The BGS Lexicon of Named Rock Units — Result Details

Baligill Limestone Member

Computer Code: BGLM Preferred Map Code: notEntered
Status Code: Full
Age range: Eifelian Age (DI) — Eifelian Age (DI)
Lithological Description: Laminated and bituminous microsparitic limestone interbedded with medium-grained sandstone and bituminous siltstone and mudstone.
Definition of Lower Boundary: The lowest of the sequence of 3 thick [>1m] carbonate laminate [limestones] developed in the Bighouse Formation.
Definition of Upper Boundary: The uppermost of the sequence of 3 thick [>1m] carbonate laminates [limestones] developed in the Bighouse Formation.
Thickness: 30m
Geographical Limits: Onshore and immediately offshore of the Dounreay area, Caithness, Northern Scotland.
Parent Unit: Bighouse Formation (BIGH)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Baligill limestone quarry. 
Reference Section  East side of Melvich Bay, north of Bighouse. 
Reference(s):
British Geological Survey. (In preparation, to be published in 2005). Bedrock geology. Scotland Special Sheet (Dounreay).1:25 000. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable