Oxygen and Carbon stable isotope ratios for Site U1334 ...

• Main Authors: Beddow, Helen M, Liebrand, Diederik, Sluijs, Appy, Wade, Bridget S, Lourens, Lucas Joost
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2016
• Subjects: Composite Core; Drilling/drill rig; Exp320; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Antarctic; Pacific; Antarc*; Ice Sheet
• Online Access: https://dx.doi.org/10.1594/pangaea.858332; https://doi.pangaea.de/10.1594/PANGAEA.858332

The Oligocene-Miocene transition (OMT) (~23 Ma) is interpreted as a transient global cooling event, associated with a large-scale Antarctic ice sheet expansion. Here we present a 2.23 Myr long high-resolution (~3 kyr) benthic foraminiferal oxygen and carbon isotope (d18O and d13C) record from Integrated Ocean Drilling Program Site U1334 (eastern equatorial Pacific Ocean), covering the interval from 21.91 to 24.14 Ma. To date, five other high-resolution benthic foraminiferal stable isotope stratigraphies across this time interval have been published, showing a ~1 per mil increase in benthic foraminiferal d18O across the OMT. However, these records are still few and spatially limited and no clear understanding exists of the global versus local imprints. We show that trends and the amplitudes of change are similar at Site U1334 as in other high-resolution stable isotope records, suggesting that these represent global deep water signals. We create a benthic foraminiferal stable isotope stack across the OMT by ... : Supplement to: Beddow, Helen M; Liebrand, Diederik; Sluijs, Appy; Wade, Bridget S; Lourens, Lucas Joost (2016): Global change across the Oligocene-Miocene transition: High-resolution stable isotope records from IODP Site U1334 (equatorial Pacific Ocean). Paleoceanography, 31(1), 81-97 ...