Computer Code: |
TBU |
Preferred Map Code: |
TBu |
Status Code: |
Index Level |
Age range: |
Langsettian Substage (CA)
— Langsettian Substage (CA) |
Lithological Description: |
Coal. |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
none recorded or not applicable
|
Parent Unit: |
Pennine Lower Coal Measures Formation (PLCM)
|
Previous Name(s): |
Widdrington Five-Quarter Coal (Rothbury Area) [Obsolete Name and Code: Use TBU]
(-1220)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Scientific Department, Coal Survey. 1959. Durham Coalfield Seam Maps. Busty Seams. National Coal Board. |
Mills, D A C and Holliday, D W. 1998. Geology of the district around Newcastle upon Tyne, Gateshead and Consett. Memoir of the British Geological survey sheet 20 (England and Wales). |
Land, D H. 1974. Geology of the Tynemouth District (Explanation of one-inch Geological Sheet 15, New Series). Memoir of the British Geological Survey Sheet 20 (England and Wales). |
Scientific Department, Coal Survey. 1957. Northumberland Coalfield Seam Maps. Top Busty Seam. National Coal Board. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E010
E014
E015
E020
E026
E027
E032
E009
|