Geological succession in Herefordshire
The table below shows a generalised stratigraphy for Herefordshire. Heavy black lines represent uncomformable relationships between underlying and overlying rocks.
|
Quaternary
|
Holocene
|
Head Deposits
|
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|---|---|---|---|---|---|
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Suballuvial Deposits
|
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|
Devensian
|
Herefordshire Formation
|
Cradley Valley Formation
|
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|
Ham Green Member
|
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First Terrace
|
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|
Ipswichian
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Second Terrace
|
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|
Wolstonian
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Third Terrace
|
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|
Fourth Terrace
|
Colwall Member
|
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|
Hoxian
|
Cradley Silt Member
|
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|
Anglican
|
Starpit Formation
|
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|
Humber Formation
|
Mathon Formation
|
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|
Permian
|
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|
Warwickshire Group
|
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|
Carboniferous
|
Westphalian
|
Salop Formation
|
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|
Halesowen Formation
|
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|
Etruria Formation
|
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|
Coal Measures Group
|
Upper Coal Measures
|
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|
Middle Coal Measures
|
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Lower Coal Measures
|
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|
Cornbrook Sandstone Formation
|
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|
Carboniferous Limestone Supergroup
|
Pembroke Limestone Group
|
Cromhall Sandstone Formation
|
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|
Llanelly Formation
|
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|
Devonian
|
Upper Old Red Sandstone
|
Tintern Sandstone Formation
|
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|
Quartz Conglomerate Formation
|
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|
Devonian Limestone Group
|
Middlewood Sandstone Member
|
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|
Lower Old Red Sandstone
|
Woodbank Series
|
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|
Breconian
|
Brownstones Formation
|
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|
Sandy Haven Formation
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Townsend Tuffs Beds
|
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|
Silurian
|
Pridoli
|
Downton Group
|
Raglan Mudstone
|
Rushall Formation
|
|
|
Ledbury Formation
|
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Temeside Mudstone formation
|
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|
Downton Castle Sandstone
|
Ludlow Bone Bed
|
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|
Ludlow
|
Cefn Einion Formation
|
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|
Knucklas Formation
|
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|
Bailey Hill Formation
|
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|
Bringewood Formation
|
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|
Wenlock
|
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|
Coalbrookdale Formation
|
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|
Llandovery
|
Haugh Wood Formation
|
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|
Petalocrinus Limestone
|
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|
Pentamerus Beds
|
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|
Ordovician
|
Tremadoc
|
Habberley Shale Formation
|
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|
Shineton Shale Formation
|
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|
Bronsil Shale Formation
|
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|
Cambrian
|
Merioneth
|
White-Leaved Oak Shale Formation
|
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|
Comley
|
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|
Precambrian
|
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Reproduced with the permission of the British Geological Survey © NERC.
All Rights Reserved. Based upon information in the BGS
Lexicon and the BGS memoir ‘Geology of the country between Hereford and Leominster,
1:50,000 scale sheet 198‘, with the permission of the British Geological Survey.
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