Computer Code: |
CPR |
Preferred Map Code: |
CpR |
Status Code: |
Pending Upgrade |
Age range: |
Llandovery Epoch (SL)
— Llandovery Epoch (SL) |
Lithological Description: |
Interbedded thin turbidite sandstones and turbidite mudstones with burrowed hemipelagites. |
Definition of Lower Boundary: |
No definition. |
Definition of Upper Boundary: |
No definition. |
Thickness: |
No definition. |
Geographical Limits: |
Central Wales. |
Parent Unit: |
Not Entered (?)
|
Previous Name(s): |
Monograptus-Sedgwickii Grits [Obsolete Name and Code: Use CPR]
(-3321)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Crags on the southern slope of Clap Round, Rhayader. |
Reference(s): |
Lapworth, H, 1900. The Silurian sequence at Rhayader. Quarterly Journal of the Geological Society, Vol.56, p.67-137. |
Definition not published. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E179
|