The BGS Lexicon of Named Rock Units — Result Details

Hyner Mudstone Formation And Trusham Mudstone Formation (Undifferentiated)

Computer Code: HYTM Preferred Map Code: notEntered
Status Code: Index Level
Age range: Famennian Age (DA) — Courceyan Substage (CF)
Lithological Description: Mudstone with subsidiary calcareous mudstone and siltstone.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: none recorded or not applicable
Parent Unit: none recorded or not applicable
Previous Name(s): Hyner Shale Formation and Trusham Shale Formation (Undifferentiated) [Obsolete Name and Code: Use HYTM] (-3486)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable