Montrose Group

The Montrose Group is a stratigraphic group, a set of geological rock strata of Paleocene age, found beneath the North Sea and locally onshore in southeastern England.^[1] It was originally described from offshore exploration wells in the North Sea. The Thanet Formation in the London Basin has more recently been assigned to the group.^[2]

Montrose Group
Stratigraphic range: Paleocene
Type	Group
Sub-units	Lista Formation, Maureen Formation & Thanet Formation
Underlies	Moray Group (North Sea) Lambeth Group (SE England)
Overlies	Chalk Group
Thickness	up to 600 m (2,000 ft)
Lithology
Primary	Clay
Other	Silt, sand, marl
Location
Region	North Sea and onshore southeastern England
Country	United Kingdom
Type section
Named for	Montrose, Angus