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South Shore

In addition to the dredge pit, other geologic features located in the vicinity of the south shore include the Pine Island Barrier trend (blue isopach lines) and a Pleistocene incised channel (red depth-to-channel lines). The Pine Island Barrier trend is a relict Holocene transgressive barrier system that developed along the southeastern shoreline of present-day Lake Pontchartrain. The trend is thickest below New Orleans, and broadens and thins to the southeast. The sands of this barrier system resist compaction and subsidence, providing stability for the New Orleans area and the land bridge between Lakes Pontchartrain and Borgne.

In addition to the dredge pit, other geologic features located in the vicinity of the south shore include the Pine Island Barrier trend and a Pleistocene incised channel.

Return to: Geologic Framework

Coastal & Marine Geology Program > St. Petersburg Coastal and Marine Science Center > Geologic Framework

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Updated May 06, 2013 @ 09:24 AM (THF)