The Speeton Clay Formation is a Lower Cretaceous claystone unit, roughly 145 to 100 million years old, exposed in Yorkshire on England's northeast coast and named for the village of Speeton. It represents a marine setting, in contrast to the terrestrial deposits of the contemporary Wealden Group farther south, and it holds abundant fossils, among them belemnites, ammonites and marine reptiles.
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Speeton Clay Formation (Wikipedia)
In Discipline: Stratigraphy, Lead section (in-discipline Stratigraphy)
The Speeton Clay Formation (SpC) is a Lower Cretaceous geological formation in Yorkshire, northern England.
Caused By: Sedimentation, Lead
Unlike the contemporaneous terrestrial Wealden Group to the south, the Speeton Clay was deposited in marine conditions.
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