The Great Scar Limestone Group is a lithostratigraphical

term Term may refer to: * Terminology, or term, a noun or compound word used in a specific context, in particular: **Technical term, part of the specialized vocabulary of a particular field, specifically: ***Scientific terminology, terms used by scient ...

referring to a succession of generally

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

iferous rock

strata In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as ei ...

which occur in the

Pennines The Pennines (), also known as the Pennine Chain or Pennine Hills, are a range of uplands running between three regions of Northern England: North West England on the west, North East England and Yorkshire and the Humber on the east. Commo ...

in northern

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

and in the

Isle of Man ) , anthem = "O Land of Our Birth" , image = Isle of Man by Sentinel-2.jpg , image_map = Europe-Isle_of_Man.svg , mapsize = , map_alt = Location of the Isle of Man in Europe , map_caption = Location of the Isle of Man (green) in Europe ...

within the

Tournaisian The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma. It is preceded by the Famennian (the uppermost stage ...

and Visean

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of the

Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...

Period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

. It is contained within the Carboniferous Limestone Supergroup.

Basinal successions

Stainmore Trough

The sequence in the Stainmore Trough is thus (youngest at top): * Ashfell Sandstone (Arundian age) * Breakyneck Scar Limestone (Arundian age) * Red Hill Formation * Brownber Formation (Chadian age) * Scandal Beck Limestone (Chadian age) * Coldbeck Limestone (Chadian age) On the

Alston Block The Alston Block is a term used by geologists to describe the geological structure of the North Pennines of northern England and which forms a part of the Pennine Block & Basin Province which originated during the Carboniferous period. It is defin ...

corresponding to the

North Pennines The North Pennines is the northernmost section of the Pennine range of hills which runs north–south through northern England. It lies between Carlisle to the west and Darlington to the east. It is bounded to the north by the Tyne Valley and ...

, the sequence contains the Melmerby Scar Limestone Formation.

Orton area

In the

Orton Orton may refer to: Places England * Orton, Eden, Cumbria, a village and civil parish * Orton, Carlisle, Cumbria, a parish * Orton, Northamptonshire, a village and civil parish *Orton, Peterborough, Cambridgeshire * Orton, Staffordshire, a hamlet ...

area, the sequence is: * Knipe Scar Limestone * Potts Beck Limestone * Ashfell Limestone * Ashfell Sandstone * Breakyneck Scar Limestone * Brownber Formation * Scandal Beck Limestone * Coldbeck Limestone

Kendal, Skelsmergh and Deepslack outliers

In south Cumbria, the sequence is: * Urswick Limestone * Park Limestone * Dalton Formation (time-equivalent of Breakyneck Scar Limestone in Stainmore Trough) (Arundian age)

Isle of Man

On the

, the following sequence is identified in the Castletown area: * Knockcrushen Formation (wackestones, packstones and mudstones; of Holkerian age) * Derbyhaven Formation (packstones and mudstones with some mudstones and siltstones; of Arundian age) ** Skillicore Member ** Sandwick Member ** Turkeyland Member

References