| Craven Group | |
| Type: | Group |
| Age: | Chadian-Yeadonian sub-stages of Carboniferous period |
| Prilithology: | mudstone, limestone |
| Otherlithology: | sandstone, siltstone, chert |
| Namedfor: | Craven district |
| Region: | northern England, English Midlands and northeast Wales |
| Subunits: | Hodder Mudstone, Hodderense Limestone, Pendleside Limestone, Bowland Shale formations |
| Underlies: | Millstone Grit Group |
| Overlies: | Bowland High Group, Clwyd Limestone Group |
| Thickness: | up to 5000m |
The Craven Group is a lithostratigraphical term referring to the succession of mudstone and limestone rock strata which occur in certain parts of northern and central England and northeast Wales in the United Kingdom within the Chadian to Yeadonian sub-Stages of the Carboniferous Period. Other lithologies including sandstones, siltstones and chert occur within the group.[1] The Group is subdivided into numerous formations, some of which previously enjoyed group status. In stratigraphic order (uppermost/youngest at top), these are:
The Craven Group unconformably overlies the Bowland High Group and elsewhere the Clwyd Limestone Group. It is succeeded (overlain) by the Millstone Grit Group[2]