The BGS Lexicon of Named Rock Units — Result Details

Black Shale And Chert

Computer Code: HBHB Preferred Map Code: HBHB
Status Code: Index Level
Age range: Arenig Series (OR) — Abereiddian Stage (O2)
Lithological Description: none recorded or not applicable
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: 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):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable