The Dorset Coast (and a little bit of Hampshire!). ~ a virtual field trip ~. I took this picture! . Where it is located. Day 1– The journey to Dorset! . Day 2 – Lyme Regis to Ringstead Bay. Groynes.
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~ a virtual field trip ~
I took this picture!
Day 2 – Lyme Regis to Ringstead Bay
An aerial photo of Lyme Regis Bay, showing ‘The Cobb’ (Harbour) and where the River Lim meets the sea
The coast is unstable because there are numerous situations where porous strata, principally the Chalk and Upper Greensand, lie over impermeable clays.
Black Ven between Lyme Regis and Charmouth. Upper Greensand lies over Lower Jurassic clays. The largest coastal mudflow in Europe took place here in the winter of 1958/9
The cliff top at Black Ven
Isle of Portland
West Bay (west)
Pebbles are ’sorted!’
The gradient of the beach can get very steep
When the island was uplifted, a series of massive fractures developed in the limestone.
Weymouth is a traditional seaside resort. It is protected by the Isle of Portland.
Portland Harbour (South of Weymouth)
Durdle Door ~ Lulworth Cove ~ Stair Hole ~ Warbarrow Bay ~ Tynham ~ Broad Bench ~ Kimmeridge ~ Winspit
Eventually the arch will collapse to leave a sea stack
Chalk Hills stop the cove eroding any further inland
Soft sand and clays
Small arch is only gap in the limestone.
Marine processes eroding further inland
Tyneham from Gadd Cliff
(Note the land use)
Waves shape the coastline.
(+ tidal pool!)
Looking out to see from Anvil Point
Undercuttingmeans stack will collapse
New cave forming
3 Major dune ridges
Younger dunes with Marram Grass
Sediment Build Up
Barton on Sea Landslides
Evidence of lanslides
Day 6 - Back to School