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Tulane experiments on sediment supply cycle influence on delta dynamics & stratigraphy


Delta (TDB-16-3-S1) experiencing large magnitude, short period sediment supply cycles.

Video of laboratory experiment documenting evolution of channelized delta experiencing large magnitude and short period sediment supply perturbations. While sediment supply is changing the experiment had constant feed rates of input water and a long term sea level rise trend that mimics subsidence. Experiment shares identical boundary conditions as TDB-12, except for the sediment supply cycles. Digital video was collected from camera above the basin. Images were taken every 15 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:
Toby, S.C., Duller, R.A., De Angelis, S., Straub, K.M., 2019, A stratigraphic framework for the preservation and shredding of environmental signals, Geophysical Research Letters, v. 46, DOI: 10.1029/2019GL082555.


Delta (TDB-16-2) experiencing small magnitude, long period sediment supply cycles.

Video of laboratory experiment documenting evolution of channelized delta experiencing small magnitude and long period sediment supply perturbations. While sediment supply is changing the experiment had constant feed rates of input water and a long term sea level rise trend that mimics subsidence. Experiment shares identical boundary conditions as TDB-12, except for the sediment supply cycles. Digital video was collected from camera above the basin. Images were taken every 15 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:
Toby, S.C., Duller, R.A., De Angelis, S., Straub, K.M., 2019, A stratigraphic framework for the preservation and shredding of environmental signals, Geophysical Research Letters, v. 46, DOI: 10.1029/2019GL082555.


Delta (TDB-16-1) experiencing small magnitude, short period sediment supply cycles.

Video of laboratory experiment documenting evolution of channelized delta experiencing small magnitude and short period sediment supply perturbations. While sediment supply is changing the experiment had constant feed rates of input water and a long term sea level rise trend that mimics subsidence. Experiment shares identical boundary conditions as TDB-12, except for the sediment supply cycles. Digital video was collected from camera above the basin. Images were taken every 15 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:
Toby, S.C., Duller, R.A., De Angelis, S., Straub, K.M., 2019, A stratigraphic framework for the preservation and shredding of environmental signals, Geophysical Research Letters, v. 46, DOI: 10.1029/2019GL082555.


Delta (TDB-16-3-S2) experiencing medium magnitude, long period sediment supply cycles.

Video of laboratory experiment documenting evolution of channelized delta experiencing medium magnitude and long period sediment supply perturbations. While sediment supply is changing the experiment had constant feed rates of input water and a long term sea level rise trend that mimics subsidence. Experiment shares identical boundary conditions as TDB-12, except for the sediment supply cycles. Digital video was collected from camera above the basin. Images were taken every 15 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:
Toby, S.C., Duller, R.A., De Angelis, S., Straub, K.M., 2019, A stratigraphic framework for the preservation and shredding of environmental signals, Geophysical Research Letters, v. 46, DOI: 10.1029/2019GL082555.


Last modified: 15 September 2019