Tea Green marls at Blue Anchor, Somerset.
At the base of the Jurassic in Britain there was a marine transgression
that changed the conditions from desert to shallow water marine
sediments. The Tea Green Marls are full of shoreline features
such as sun cracks, ripple marks, even trace impressions of
ice crystals. The pink horizons are evaporite deposits, typically
pink gypsum, that formed under conditions similar to the Persian