The Geology of Britain is renowned for its diversity.
|See Wiki for the index|
As a result of our eventful geological history we have a rich variety of landscapes and seascapes.
|Dogger Bank ringed in red|
Storegga Slides, off the Norwegian coast – 8,500 years ago these underwater slides had a huge impact on Norway, Scotland, our North Sea coasts ... and particularly on the North Sea itself ...
... it is thought finally swamping Dogger Bank, (a large sandbank in a shallow area of the North Sea) thus separating Britain from the European Continent ...
|Great Glen fault|
The Great Glen Fault formed in the mountain building tectonic movement era ... stretches sinistrally across Scotland ... through Ireland, and on into North America ... being aligned at one stage with the Cabot Fault. It is mostly inactive today ...
Britain’s rocks are of almost all geological ages from the Archean Eon of 2,500 million years ago or older ... to the younger rocks of the Cretaceous period (145 – 66 million years ago) found down here in Sussex – the crumbling cranky chalk cliffs – that are so good for champagne and wine!
Seismogaphical research shows that the crust of the Earth below Great Britain is from 25 to 35 km (17 – 22 miles) thick. The oldest rocks are found at the surface in north-west Scotland and are more than half as old as the planet!
|Wooden groynes at Eastbourne protecting|
the beach from the wave action as it rounds
Groynes are a Victorian engineering invention to protect the coast against long-shore drift ... protecting the beach from the wave flow, as here in Eastbourne.
G for “Grippers” are those intertidal creatures that have responded to the rocky seashores with the most unforgiving habitat, as waves pound unyielding stone.
These are the champion Grippers - the supreme rock clingers!
Gripping feet: starfish and sea-urchins have hundreds of tiny “tube feet”, while limpets and sea-snails have a single large suction foot.
Gripping by a stalk: Goose barnacles ... once people believed these barnacles hatched into geese. Their tough stalks can grip any floating debris and live on ... at sea, or in the inter-tidal zone as here as their shore relatives.
And this picture of the Scourie dyke is just an amazing photo of gneiss, the dyke, and lichen of varying ages ... I had to include it!
That is G for ginormous Geology, granite Gneiss, gravel embedded Groynes, grouping Grippers ... grappling for Aspects of British Coasts ...
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