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Figure 1. During periods of falling-to-low sea level, rivers build seaward-thickening multilobed delta complexes at the shelf-edge. These complexes contain thick clinoform sets that drape onto the upper continental slope. This schematic diagram shows the complex internal geometries of the Lagniappe shelf-edge depocenter. The inset map locates the Lagniappe delta along the Mississippi-Alabama shelf-edge just east of the active Mississippi River delta.