The late Cenomanian event in eastern England

Abstract
The Cenomanian/Turonian boundary event has been fully documented from a series of localities between Flamborough Head in Humberside and Marham in Norfolk. The carbon isotope excursion can be identified and extrapolated to all the studied sections using bed‐by‐bed correlation. Evidence from studies of the isotope data, trace element geochemistry, and the micropalaeontology are presented. The famous “Black Band” is seen to change laterally into a “red” horizon and then a “green” horizon when traced southwards. This appears to represent the “feather‐edge” of the anoxic event when traced towards a palaeo‐high which is located in the region of the Wash. All the events, so‐identified, can be correlated with the A. plenus Marl succession in southern England.

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