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The destructive and BUILDING ACTIVITIES OF THE SEA PDF Print E-mail
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Monday, 05 October 2009
 Activities marine waters is primarily the coast - a border strip of land and sea. Boundaries of the coast in parts and sub-aquatica are determined by the extent of the impact of waves, currents and tides that model the original sculpture of the sea shore.
Effects of activity also depend on the sea coast of the sculpture. On the coast the high seas prevails destructive activity, low - edifying. Coast formed mostly due to the high flooding by the sea, hill or mountain areas. They are constructed mostly of crystalline rocks, relatively resistant to destruction by wave processes, or abrasion. Waves constantly hit by the steep walls of the high coast of undercutting the edge and cause leaching of rock. Wave-cut creates a niche. Constantly undercut and retreat to the shore is called a high cliff. Material from a broken cliff defaulting on its base in the direction of the sea - creates a platform for shore (Wave-cut). The main factor shaping the coastal zone is caused by the surging waves called tsunami - sea earthquake (ten miles long, elevation: 20, 30, 40, 50 m).

Along the shore - litoralne currents that transport the material along the shore, hence the phenomenon spit. Coast of the flat, low-emerged as a result of accumulation. Coastal zone of the coast is constantly being flooded by waves and is called the beach. Within the beach and shallow sea is constantly mixing the material by waves and currents offshore - to create a rich and wide shallow beaches - the underdeveloped coastline.

Coast flat with well-developed shoreline appearance owes its dominant coastal currents. Formed: the scythe, medium, and spits.

Last Updated ( Tuesday, 27 October 2009 )
 
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