Fig. 2: Sites U1513 and U1516 correlation.
From: Oceanic Anoxic Event 2 triggered by Kerguelen volcanism
Planktonic foraminifera and calcareous nannofossil bio-events38,39 constrain the timing of Oceanic Anoxic Event 2 (OAE2) and the Mid-Cenomanian Event (MCE). Core lithology, colour and Natural Gamma Radiation (NGR) from International Ocean Discovery Program Expedition 369 Proceedings36. Calcium (Ca) counts (X-Ray Fluorescence (XRF) data)69 correlate with measured % calcium carbonate (CaCO3), and the relationship between them is used to create a scale for %CaCO3. CCSF (m) = core composite depth below sea floor in meters. % total organic carbon (TOC), δ13C(organic), mercury (Hg) and Hg/TOC, 87Sr/86Sr and εNd presented in this study. δ13C(carbonate) is a compilation of data from this and other recent studies38,39. Light blue shading represents the MCE and OAE2, with darker blue shading indicating the low carbonate zone in OAE2. A light grey shaded area indicates the possible location of OAE 1d (see Supplementary Materials for identification of OAEs). Grey shading in Hg/TOC data represents uncertainty – see details in methods for calculations.
