The BGS Lexicon of Named Rock Units — Result Details

Harnage Shale Formation

Computer Code: HASH Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Dominantly olive-brown silty mudstones, with some sandstone beds.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: c.120 to 250m
Geographical Limits: none recorded or not applicable
Parent Unit: Not Applicable (-)
Previous Name(s): Harnage Shales (-2231)
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