Examine the importance of marine processes in shaping coastlines with references to stretches of coastline you
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Coasts are open systems with inputs processes and outputs; there are many different processes in the system, which are all inter-linked to one another. Marine processes have a major effect on a coastal system and to explain this fully I will use the stretches of coastline surrounding the Isle of Arran, in Scotland.
Approximately 500,000,000yrs Bp. the sedimentary rock on the landmass later to become Arran metamorphosed as the destructive boundary it was situated on formed an orogeny. The rock formed from this metamorphosis was Phyllite. This rock is now found in the North of the island as shown by the map below. When Arran had moved to 20degrees north of the equator, it experienced a very dry, arid climate with an abundance of sand. The presence of this sand then lead to sandstone being formed in the south of the island. The final changes and additions to the geology of Arran happened approximately 60,000,000yrs Bp as the Magma rose from below the Atlantic. This formed a volcano in the north of the island...