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Tulane experiments on shelf-edge delta dynamics


Tulane coupled Shelf-edge delta - submarine fan experiment (TDWB-17).

Video of laboratory experiment (TDWB-17) documenting evolution of coupled channelized delta and downslope fan experiencing a range of sea level conditions. Sea level cycles are scaled on autogenic space and time scales. Experiment contains three stages. First stage lacks sea level cycles, second stage has 4 small magnitude and short period cycles, and stage 3 has 1 large magnitude and long period cycle. In addition to cycles of relative sea level, experiment included an hourly flood cycle to promote transport of sediment to the marine and a long term sea level rise trend that mimics subsidence. Digital video was collected from camera above the basin. Images were taken every 60 minutes with input water dyed to aid identification of flow field. Colored sediment represents coarsest 10% of input sediment distribution. More details of experiment can be found in manuscript:
Straub, K.M., 2019, Morphodynamics and stratigraphic architecture of shelf-edge deltas subject to constant vs. dynamic environmental forcings: A laboratory study, Frontiers in Earth Science, 7:121, DOI:10.3389/feart.2019.00121.


Tulane coupled Shelf-edge delta - submarine fan experiment (TDWB-17).

Video of laboratory experiment (TDWB-17) documenting evolution of coupled channelized delta and downslope fan experiencing a range of sea level conditions. Sea level cycles are scaled on autogenic space and time scales. Experiment contains three stages. First stage lacks sea level cycles, second stage has 4 small magnitude and short period cycles, and stage 3 has 1 large magnitude and long period cycle. In addition to cycles of relative sea level, experiment included an hourly flood cycle to promote transport of sediment to the marine and a long term sea level rise trend that mimics subsidence. Topography was collected from a zero offset laser. Maps were taken every 3 hours. More details of experiment can be found in manuscript:
Straub, K.M., 2019, Morphodynamics and stratigraphic architecture of shelf-edge deltas subject to constant vs. dynamic environmental forcings: A laboratory study, Frontiers in Earth Science, 7:121, DOI:10.3389/feart.2019.00121.


Last modified: 15 September 2019