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 |