| Computer Code: |
LDVY |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Llandovery Epoch (SL)
— Llandovery Epoch (SL) |
| Lithological Description: |
In England and Wales it mainly comprises formations that are dominated by mudstone, but also contains some formations in which sandstone is dominant. In the Southern Uplands of Scotland and Northern Ireland sandstone rich formations dominate. |
| 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: |
The unit is widely exposed at surface in the central part of Wales as well as the English Lake District, the Southern Uplands of Scotland and Northern Ireland. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Stone P, Millward, D, Young, B, Clarke, S M, McCormac, M and Lawrence, D J D. 2010. British Regional Geology: Northern England (fifth edition) (Keyworth, Nottingham: British Geological Survey). |
| Stone, P, McMillan, A.A., Floyd, J.D., Barnes, R.P. and Phillips, E.R. 2012. British Regional Geology: South of Scotland (fourth edition). (Keyworth: British Geological Survey) |
| Howells, M.F. 2007. British Regional Geology: Wales (Keyworth, Nottingham: British Geological Survey |
| British Geological Survey. 2007. Bedrock Geology UK North. 1:625 000. (Keyworth, Nottingham: British Geological Survey.) |
| British Geological Survey. 2007. Bedrock Geology UK South. 1:625 000. (Keyworth, Nottingham: British Geological Survey.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
