The BGS Lexicon of Named Rock Units — Result Details

Backet'S Copse Gravel Member

Computer Code: BACKC Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Principally clayey sand and gravel with sand beds of limited lateral extent.
Definition of Lower Boundary: Rests on the eroded surface of bedrock.
Definition of Upper Boundary: Present day land surface.
Thickness: The mapped extent of the deposits suggest that the member is between 2m and 5m thick.
Geographical Limits: Limited to two mapped outcrops within the Western Yar Valley on the eastern flank of the valley, to the east of Freshwater.
Parent Unit: Western Yar River Formation (WYAR)
Previous Name(s): GRAVEL TERRACE
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Two outcrops in the vicinity of Backet's Copse, Freshwater on the eastern flank of the Western Yar Valley. 
Reference(s):
BRITISH GEOLOGICAL SURVEY, 2013. Isle of Wight. England and Wales Special Sheet incorporating parts of sheets 330,331,344,345. Bedrock and Superficial Deposits. 1:50 000. (Keyworth, Nottingham: British Geological Survey). 
BRITISH GEOLOGICAL SURVEY, 1976. Isle of Wight. England and Wales Special Sheet incorporating parts of sheets 330,331,344,345. Bedrock and Drift 1:50 000. (Keyworth, Nottingham: British Geological Survey). 
WHITE, H J O, 1921. A short account of the geology of the Isle of Wight. Memoir of the Geological Survey of Great Britain, (1994 reprint). 
Hopson, P M, and Farrant A R. 2014. Geology of the Isle of Wight a brief explanation of the Isle of Wight Special Geological Map Sheet. Sheet Explanation of the British Geological Survey. Parts of 1:50 0000 Sheets 330 (Lymington), 331 (Portsmouth), 344 (Chale) and 345 (Ventnor) (England and Wales) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable