Computer Code: |
HAL |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Caradoc Series (O4)
— Caradoc Series (O4) |
Lithological Description: |
[Obsolete: use ALT] |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
30 to 120m |
Geographical Limits: |
The Caradoc area, Welsh Borders. |
Parent Unit: |
none recorded or not applicable
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
Alternata Limestone [Obsolete: use ALT]
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W, Parkes, M A, Rushton, A W A and Woodcock, N H. 2000. A revised correlation of Ordovician rocks in the British Isles. Geological Society Special Report, No.24. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |