N^ 



LONGSHORE 



TRANSPORT 



DIRECTION 



Figure 10. Location diagram showing the configuration of the Late Lafourche 

 coastal barrier system and average rates of shoreline erosion and accretion. 



co;rsa- 





■^l''^^°llf.»i^ 



vva^ChW^'"'''' 



Figure 11. A three-dimensional landform diagram showing barrier types found 

 in the Late Lafourche barrier system. Sediment availability for terrace and 

 dune development decreases left to right, as does shoreline stability. 



25 



