Fig. 1: Paleogeographic and precipitation maps during Late Cenomanian.

A Late Cenomanian palaeogeographic map43 illustrating studied section, locations of Large Igneous Province and sections of OAE2 sequence discussed in the text. Locations: Y – Yezo Group, Hokkaido (Japan); S-P – SH#1 and Portland cores, Colorado (USA) (WIS – Western Interior Seaway); E – Eastbourne (UK); V – Vocontian Basin (SE France); G – Gongzha section (southern Tibet, China); M – Mentelle Basin (SE of Australia). The Ontong Java Plateau, Madagascar Flood Basalt and High Arctic and Caribbean Large Igneous Provinces are marked on the map as OJP, MFB, HALIP and CLIP, respectively. B Map showing change in mean annual precipitation (mm/day) when pCO2 is ten times pre-industrial level15.