Bernard Beaudoin

TL;DR: The Miocene rotation of Sardinia (Western Mediterranean) remains poorly constrained despite a wealth of paleomagnetic data, primarily due to poor chronostratigraphic control as mentioned in this paper.

TL;DR: In this paper, a combination of microscopic and pyrolytic methods applied on a Cenomanian kerogen was used to demonstrate the crucial role of the mineral matrix both in organic matter preservation during kerogen formation and in kerogen stability once formed.

TL;DR: In this paper, a regional correlation scheme has been obtained between seven sections from Arizona to Kansas and northwards to South Dakota, showing that the last occurrences of the planktonic foraminiferid Rotalipora cushmani as well as the first occurrence of Helvetoglobotruncana helvetica are strongly diachronous, the Whiteinella archaeocretacea Partial Range Zone, in which the Cenomaniane Turonian boundary is located, being reduced to almost nothing.

TL;DR: The Cenomanian/Turonian boundary black shale has been traced in southeastern French subalpine ranges in several sections correlated over tens of kilometres, both on a bed-by-bed basis and with the control of δ13C isotope curves as discussed by the authors.

TL;DR: A detailed study of five representative Maastrichtian sections of deep-water pelagic limestones in the Umbria-Marche Apennines of Italy shows that inoceramids became extinct synchronously throughout this region some 3.5 Ma before the Cretaceous/Tertiary boundary.