GCR block - Alpine Structures of Southern England (ALP-STR-SE)

Alpine Structures of Southern England

Block Description

UK map showing distribution of GCR sites of GCR block ALP-STR-SE
Distribution of GCR sites of GCR block Alpine Structures of Southern England

In late Mesozoic times (c. 230–65 million years ago, Ma), that part of the Earth’s crust destined to become ‘Europe’ was affected by compressional forces from the south. The Tethys Ocean which had separated ‘Europe’ from ‘Africa’ through much of Mesozoic time began to narrow as its ocean crust was subducted, and this ocean is now represented by mere remnants of oceanic crust in the eastern Mediterranean area. The Alpine Orogeny is the result of the convergence and collision of ‘Africa’ with ‘Europe’, closing the western part of the Tethys Ocean during the Tertiary Sub-Era (c. 65 to 2 Ma). For further details of the palaeogeography, see PGN and TER-IGN.

The most obvious features of this episode of Earth history are the European Alps, the result of uplift and compression. In the UK, the effects of the Alpine Orogeny are less obvious than those of the Variscan, the major Alpine collision zone being some 1000 km south of Dorset. However, the knock-on effects of the Alpine Orogeny have formed large structures gently deforming the Mesozoic rocks of the south coast of England, such as the monocline affecting the Isle of Wight and southern Dorset.

Alpine effects in Britain were probably magnified as a result of the opening of the Atlantic Ocean in early Tertiary times. See TER-IGN.



Site List

Your selection found 10 GCR sites. Sites are sorted alphabetically by country, local authority and then by site name -
CodeNameCountryLocal AuthorityGrid RefGCR Site Account
2287SaltdeanEnglandBrighton and HoveTQ384018Not available
2288Ballard Point to Studland BayEnglandDorset CCSZ048813Not available
2289White Nothe to Bacon HoleEnglandDorset CCSY780807Not available
2290Fairlight Cove & HaddocksEnglandEast Sussex CCTQ880119Not available
2575Duncroft Farm PitEnglandHampshire CCSU475590Not available
2574Sandown Bay to Whitecliff BayEnglandIsle of WightSZ614854Not available
2567Walpole Bay Cliffs and Grenham Bay CliffsEnglandKent CCTR293699Not available
2573Seale Chalk PitEnglandSurreySU897482Not available
2569Dead Maid QuarryEnglandWiltshire CCST803324Not available
2570West Harnham Chalk PitEnglandWiltshire CCSU128287Not available
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