The BGS Lexicon of Named Rock Units — Result Details

Yat Wood Formation [Obsolete Code: Use YAWO]

Computer Code: YTW Preferred Map Code: notEntered
Status Code: Index Level
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 -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: Not Entered (?)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
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