Abstract
The northern Gulf of Mexico continental shelf is characterized by superimposing deltas. One such delta, informally named Lagniappe, extends east of the Mississippi Delta from mid-shelf to the continental slope. This late Wisconsinan delta is adjacent to, but not associated with the Mississippi Delta complex: the fluvial source was probably the ancient Pearl and/or Mobile Rivers. The fluvially dominated Lagniappe Delta is characterized by complex sigmoid-oblique seismic-reflection patterns, indicating delta switching of high-energy sand-prone facies to low-energy facies. The areal distribution and sediment thickness of the delta were partially controlled by two diapirs.
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Kindinger, J.L. Depositional history of the Lagniappe Delta, northern Gulf of Mexico. Geo-Marine Letters 9, 59–66 (1989). https://doi.org/10.1007/BF02430425
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DOI: https://doi.org/10.1007/BF02430425