SE6	Constraints on subduction zone dynamics

Convener: Elliott, T.
Co-Convener(s): Faccenna, C.; Helffrich, G.R.; Poli, S.; Schmidt, M.W.
Wednesday, 21 April 1999
Lecture Room: Rembrandtzaal
Chairpersons: Elliott, T.; Faccenna, C.

09:00	GUTSCHER, M.-A.; MALAVIEILLE, J.; LALLEMAND, S.
		Buoyant plateaus and flat subduction: cause and effect

09:15	VAN HUNEN, J.; VAN DEN BERG, A.P.; VLAAR, N.J.
		The influence of rheology on the subduction of young lithosphere

09:30	ASCH, G.; BRASSE, H.; GIESE, P.; GÖTZE, H.J.;
		HABERLAND, C.; WIGGER, P.; YUAN, X.
		Fluid generated features in the convergence system of the central
		Andes, imaged by geophysical observations

09:45	VACHER, P.; SPAKMAN, W.; WORTEL, M.J.R.
		Ray-tracing experiments through forward models of subduction zones

10:00	ELLIOTT, T.; KOETSIER, G.
		Melting beneath island arcs: U-series constraints

10:15	ZLOBIN, S.K.
		Igneous geochemistry and geodynamic evolution of the Vanuatu Arc:
		before and after subduction reversal

10:30	BREAK

Chairpersons: Poli, S., Schmidt, M.W.

11:00	SUGIHARA, T.
		Origin of Setouchi HMA: an example of unusual slab-derived flux

11:15	TIEPOLO, M.; OBERTI, R.; VANNUCCI, R.; ZANETTI, A.
		amph/LD for Nb and Ta: crystal-chemical control and implications for
		subduction-related magmatism

11:30	MOLINA, J.F.; POLI, S.
		Fluid composition in H2O-CO2 bearing metagabbros at high pressure:
		an experimental study

11:45	FUMAGALLI, P.; POLI, S.
		Phase transformations in (H2O) MG3SI4O10(OH)2 and the dehydration
		of ultramafics in subducting slabs

12:00	SKJERLIE, K.P.; PATIDO DOUCE, A.E.
		Fluid-absent, super-solidus phase relations to zoisite in a west
		Norwegian eclogite, implications for melting in subduction zones
		and in the deep crust

12:15	Discussion

12:30	END OF SESSION