The BGS Lexicon of Named Rock Units — Result Details

Kenfig Formation

Computer Code: KNFIG Preferred Map Code: notEntered
Status Code: Full
Age range: Holocene Epoch (QH) — Holocene Epoch (QH)
Lithological Description: Stratified, unconsolidated, fine- to medium-grained quartz sand with shell debris.
Definition of Lower Boundary: Laterally variable at type locality; conformable Flandrian deposits in the vicinity of Kenfig Pool (Cheney et al, 2000) and elsewhere unconformable on bedrock or superficial deposits.
Definition of Upper Boundary: Generally the ground surface; locally contact with overlying Flandrian deposits.
Thickness: Exceptionally reaches 10m, but generally in accordance with the topographic expression of dune forms.
Geographical Limits: Coastal embayments on the north shore of the Bristol Channel, particularly in Swansea Bay, Carmarthen Bay and Freshwater Bay.
Parent Unit: British Coastal Deposits Group (COAS)
Previous Name(s): Blown Sand (BSA)
Alternative Name(s): none recorded or not applicable
Type Area  Kenfig Burrows. Dune complex developed in response to exposed beach deposits being blown inland by prevailing winds. Wilson et al. 1990 
Wilson, D, Davies, J R, Fletcher, C J N, and Smith, M. 1990. The Geology of the South Wales Coalfield, part VI the Country around Bridgend. Memoir of the British Geological Survey, 1:50 000 Geological Sheets 261 and 262 (England and Wales). 
Bowen, D Q, 1999. Wales. Chapter 7 in Bowen, D Q (Editor), A revised correlation of Quaternary deposits in the British Isles. Geological Society of London Special Report, No.23. 
Cheney, C S, Davies, J R, Hughes, A G, Darling, W G and Macdonald, D M J. 2000. An assessment of the possible effects of dewatering proposed extensions to quarries in the South Cornelly area, South Wales. British Geological Survey Technical Report WD/00/21C. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable