Mike Horne FGS
Lithostratigraphy of the Hull Area
|
Group |
Formation |
Member |
Old names |
|
Chalk Group |
Flamborough Chalk Formation |
Upper Chalk |
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|
Burnham Chalk Formation |
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Welton Chalk Formation
|
Middle Chalk |
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|
Black Band Member |
Plenus Marls |
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|
Unconformity |
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|
Ferriby Chalk Formation |
Lower Chalk
|
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|
unconformity |
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|
Hunstanton Chalk Member |
Red Chalk |
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|
Lower Cretaceous |
Carstone Fm. |
Carstone |
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|
Unconformity |
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|
Ancholme Clay Group |
Ancholme Clays |
Kimmeridge Clay (at South Ferriby) |
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|
Ampthill/Oxford Clay |
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|
Brantingham Fm. |
Corallian Limestone |
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|
Kellaways Beds Fm. |
Kellaways Rock Member |
Kellaways Rock |
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|
Kellaways Sand Member |
Kellaways Sands |
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|
Kellaways Clay Member |
Kellaways Clay |
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|
Redborne Group |
Cornbarsh Fm. |
Upper and Lower Cornbrash. |
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|
Glentham Fm.
|
3 Members |
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|
Thorncroft Sands Member |
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|
Lincolnshire Limestone Fm. |
Cave Oolite Member |
Cave Oolite |
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Santon Oolite Member |
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|
Raventhorpe Beds Member (including the Ellerker Limestone) |
(Hydraulic Limestone) |
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|
unconformity |
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|
Lias Group |
Coleby Mudstones Fm. |
Includes the Pecten Ironstone Member and Marlstone Rock Member |
Middle Lias |
|
Scunthorpe Mudstones Fm. |
Includes Frodingham Ironstone Member |
Lower Lias |
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|
Penarth Group |
Lilstock Fm. |
Cotham Member
|
Rhaetic |
|
Westbury Fm. |
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|
Mercia Mudustone Gp. |
Keuper Marl |
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|
Sherwood Sandstone Gp. |
Keuper Sandstone and Bunter Sandstone |
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Based on "Geology of the country around Kingston upon Hull and Brigg" by British Geological Survey and own observations.
Strata in blue are missing in the area.
copyright Mike Horne - October 2016