On Monday 28th of March......
Morelia Urlaub presented:
"Using Finite Element Modelling to Assess Submarine Slope Stability"
Abstract:
Submarine landslides are not only a hazard for the offshore oil and gas industry or telecommunication cables at continental shelves, slopes or deeper water, but also have the potential to trigger tsunamis. They are much larger than their counterparts on land and occur on extremely low slope angles (typically 1-2 degrees). Initiation mechanisms for these slides are vital for their prediction but are poorly understood, and in-situ investigations are restricted by a hundreds of meters thick water column. One idea is that rapid asymmetric deposition of sediment on the sea floor causes high rates of overpressure in a low permeability and low stiffness material as typical for marine sediments. We use transient, coupled Finite Element analysis to predict how the stress state of a submerged finite 2 degree slope that is subjected to slow continuous, asymmetric loading, changes over time as well as to assess the stability of the slope. The model is used to investigate the emergence of slope instability for different permeabilities, giving insights into the field conditions necessary for the development of submarine slope failure by overpressure alone.
On Monday 21th of March......
Anya Crocker presented:
"Palaeoceanography and Gas Hydrate Stability along the West Spitsbergen Continental Margin"
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