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
Stratotypes:
Type Area  Kenfig Burrows. Dune complex developed in response to exposed beach deposits being blown inland by prevailing winds. Wilson et al. 1990 
Reference(s):
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable