We are pleased to welcome Eric Newland to speak at a HotStuff seminar on: The dynamics of submarine explosive eruptions.

Abstract:

In this talk, Eric will explore the dynamics of explosive volcanic eruption columns in the deep ocean. Motivated by the observations of pyroclastic deposits at depths of up to 4 km, Eric will investigate the mixing of fragmented magma with ambient seawater and explore the density and spatial evolution of the subsequent flow that forms. First, we will consider the rise of an eruption column in a quiescent ambient environment via a series of numerical integral models and analogue experiments. Then, we will explore the dynamics of such a flow in various ambient conditions, such as a uniform cross current. Finally, Eric will summarise this work by building a framework to help interpret the dynamics and deposits of submarine eruptions.