A bulk composite carbonate stable isotope, X-ray fluorescence (XRF) scanning (elemental barium), biogenic barium and benthic foraminiferal record in deep sea sediments from the tropical Pacific was produced from 71.5 to 66 million years ago to determine variations in carbon export in the Pacific during the Maastrichtian. The cores were drilled on Shatsky Rise in the tropical Pacific at Ocean Drilling Program (ODP) Leg 198 Sites 1209 and 1210. Method details and interpretation are in the publication.

Funding for this research was provided by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) to TW and UR - project no. 320221997, and by grant PID2019-105537RB-I00 funded by MCIN/AEI/ 10.13039/501100011033 and by "ERDF A way of making Europe" to LA. Funding was also provided by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany´s Excellence Strategy – EXC-2077 – 390741603.

{"references": ["Kim, J.-E., Westerhold, T., Alegret, L., Drury, A. J., R\u00f6hl, U., and Griffith, E. M.: Precessional pacing of tropical ocean carbon export during the Late Cretaceous, Clim. Past Discuss. [preprint], https://doi.org/10.5194/cp-2022-42, in review, 2022."]}