SophieBM93/Tropical-eastern-Atlantic-Benthic-Foraminifera-analyses: GeoB9512-5 Deglacial Paleo-Oxygenation Reconstruction

• Main Author: Sofía Barragán-Montilla
• Other Authors: Mulitza, Stefan
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2024
• Subjects: Northeast Atlantic
• Online Access: https://doi.org/10.5281/zenodo.10806183

The script was used to process the benthic foraminifera data GeoB9512-5 of the tropical eastern Atlantic. This folder contains a code to reproduce the results of the cited research. Folder 9512Age_PaleoOx contains the code and data to reproduce paleo-oxygenation results, and uncertainties: Folder 9512Age_PaleoOx 9512AgeModel_PaleOx.R was written in two parts: First Part: lines 16 - 154 to model ages based on the radiocarbon data published here https://doi.org/10.1594/PANGAEA.962899 and to estimate the median ages of the dissolved oxygen concentration calculated from the Enhanced Benthic Foraminifera Oxygen Index; and the proxy uncertainties Second part: from lines 156 - 704, to visualize the results presented in the publication the 9512_EA.csv file was adapted for this code using Supplementary Information 1 and 2 This includes the global variables compiled and plotted in Figures 2 and 3. All necessary files are provided in the folder. Any inquiries can be directed to the corresponding author. References Bard, E., Rostek, F., Turon, J.-L. & Gendreau, S. Hydrological Impact of Heinrich Events in the Subtropical Northeast Atlantic. Science 289, 1321–1324 (2000). Bard, Edouard; Rostek, Frauke; Turon, Jean-Louis; Gendreau, S (2000): Age, alkenone content and sea surface temperature records of sediment core SU81-18. PANGAEA, https://doi.org/10.1594/PANGAEA.441524 Barragán-Montilla, S. (dataset in review b). Benthic Foraminifera counts off NW Africa during the last deglaciation. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.962951 Blaauw, M. & Christen, J. A. Flexible paleoclimate age-depth models using an autoregressive gamma process. Bayesian Anal. 6, 457–474 (2011). Böhm, E. et al. Strong and deep Atlantic meridional overturning circulation during the last glacial cycle. Nature 517, 73–76 (2015). Heaton, T. J. et al. Marine20—The Marine Radiocarbon Age Calibration Curve (0–55,000 cal BP). Radiocarbon 62, 779–820 (2020). Kranner, M., Harzhauser, M., Beer, C., Auer, G. & Piller, W. E. Calculating ...