The BGS Lexicon of Named Rock Units — Result Details

Glynch Valley Formation

Computer Code: GLVA Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Sand and gravel, interpreted as terrace deposits, or silty clay interpreted as alluvium deposits.
Definition of Lower Boundary: Generally where the fluvial deposits rest on bedrock or older superficial deposits.
Definition of Upper Boundary: Present day river terrace or upper surface of alluvium.
Thickness: Variable, up to 5 m.
Geographical Limits: The formation consists of fluviatile members related to a river draining the present valleys of the Leadon and its tributaries, including the Glynch, Ell and Moor End brooks in Gloucestershire and Worcestershire.
Parent Unit: Severn and Avon Catchments Subgroup (SACA)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Area  The valley of the River Leadon and its tributaries, including the Glynch, Ell and Moor End Brooks, Gloucestershire and Worcestershire. 
Worssam, B C, Ellison, R A and Moorlock, B S P. 1989. Geology of the country around Tewkesbury. Memoir of the British Geological Survey, Sheet 216 (England and Wales). 
Maddy, D. 1999. English Midlands Chapter 3 in Bowen, D Q (Editor), A revised correlation of the Quaternary deposits in the British Isles. Geological Society Special Report, No.23. 
McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable