The BGS Lexicon of Named Rock Units — Result Details

Alternata Limestone Formation

Computer Code: ALT Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Woolstonian Substage (OS) — Woolstonian Substage (OS)
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: C.30M IN THE NORTH Caradoc area increasing to c.120m southwards.
Geographical Limits: none recorded or not applicable
Parent Unit: Not Applicable (-)
Previous Name(s): Alternata Limestone (*531)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W, Parkes, M A, Rushton, A W A and Woodcock, N H. 2000. A revised correlation of Ordovician rocks in the British Isles. Geological Society Special Report, No.24. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable