The BGS Lexicon of Named Rock Units — Result Details

Unnamed Extrusive Rocks, Palaeogene

Computer Code: UEXG Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Not Entered (?) — Not Entered (?)
Lithological Description: The unit comprises thick successions of lavas, overwhelmingly of basaltic composition, with subordinate amounts of intermediate extrusive rocks and tuffs, and intercalated sedimentary rocks ranging from mudstone and lignite to conglomerate. Felsic extrusive rocks occur locally in Northern Ireland.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: The unit forms a number of outcrops, some very extensive, in north and central Northern Ireland and on the islands of Skye, Mull, Canna and Eigg in the Inner Hebrides and Ardnamurchan and Morvern on the mainland of Scotland. It is overlain only locally by younger bedrock units, notably in Northern Ireland.
Parent Unit: Not Applicable (-)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
none recorded or not applicable
Emeleus, C H, and Bell, B R. 2005. British Regional Geology: the Palaeogene volcanic districts of Scotland (4th edition). (Nottingham: British Geological Survey.) 
Mitchell, W I. 2004. The geology of Northern Ireland - our natural foundation (Second Edition). (Belfast: Geological Survey of Northern Ireland.) 
BGS 1:625 000 scale Bedrock Geology UK North and South geological maps (BGS 2007a, b) 
National Bedrock Fence Diagram of the United Kingdom - UK3D_v2015. doi:10.5285/ 54057516-dec9-48b7-a717-0c341a3846dc 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable