A3: Submarine magmatic and hydrothermal processes

(W. Bach, A. Koschinsky, Bremen; K. Lackschewitz, Kiel)

The accretion of oceanic crust and associated element and fluid fluxes profoundly influence the ongoing differentiation of our planet. Recent explorations of oceanic spreading centres and island arc systems have demonstrated direct linkages between magmatic and hydrothermal systems that can be investigated by geochemical investigations of vent fluid chemistry. Likewise, advances in experimental and theoretical approaches have shed new light on the role of melt-rock and water-rock interactions in magmatic-hydrothermal systems.
This session invites all contributions pertaining to the submarine magmatic accretion of ocean floor, seamounts and arcs, and to the investigation of hydrothermal vents developed in these settings. Papers examining interactions and feedbacks between magmatic and hydrothermal systems, or presentations addressing hydrothermal system interactions with the oceans are particularly welcome.