The BGS Lexicon of Named Rock Units — Result Details

Taw River Terrace Deposits, members 1 and 2 (undifferentiated)

Computer Code: 1TAW2 Preferred Map Code: notEntered
Status Code: Full
Age range: Late Pleistocene (QPL) — Late Pleistocene (QPL)
Lithological Description: Stony, sandy silty clay. Trace tin ore (cassiterite).
Definition of Lower Boundary: Unconformable on bedrock shales and sandstones of Upper Devonian and Lower Carboniferous age.
Definition of Upper Boundary: Surface.
Thickness: Unknown.
Geographical Limits: Valley of the River Taw, near Barnstaple, Devonshire.
Parent Unit: Taw Valley Formation (TAW)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Freshney et al. (1979). 
Reference(s):
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). 
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). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable