Chinnor_Chalk_Pit
Chinnor Chalk Pit
UK Site of Special Scientific Interest
Chinnor Chalk Pit is a 20.4-hectare (50-acre) geological Site of Special Scientific Interest south of Chinnor in Oxfordshire.[1][2] It is a Geological Conservation Review site.[3]
This site is described by Natural England as "important for its excellent exposures of Totternhoe Stone", dating to the mid-Cenomanian stage of the Cretaceous period, around 100 million years ago. It has yielded many fossils of ammonites from the Lower and Middle Chalk.[4]