General case study facts

Why is Holderness eroding 1m a year?

bedrock made up of till and waves have a long fetch over the North Sea, small beaches offer little protection as waves are destructive, and sea level rise is a further threat.

How much did the groyne repair cost in Hornsea?

Holiday resort with promenade and frontage, groyne repair cost 5.2 million. Old sea walls has been raised slightly, sand dunes in the south beach were planted with trees

How was durdle door formed?

Natural arch, hard Portland limestone exploited by erosion of weakness between vertical layers of rock. Wealden beds behind more easily eroded

What are either side of Portland bill?

Raised beaches which formed during interglacial periods of the Pleistocene when sea level was higher than today

What is Portland bill?

Distinctive geological headland at the tip of the Isle of Portland, Doeset. Characterised by south-dipping Lage Jurassic Portland Stone overlying Portland sand and Kimmeridge Clay

What type of coastline is the Dalmatian Coast Croatia

Concordant coastline, formed by faulting and rising sea levels since the end of the last ice age