| Computer Code: |
YAWO |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Ediacaran Period (AD)
— Ediacaran Period (AD) |
| Lithological Description: |
Pale green laminated or massive siltstones, thinly laminated mudstones and fine-grained, generally massive, sandstones. |
| Definition of Lower Boundary: |
Unknown, contacts generally faulted. |
| Definition of Upper Boundary: |
Unknown in detail; unconformably overlain by the Dolyhir Limestone of Wenlock age. |
| Thickness: |
Unknown - generally faulted contacts. |
| Geographical Limits: |
Welsh borderlands. Old Radnor. |
| Parent Unit: |
Stretton Group (YST)
|
| Previous Name(s): |
Yat Wood Formation [Obsolete Code: Use YAWO]
(YTW)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Southern part of Gore Quarry. Woodcock, N H and Pauley, J C. 1989. |
| Reference Section |
Main part of the active Doylhir Quarry. Woodcock, N H and Pauley, J C. 1989. |
| Reference(s): |
| Woodcock, N H. 2000. Dolyhir and Strinds Quarries. 114-118 in Carney, J N (editor), Precambrian rocks of England and Wales. Geological Conservation Review Series No 20. [Peterborough: Joint Nature Conservation Committee.] |
| Woodcock, N H and Pauley, J C. 1989. The Longmyndian rocks of the Old Radnor Inlier, Welsh Borderland. Geological Journal, Vol.24, 113-120. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
