The BGS Lexicon of Named Rock Units — Result Details
Taw River Terrace Deposits, 7 Member
Computer Code: | TAW7 | Preferred Map Code: | notEntered |
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Status Code: | Full | ||
Age range: | Late Pleistocene (QPL) — Late Pleistocene (QPL) | ||
Lithological Description: | Stony, sandy, silty, clay. | ||
Definition of Lower Boundary: | Unconformable on bedrock shales and sandstones of Late Carboniferous, and conglomerates of Permian age. | ||
Definition of Upper Boundary: | Surface. | ||
Thickness: | Probably less than 5 m. | ||
Geographical Limits: | Valleys of the River Taw and tributaries between Umberleigh and northern Dartmoor, Devon. | ||
Parent Unit: | Taw Valley Formation (TAW) | ||
Previous Name(s): | River Terrace Deposits, 7 (Taw)
(-560)
Terrace 3 on Okehamptonsheet (324) [Obsolete Name and Code: Use TAW7] (-3715) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Area | Taw Valley and valley south of North Tawton between North Tawton and Taw Green. Edmonds et al., 1968. | ||
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, Wright, J E, Beer, K E, Hawkes, J R, Fenning, P J, Freshney, E C, Lovelock, P E R, McKeown, M C, Ramsbottom, W H C and Williams, M. 1968. Geology of the country around Okehampton. Memoir of the Geological Survey of Great Britain, Sheet 324 (England and Wales). | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E309 E324 |