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Tulane experiments on influence of floods on delta dynamics & stratigraphy



Delta (TDB-12) undergoing pure aggradation with constant water & sediment discharge.

Video of laboratory experiment documenting evolution of channelized delta experiencing relative subsidence at a constant rate with a constant input of water and strongly cohesive sediment. Digital video was collected from camera above the basin. Blue dye added to water aids identification of flow field. More details of experiment can be found in manuscript:
Esposito, C.R., Di Leonardo, R.R., Harlen, M., Straub, K.M., 2018, Sediment storage partitioning in alluvial stratigraphy: The influence of discharge variability, Journal of Sedimentary Research, v. 88, p. 717-726, DOI:10.2110/jsr.2018.36.



Delta (TDB-15-2) undergoing pure aggradation with water & sediment discharge variability.

Video of laboratory experiment documenting evolution of channelized delta experiencing relative subsidence at a constant rate with water and sediment discharge variability. Long term flux of water and sediment is identical to experiment TDB-12, but system experienced floods that lasted for 6 minutes every hour. During floods, water and sediment discharge was 3X the base flow. Digital video was collected from camera above the basin. Blue dye added to water aids identification of flow field.
Esposito, C.R., Di Leonardo, R.R., Harlen, M., Straub, K.M., 2018, Sediment storage partitioning in alluvial stratigraphy: The influence of discharge variability, Journal of Sedimentary Research, v. 88, p. 717-726, DOI:10.2110/jsr.2018.36.


Last modified: 14 September 2019