PANGAEA_993223 Mean stable carbon isotope gradient between North Pacific and North Atlantic Novak, Joseph B; Abell, Jordan; Kinsley, Christopher Mean stable carbon isotope gradient between North Pacific and North Atlantic 2026-04-08 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993223 Investigator Joseph B Novak jobnovak@ucsc.edu Earth Science Marine isotope stage Age, dated, range, minimum Age, dated Age, dated, range, maximum Number of records, total Δ13C δ18O geoscientificInformation Carbon cycle carbon isotope gradients trace metals See description in dataset comment Complete unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 195 data points text/tab-separated-values Novak, Joseph B; Abell, Jordan; Kinsley, Christopher (2026): Mean stable carbon isotope gradient between North Pacific and North Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983607 Novak, Joseph B; Abell, Jordan; Kinsley, Christopher (2026): Pliocene and Quaternary timeslices of deep ocean carbon isotope gradients [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.993230

This data set contains the mean stable carbon isotope gradient between the deep North Pacific and deep North Atlantic during the Holocene, Last Glacial Maximum, and the marine isotope stages of the mid-Piacenzian Warm Period. These values include estimates of their uncertainty as determined by a bootstrapping technique. These values were calculated from the Pliocene and Quaternary timeslices of benthic stable carbon isotope gradients compiled as part of this study (doi:10.1594/PANGAEA.993230). These values give insights into how the storage of respired and disequilibrium carbon in the deep North Pacific has changed through time. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993223"! ** Methods: Δδ13C982-Site# was calculated for all sites in the Pacific greater than 2000 meters water depth. The mean of these values (Δδ13C982-NPAC) was considered to represent the mean difference between the NADW benthic δ13C and deep North Pacific benthic δ13C. Uncertainty in Δδ13C982-NPAC was estimated via bootstrapping. Δδ13C982-Site# values were randomly resampled 10,000 times with the random.choices function in Python. The N of the resampled distribution was equivalent to the number of sites with available data for a given interval. The mean values of these 10,000 randomly resampled distributions were then ordered from smallest to largest and the 250th, and 9750th values were taken as representative of the bounds of the 95% confidence interval.

https://doi.pangaea.de/10.1594/PANGAEA.983607 Mean stable carbon isotope gradient between North Pacific and North Atlantic https://doi.pangaea.de/10.1594/PANGAEA.993230 Pliocene and Quaternary timeslices of deep ocean carbon isotope gradients PANGAEA_983612 DIF 9.4 2026-04-08 2026-04-08