Subduction zone dynamics


The dynamics of subduction zone environments is strictly related to phase transformation both in the subducted slab and in the overlying mantle wedge. Experimentally derived phase diagrams are combined with thermomechanical models to predict the behaviour of solids, liquids and fluids at variable kinematic conditions.


 

Recent publications include:

Poli S. & Schmidt M.W. (2002) Petrology of subducted slabs. Annual Review Earth Planetary Sciences 30: 1-29

Fumagalli P., Stixrude L., Poli S., Snyder D. (2001) The 10A phase: a high-pressure expandable sheet silicate stable during subduction of hydrated lithosphere. Earth Planetary Science Letters, 186: 125-141

Molina J-F. & Poli S. (2000) Carbonate stability and fluid composition in subducted oceanic crust: an experimental study on H2O-CO2 -bearing basalts. Earth Planetary Science Letters, 176: 295-310

Fumagalli P. & Poli S. (1999) Phase relationships in hydrous peridotites at high pressure: preliminary results of multianvil experiments. Periodico di Mineralogia, in press.

Schmidt M.W. & Poli S. (1998) Experimentally based water budgets for the dehydrating slabs and consequences for arc magma generation. Earth Planetary Science Letters, 163: 361-379.

Poli S. & Schmidt M.W. (1995) Water transport and release in subduction zones: experimental constraints on basaltic and andesitic systems. Journal of Geophysical Research, 100: 22299-22314.


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