Editing Gault (section)

==Distribution==
It is found in exposure on the south side of the [[North Downs]] and the north side of the [[South Downs]]. It is also to be found beneath the [[escarpment|scarp]] of the [[Berkshire Downs]], in the [[Vale of White Horse]], in [[Oxfordshire]], England, and on the [[Isle of Wight]] where it is known as Blue Slipper.<ref name="IOWBlueSlipper">{{cite news |url=http://www.iwcp.co.uk/news/news/men-rescued-from-mud-31920.aspx |title=Men rescued from mud |first=Martin |last=Neville |newspaper=[[Isle of Wight County Press]] |date=23 March 2010 |access-date=6 April 2016 |archive-date=17 April 2016 |archive-url=https://web.archive.org/web/20160417100236/http://www.iwcp.co.uk/news/news/men-rescued-from-mud-31920.aspx |url-status=dead }}</ref> Gault underlies the chalk beneath the [[London Basin]], generally overlying eroded rocks of [[Jurassic]] and [[Devonian]] age; lower gault is present only below the outer parts of the basin and is absent under central London. The Gault Formation represents a [[marine transgression]] following erosion of the Lower Greensand. It is subdivided into two sections, the Upper Gault and the Lower Gault. The Upper Gault [[onlap]]s onto the Lower Gault. The Gault Formation thins across the [[London Platform]] and then terminates against the [[Hunstanton Formation|Red Chalk]] just to the south of [[The Wash]] in [[East Anglia]].

The Gault exposure at Copt Point, which is the [[type locality (geology)|type locality]] for the formation, is 40 m in thickness.