| Computer Code: |
TYBM |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Caradoc Series (O4)
— Caradoc Series (O4) |
| Lithological Description: |
Interbedded grey turbiditic mudstones and laminated hemipelagic mudstones. |
| Definition of Lower Boundary: |
Conformable with sandstones of the Dinas Island Formation. |
| Definition of Upper Boundary: |
Conformable with sandstones of the Dinas Island Formation. |
| Thickness: |
25 to 30m |
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Dinas Island Formation (DIIS)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Davies, J R, Waters, R A, Wilby P R, Williams, M, and Wilson, D. 2003. Geology of the Cardigan and Dinas Island district - a brief explanation of the geological map. Sheet explanation of the British Geological Survey. 1: 50 000 Sheet 193. (Keyworth, Nottingham: British Geological Survey.) 26 pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E193
|
