The BGS Lexicon of Named Rock Units — Result Details

Aber Pensidian Mudstone Member

Computer Code: APMU Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Actonian Substage (OT) — Onnian Substage (ON)
Lithological Description: Dark grey interbedded turbiditic and laminated hemipelagic mudstones.
Definition of Lower Boundary: Conformable with the sandstones of the Dinas Island Formation.
Definition of Upper Boundary: Conformable with the sandstones of the Dinas Island Formation.
Thickness: To 60m
Geographical Limits: none recorded or not applicable
Parent Unit: Dinas Island Formation (DIIS)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Davies, J R, Waters, R A, Wilby P R, Williams, M and Wilson, D. 2003. Geology of the Cardigan and Dinas Island district - a brief explanation of the geological map. Sheet explanation of the British Geological Survey. 1: 50 000 Sheet 193. [Keyworth, Nottingham: British Geological Survey.] 26pp. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E193