, igneous accretion, deformation, hydrothermal circulation, together with those resulting from more general approaches focused to the architecture and geodynamic evolution of extensional tectonics in oceanic settings. Results related to recent oceanographic expeditions, as well as field-based studies on fossil oceanic lithosphere, are warmly welcomed.
Looking forward to see you in Parma!
Giulio, Camilla and Alessio