Ingression Coast

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Ingression coast, archipelago off Naantali ( Finland )

Ingression coast , also lowering coast , is the name for a mostly flat ground, coast caused by the penetration of the sea due to crustal movements , or an increase in sea levels produced.

These coasts are characterized by a subaerically created relief that has so far undergone little transformation by littoral ( tidal ) processes, as the sea ​​level, which fell by more than 100 meters during the last glacial period, only reached its present level around 6,000 years ago.

According to the geomorphological characteristics of the flooded landform - z. B. glacial or fluvial shaped relief - different types of ingression coasts emerged, z. B. Rias , archipelago - and fjard coasts and fjords - and Bodden coasts.