The BGS Lexicon of Named Rock Units — Result Details

Taw River Terrace Deposits, 4 Member

Computer Code: TAW4 Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Stony,silty,sandy,clay
Definition of Lower Boundary: Unconformable on shales and sandstones of Late Devonian and Carboniferous age
Definition of Upper Boundary: Surface
Thickness: Unknown probably less than 5m
Geographical Limits: Taw Valley,Devon between Barnstaple and Lapford
Parent Unit: Taw Valley Formation (TAW)
Previous Name(s): River Terrace Deposits, 4 (Taw) (-3713)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Taw Valley and tributaries,Devonshire between Barnstaple and Lapford Freshney et al 1979 
Reference(s):
Edmonds, E A, Whittaker, A, and Williams, B J. 1985. Geology of the country around Ilfracombe and Barnstaple. Memoir of the British Geological Survey, Sheets 277 and 293 (England and Wales). 
Freshney, E C, Beer, K E and Wright, J E. 1979. Geology of the country around Chumleigh. Memoir of the Geological Survey of Great Britain, Sheet 309 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E309 E293