• Source: Great Scar Limestone Group

The Great Scar Limestone Group is a lithostratigraphical term referring to a succession of generally fossiliferous rock strata which occur in the Pennines in northern England and in the Isle of Man within the Tournaisian and Visean stages of the Carboniferous Period.
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 corresponding to the North Pennines, the sequence contains the Melmerby Scar Limestone Formation.




= Orton area

=
In the Orton 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 Isle of Man, 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




See also



List of fossiliferous stratigraphic units in England




References

Kata Kunci Pencarian:

• Great Scar Limestone Group
• Knipe Scar Limestone
• Geology of County Durham
• Geology of Yorkshire Dales National Park
• Urswick Limestone
• Carboniferous Limestone
• Geology of Lancashire
• Geology of the Isle of Man
• Limestone pavement
• Mossdale Caverns