The School of Geography, Earth and Environmental Sciences organises a regular series of research seminars throughout the academic year to which everyone is welcome to attend. Speakers - both external and internal to the University - will talk on topics related to all aspects of Earth Sciences.
Today's speaker is Dr Christopher Stevenson from the University of Manchester.
Submarine gravity flows are the principal agent by which sediment is moved across the Earth’s surface, and are responsible for the largest sediment accumulations on the planet. They influence global nutrient cycles and pose a significant geohazard to seafloor infrastructure. However, they are currently poorly understood because we lack validated data on key flow properties such as sediment concentration.
In this talk Christopher will outline how he has quantitatively reconstructed key flow properties in two case studies in offshore North West Africa and offshore Newfoundland, which represent the first validated reconstructions of sediment concentration in large-volume submarine flows. He will compare the two systems, which have vastly different sediment concentrations, to explore how constraining this basic flow property enables us to move towards a more quantitative understanding of deepwater systems and their deposits, with broad implications for both science and industry.