Stockingford Shale Group

Stockingford Shale Group
Stratigraphic range: Furongian Epoch, Cambrian to Tremadocian, Ordovician
Type	Group
Sub-units	Merevale Shales, Monks Park Shale, Moor Wood Sandstone, Outwoods Shale, Mancetter Shale, Abbey Shale and Purley Shales formations
Overlies	Harthill Sandstone Formation
Thickness	about 775m
Lithology
Primary	mudstones
Other	sandstones
Location
Region	Midlands
Country	England
Type section
Named for	Stockingford

The Stockingford Shale Group is a Cambrian to Ordovician lithostratigraphic group (a sequence of rock strata) in the English Midlands. These rocks are found northwestwards from Bedworth. The name is derived from Stockingford, a suburb of Nuneaton in Warwickshire. This rock succession was formerly known as the Stockingford Shales and ascribed to the two British regional stratigraphic units, the Comley and Tremadoc series, though these terms are now obsolete. Overlying the Harthill Sandstone Formation, the Group comprises around 775 metres thickness of mudstones with some subordinate sandstones. Some burrows and bioturbation are present. The uppermost unit is the early Ordovician Merevale Shale Formation, a mudstone with some dolomitic beds. Beneath this in descending order (increasing age) are the Monks Park Shale, Moor Wood Sandstone, Outwoods Shale, Mancetter Shale, Abbey Shale and Purley Shales formations, the last being of Comley age in its lower parts.

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