The BGS Lexicon of Named Rock Units — Result Details

Abbrook Clay and Sand Member

Computer Code: AB Preferred Map Code: notEntered
Status Code: Full, pending ratification
Age range: Eocene Epoch (GE) — Oligocene Epoch (GO)
Lithological Description: Non-carbonaceous, high silica clays and sands, generally grey, but with subordinate brown clays, sometimes silty. Clay breccias occur locally. Rare lignites.
Definition of Lower Boundary: Rests conformably on the Lappathorn Member which is pink in colour and contains ironstone spherules.
Definition of Upper Boundary: Passes up into the Southacre Clay and Lignite Member, which contains a significant amount of lignite.
Thickness: 50 m.
Geographical Limits: Bovey Basin, Devon.
Parent Unit: Bovey Formation (BOF)
Previous Name(s): ABBROOK CLAY AND SAND (AB)
Alternative Name(s): none recorded or not applicable
none recorded or not applicable
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: