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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Barrier spit evolution and primary consolidation of backbarrier facies: West Belle Pass Barrier, LA

Kramer, John N, III 13 May 2016 (has links)
West Belle Pass Barrier is a barrier spit that formed during the last delta lobe progradation associated with the Lafourche delta complex. Located on the western flank of the Caminada-Moreau Headland, West Belle Pass Barrier and Raccoon Pass are located downdrift of the Belle Pass jetties. Morphological changes stemming from storms, jetty infrastructure, and an expanding tidal inlet are evaluated using historical shoreline data and imagery. Littoral transport around the jetties combined with inlet growth created a framework wherein sediment is transported through Raccoon Pass and sequestered as a flood-tidal delta. These events aided in the landward migration of West Belle Pass Barrier, which ultimately loaded and consolidated previously unconsolidated facies. A conceptual model illustrating the primary consolidation of backbarrier facies resulting from washover deposits during one storm is presented. The primary consolidation settlement associated with loading near-surface, water-saturated backbarrier facies is substantially larger than current subsidence rates.

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