Gloucestershire Geology Trust
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Gloucestershire Solid Geology Interactive Stratigraphic Table

This is an interactive stratigraphic table of the solid geology found in Gloucestershire, designed to help you find out more about specific geological formations in the county.

Clicking on and of the names in the FORMATION column, will take you to a page that describes that formation, its lithology, its upper and lower boundaries and examples of sites where it is found.

[DISCLAIMER -
Listing of sites on any of these pages does not imply any right of access to them. It is the individuals responsibility to ensure that they have right of access to any site at any time, and Gloucestershire Geology Trust take no responsibility for any tresspass.]


PERIOD GROUP FORMATION

MEMBER
(or local names)

Jurassic Ancholme Oxford Clay Peterborough
Kellaways Kellaways Sand
Kellaways Clay
Great Oolite Cornbrash  
Forest Marble  
White Limestone Signet
Ardley
Shipton
Hampen  
Taynton Limestone  
Througham Tilestone  
Fuller's Earth Eyford
Dodington Ash Rock
Minchinhampton Beds
Fullers Earth Clay
Chipping Norton Limestone  
Inferior Oolite Salperton Limestone Clypeus Grit
Upper Trigonia Grit
Aston Limestone Rolling Bank
Notgrove
Gryphite Grit
Lwr Trigonia Grit
Birdlip Limestone Harford
Scottsquar
Cleeve Cloud
Crickley
Leckhampton
Lias Bridport Sand  
Whitby Mudstone
Marlstone Rock
Dyrham
Charmouth Mudstone
Blue Lias
Triassic Penarth Lilstock  
Cotham
Westbury  
Mercia Mudstone Blue Anchor
Branscombe Mudstone
Arden Sandstone
Sidmouth Mudstone
Sherwood Sandstone Bromsgrove Sandstone
Permian   Bridgnorth Sandstone  
  Haffield Breccia  
 
Carboniferous
Warwickshire Grovesend  
Pennant Sandstone  
Trenchard  
Carboniferous Limestone Cromhall Sandstone (Upper Drybrook Sandstone)
(Drybrook Limestone)
(Lower Drybrook Sandstone)
Llanelly (Whitehead Limestone)
Gully Oolite (Crease Limestone)
Barry Harbour Limestone (Lower Dolomite)
Avon Group (Lower Limestone Shale)
Devonian Upper Old Red Sandstone Tintern Sandstone  
Quartz Conglomerate
Lower Old Red Sandstone Brownstones  
St Maughan's
Raglan Mudstone Bishops Frome Limestone
Silurian  
Downton Castle Sandstone Clifford's Mesne Beds
Upper Ludlow Shales Ludlow Bone Bed  
Whitcliffe
Lientwardine  
  Aymestry Limestone
Lower Ludlow Shales Bringewood
Elton
  Much Wenlock Limestone
Coalbrookdale
Woolhope Limestone
May Hill Sandstone / Damery & Tortworth Beds Yartelton / Tortworth Beds
Upper Trap
Huntley Hill / Damery Beds
Huntley Quarry Beds / Lower Trap
Ordovician
  Micklewood Beds

Breadstone Shale
Bronsil Shale
Cambrian   White-leaved Oak Shale  
Hollybush Sandstone
Malvern Quartzite
Precambrian   Malverns Complex  



GT AMHGP Cots GP oolithica

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