Barrier Lagoon Coasts•Sediment rich•Rising sea level•Transgressive vs. Regressive systems

North Carolina Outer Banks Barrier Islandsand Lagoon

Pamlico Sound

Albemarle Sound

Cape Cod, sediment transport under bidirectional wave regime

Morphodynamics of barrier-lagoon system

Types of barriers and spits

The Emergence Model of barrier origin

The Submergence Model of barrier origin

The Breach Model of barrier origin

Muliwai – stream mouth isolated from the sea

Sediment response to sea level rise and changing slope of transgression surface

The overwash process, barrier rolloverand longshore transport

Tidal Marsh formation

Mississippi subdelta growth and wastage

Overwash deposit geometry

Pleistocene Barriers compose the surface of transgression

Summary of Barrier-lagoonSedimentary processes

Walthers Law and a geologic model of barrier-lagoon system…ultimately truncated by ravinement

Models of coastal evolution and resulting geologic record

Other models of barrier morphology

Transgressive and Regressive settings