Oolites/Lias Group separation map

Area where aquifer and shale/clay are present	From north of the Humber to Dorset South-east England Note that for the purposes of drafting this separation map the maximum depth of the Oolites aquifer is taken to be 400 mbgl based on the recommendations in the UK TAG report. More information about this can be found in the methods section
Thickness of intervening strata	0 m
Lithology of intervening strata	None; the two units are contiguous
Other major aquifers in the area	Crag; Chalk; Lower Greensand; Spilsby Sandstone; Corallian limestone (all above) Triassic sandstone; Magnesian limestone; Permian sandstone; Carboniferous limestone (all below)
Other shales or clays in the area	Kimmeridge Clay Formation; Ampthill Clay Formation; Kellaways Formation; Oxford Clay Formation; Osgodby Formation (all above) Bowland Shale Formation; Craven Group (both below)
Aquifer map	Oolites principal aquifer
Shale/clay map	Lias Group shale/clay unit

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