Computer Code: |
YTW |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Ediacaran Period (AD)
— Ediacaran Period (AD) |
Lithological Description: |
[Duplicate: use YAWO]
Pale green, laminated or massive siltstones, thinly laminated mudstones, and fine-grained, generally massive sandstones. |
Definition of Lower Boundary: |
Unknown -the contact is generally faulted. |
Definition of Upper Boundary: |
Unknown in general, although it is overlain unconformably by the Dolyhir Limestone of Wenlock age. |
Thickness: |
Unknown. |
Geographical Limits: |
none recorded or not applicable
|
Parent Unit: |
none recorded or not applicable
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
Yat Wood Formation
|
Stratotypes: |
none recorded or not applicable |
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.] |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |