The BGS Lexicon of Named Rock Units — Result Details

Mull Of Logan Formation

Computer Code: MLN Preferred Map Code: MLN
Status Code: Pending Upgrade
Age range: Llandovery Epoch (SL) — Llandovery Epoch (SL)
Lithological Description: Medium to thick-bedded greywacke and silty mudstone including very thickly bedded massive sandstone sequences and a unit of 'blocky arenite'.
Definition of Lower Boundary: Faulted.
Definition of Upper Boundary: Faulted.
Thickness: Not defined.
Geographical Limits: Not defined.
Parent Unit: Gala Group (GALA)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Port Logan Bay to Drumbreddon Bay, Scotland Sheets 1 and 3. 
Reference(s):
McCurry, J. 1990. The geology of the Rhinns of Galloway, south west Scotland, south of the Portayew area. British Geological Survey, Onshore Geology Series, Technical Report, WA/90/66. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S003 S001