Type Group Other dolomitic sandstone Named by Rhys, G.H. Primary Mudstone Overlies Zechstein | Thickness up to 600m Country England Region North Sea Named for Bacton Underlies Haisborough Group | |
Sub-units Bunter Shale Formation, Bunter Sandstone Formation | ||
The Bacton Group is a Triassic lithostratigraphic group (a sequence of rock strata) beneath the southern part of the North Sea. The name is derived from Bacton on the Norfolk coast.These strata which are up to 600m thick are the offshore equivalent of the Roxby Formation and Sherwood Sandstone Group which occur in northeast England. The Group comprises a lower Bunter Shale Formation of red and brown to grey mudstones and an upper Bunter Sandstone Formation of dolomitic sandstones with mudstone interlayers.
References
Bacton Group Wikipedia(Text) CC BY-SA