Holland-on-Sea Cliff

Holland-on-Sea Cliff
Site of Special Scientific Interest

Area of Search	Essex
Grid reference	TM 211167
Interest	Geological
Area	0.1 hectares
Notification	1992
Location map	Magic Map

Holland-on-Sea Cliff is a 0.1 hectare geological Site of Special Scientific Interest in Holland-on-Sea, north-west of Clacton-on-Sea in Essex.^[1]^[2] It is a Geological Conservation Review site.^[3]

This site is of great importance in understanding the evolution of the London Basin, and it is the type site for two different gravels. The "Lower Holland Gravel" was the final terrace laid down by the River Thames before the river was diverted south during the Anglian glaciation around 450,000 years ago. The "Upper Thames Gravel" was deposited when the Thames was blocked by ice and not reaching the area. As the terraces can be attributed to the Anglian glaciation, they provide a fixed point for correlation other Anglian sequences in southern Britain and on the Continent.^[1]

The site is a short stretch of the slope between the Esplanade and the Promenade, opposite Haven Avenue. No geology is visible.

References

1 2 "Holland-on-Sea Cliff citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 9 June 2016.
↑ "Map of Holland-on-Sea Cliff". Sites of Special Scientific Interest. Natural England. Retrieved 9 June 2016.
↑ "Holland-on-Sea Cliff (Quaternary of the Thames)". Joint Nature Conservation Committee. Retrieved 28 May 2016.

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Coordinates: 51°48′14″N 1°12′22″E / 51.804°N 1.206°E / 51.804; 1.206

Sites of Special Scientific Interest in Essex

Biological	Abberton Reservoir Ashdon Meadows Basildon Meadows Belcher's and Broadfield Woods Benfleet and Southend Marshes Blackwater Estuary Blake's Wood & Lingwood Common Bovingdon Hall Woods Bullock Wood Canvey Wick Cattawade Marshes Chalkney Wood Colne Estuary The Coppice, Kelvedon Hatch Cornmill Stream and Old River Lea Crouch and Roach Estuaries Curtismill Green Danbury Common Debden Water Dengie Elsenham Woods Epping Forest Foulness Garnetts Wood and Barnston Lays Garrold's Meadow Glemsford Pits Grays Thurrock Chalk Pit Great Wood and Dodd's Grove Hainault Forest Hales and Shadwell Woods Hamford Water Hangman's Wood and Deneholes Hanningfield Reservoir Harlow Woods Hatfield Forest High Wood, Dunmow Hockley Woods Holehaven Creek Holland Haven Marshes Hunsdon Mead Inner Thames Marshes Little Hallingbury Marsh Mill Meadows Mucking Flats and Marshes Norsey Wood Nunn Wood Pitsea Marsh Quendon Wood Riddles Wood Roding Valley Meadows Roman River Sandbeach Meadows Stour and Copperas Woods, Ramsey Stour Estuary Thorndon Park Thrift Wood, Woodham Ferrers Thundersley Great Common Tiptree Heath Turnford and Cheshunt Pits Upper Colne Marshes Vange and Fobbing Marshes Waltham Abbey Weeleyhall Wood West Thurrock Lagoon and Marshes West Wood, Little Sampford Woodham Walter Common

Geological	Ardleigh Gravel Pit Clacton Cliffs and Foreshore The Cliff, Burnham-on-Crouch Colne Estuary Dengie Globe Pit Goldsands Road Pit Hall's Quarry Harwich Foreshore Holland-on-Sea Cliff Lion Pit Little Oakley Channel Deposit Lofts Farm Pit Maldon Cutting Marks Tey Brickpit The Naze Newney Green Pit Purfleet Chalk Pits Purfleet Road, Aveley River Ter St Osyth Pit Stour Estuary Wivenhoe Gravel Pit

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