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High resolution seismic data from shallow analogues can be used to improve our understanding of deeply buried turbidite systems and provide an invaluable aid in resolving what would constitute first-order sub-seismic elements in a conventional seismic survey. This research focuses on the Late Pleistocene Brazos-Trinity turbidite system located on the northern Gulf of Mexico continental slope. The system lies immediately downdip of a lowstand shelfedge delta and is ponded in four mini-basins linked fill-and-spill style. The sedimentary fill consists of onlap-fill packages in each basin, deposited during the last glacial. The results of this work allow us to: {a) determine the overall architecture of a system where the physiographic context and timing are fairly well constrained; (b) reconstruct a complex basin fill history made up of high frequency forward and backstepping elements; (c) improve our understanding of lithofacies distribution; (d) demonstrate that channel levee systems do not represent the first establishment of bypass to downdip basins and are representative of the last sequence within a glacial cycle; and (e) suggest that high frequency climatically-linked changes in sediment supply may control the deposition of 5th order sequences in deep marine clastic systems.

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