Re-excavation of the famous Mont-des-Récollets quarry in northern France and re-interpretation adjacent Cassel borehole have led to reconstruction one most complete Upper Ypresian Lutetian stratigraphic successions southern North Sea Basin. It includes entire suite formations members, from top Hyon Sand Formation (top NP12) base Maldegem (mid-NP15), originally defined central Belgium, extending...

Valery V. Chernykh, Charles M. Henderson, Ruslan Kutygin, Tatiana Filimonova, Guzal Sungatullina, Marina S. Afanasieva, N. Isakova, Rafael Kh. Sungatullin, Michael H. Stephenson, Lucia Angiolini, Boris I. Chuvashov. Episodes -0001;0:. https://doi.org/10.18814/epiiugs/2023/023015

Abstract The Ordovician System was introduced by Charles Lapworth as a solution to the overlapping unit stratotypes loosely defined Adam Sedgwick, for Cambrian, and Roderick Murchison, Silurian. has emerged one of longest most significant geological periods. Following an interval intensive research all key regions globe, in type areas England Wales have been replaced seven global stages three s...

A 1.5‰ to 2‰ carbon isotope shift in surface ocean dissolved inorganic carbon has been reported stratigraphically above the Cretaceous-Tertiary (K-T) boundary in the global stratotype section at El Kef, Tunisia, and in many other marine sections worldwide. Because a change in the dC value of paleoatmospheric CO2 would have accompanied the marine surface carbon isotope shift, the K-T carbon isot...