Spilsby Sandstone/Kimmeridge Clay and Ampthill Clay formations separation map

Area where aquifer and shale/clay are present	East Lincolnshire
Thickness of intervening strata	0 m
Lithology of intervening strata	No intervening strata; the units are contiguous
Other major aquifers in the area	Chalk; Lower Greensand (both above) Oolites; Triassic sandstone; Magnesian limestone; Carboniferous limestone (all below)
Other shales or clays in the area	Kellaways Formation; Oxford Clay Formation; Osgodby Formation; Lias Group; Bowland Shale Formation; Craven Group (all below)
Aquifer map	Spilsby Sandstone Formation principal aquifer
Shale/clay map	Kimmeridge Clay and Ampthill Clay formations shale/clay unit

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