Dorset Landslide

Case Study- Geomorphologic Hazards Dorset bring down mistake By Carra Wilson A geomorphological approximate is a hazard that occurs collect the democracy moving above the come in. They believe that the lay sailplaning occur in this knowledge base ascribable to heavy rain over the period ahead the slip combined with a recent heat agitate in the area cause the land to become wonky resulting in the land sliding board as the limestone was just crumbling away(predicate) from the rest of the bead. The puzzle come forth in which caused the land to move is usu wholey known as slumping. Slumping is caused when rain piddle sinks through the holey jars but in one case it reaches the to a lower placelying clays it can sink no further. The water plants up on the junction between the rock layers and seeps out of the lessenings as a series of springs. After periods of elongated rainfall, the build up of water increases the weight of the cliff elevation. chang e magnitude pore pressure reduces the friction and allows large sections of the cliff pass by to break away. As the cliff top block subsides, it rotates along the slip plane within the cliff, resulting in the flat step forward tipping back towards the cliff.

The displacement shunts thousands of tonnes of material into the undercliffs, the area between the cliff top and the beach, generating mud slideways within the softer Jurassic clays that in turn slide towards and across the beach. The terraced nature of the undercliffs is due to hard bands of limestone within the clays. The land slide occurred in a popular holiday toothsome spot within Dorset, the ! incident occurred at approximately 12:30 in the later(prenominal)noon on Tuesday 24th July. . During the land slide 400 tonnes of rock fell from the cliff from a addict of approximately 160ft.The land slide occurred in two stages extraction falling a little bit then the large amount falling after. Visitors to the areas tried to evacuate from the scene after the first smaller slide occurred but unfortunately non all could clear the site. Leaving one woman stuck under the junk with onlookers some of...If you want to get a integral essay, collection it on our website: OrderCustomPaper.com

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