Computer Code: |
EY |
Preferred Map Code: |
EY |
Status Code: |
Pending Upgrade |
Age range: |
Ludlow Epoch (SU)
— Ludlow Epoch (SU) |
Lithological Description: |
Disturbed beds, striped silty mudstones and subordinate sandstones with lateral facies changes. |
Definition of Lower Boundary: |
Base succeeds ribbon banded mudstones of the Nantglyn Flags Formation. |
Definition of Upper Boundary: |
Unconformably overlain by Carboniferous Limestone. |
Thickness: |
>1750 metres. |
Geographical Limits: |
Not defined. |
Parent Unit: |
Not Applicable (-)
|
Previous Name(s): |
Elwy Group [Obsolete Name and Code: Use EY]
(*194)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Warren, P T, Price, D, Nutt, M J C and Smith, E G. 1984. Geology of the country around Rhyl and Denbigh. Memoir for 1:50 000 geological sheets 95 and 107 and parts of sheets 94 and 106. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E120
E094
E107
E108
E095
E137
|