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Environmental Atlas of the Lake Pontchartrain Basin

Lake Pontchartrain Atlas Home
Lake Pontchartrain Atlas:
Preface
Table of Contents
Introduction
Environmental Overview
Environmental Status & Trends
Restoration
Physical Environments
Basin Geology You are at the Basin Geology section of the Environmental Atlas of Lake Pontchartrain
Biological Resources
Environmental Issues
Bibliography
Resources
Contributors
Acronyms
Contact:
Jack Kindinger
Basin Geology: Geology | Quarternary Framework | Geomorphology | Bathymetry | Geologic Resources

Basin Geology - Geomorphology

Contributors: Beall, Zganjar, Westphal, Penland

Location map for Lake Borgne.
Figure 49: Location map for Lake Borgne.

Map showing shoreline types of Pass manchac.

Map showing shoreline types of Pass manchac.
Legend
pink bar Shell Beach
A beach of high relief made up predominately of shell.
pink bar Sand Beach
A beach made up of fine or coarse grain sand.
pink bar Brackish Marsh
Any unforested, vegetated area normally subject to inundation or tidal action at any time sufficient to support wetland-development, emergent vegetation with salinity between 8-16 ppt.
pink bar Salt Marsh
Any unforested, vegetated area normally subject to inundation or tidal action at any time sufficient to support wetland-development, emergent vegetation with salinity between 16-40 ppt.
pink bar Riprap Armor
Embankment or revetment along a shoreline reinforced by things thrown together without order in the form of broken concrete, concrete blocks, old pilings, rubble, etc. to resist erosion.
red bar Bulkhead
A wood, steel, or concrete wall along a waterfront. Can be adjacent to the land as a retaining wall or separate from it as a seawall to provide wave protection and resist erosion.
Figure 50: Shoreline types of Lake Borgne. (Click on a letter to see a photograph of the shoreline.)

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