{
  "abstract": "Clumped isotope (∆ 47 ) analyses of foraminifera provide a powerful means to reconstruct upper and bottom water temperatures, independent of seawater δ 18 O and elemental composition. We show statistically significant disequilibrium in the dual (∆ 47 -∆ 48 ) clumped isotope composition of some large benthic foraminifera, while other large benthic foraminifera plot within analytical uncertainty of ∆ 47 –∆ 48 equilibrium. This deviation suggests the influence of reaction kinetics, such as kinetic effects during CO 2 absorption or a combination of ion attachment/detachment effects at the solution-crystal interface and slight DIC disequilibrium. Measured core-top, planktic and deep-sea benthic foraminifera plot within the 95% confidence level of empirical ∆ 47 -∆ 48 equilibrium, although additional measurements are required to confidently exclude kinetic ∆ 47 -∆ 48 bias. Dual clumped isotope measurements of large benthic foraminifera from the Eocene of the Paris and Hampshire basins that conform with ∆ 47 -∆ 48 equilibrium (95% confidence level) further support existing evidence for surface ocean temperatures ~12–17 °C warmer than today.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 13,
  "authors": [
    {
      "name": "Amelia Jane Davies"
    },
    {
      "name": "Marion Peral"
    },
    {
      "name": "Jonathan Erez"
    },
    {
      "name": "Adam Levi"
    },
    {
      "name": "David Evans"
    },
    {
      "name": "Oliver Friedrich"
    },
    {
      "name": "Thibaut Caley"
    },
    {
      "name": "Romi Nambiar"
    },
    {
      "name": "Douglas Coenen"
    },
    {
      "name": "Philip Tauxe Staudigel"
    },
    {
      "name": "Mattia Tagliavento"
    },
    {
      "name": "Miguel Bernecker"
    },
    {
      "name": "Jens Fiebig"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1fzvrrcz06dv1.bib",
  "cited_by": 1,
  "doi": "10.1038/s43247-026-03770-y",
  "fulltext_url": null,
  "id": "1fzvrrcz06dv1",
  "issns": [
    "2662-4435"
  ],
  "landing_url": "https://hal.science/hal-05761344v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sde"
    ],
    [
      "openalex",
      "1902|Geology and Paleoclimatology Research"
    ]
  ],
  "openalex": "W7167711748",
  "pdf_url": "https://hal.science/hal-05761344/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-08",
  "publisher": "Springer Nature",
  "ris": "https://research.draconitic.com/paper/1fzvrrcz06dv1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:39Z",
      "native_id": "hal-05761344",
      "source": "hal",
      "url": "https://hal.science/hal-05761344v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:0.sde",
      "subfield": "environmental-science"
    }
  ],
  "title": "Dual clumped isotopes in foraminiferal calcite reveal kinetic bias in some species",
  "title_text": "Dual clumped isotopes in foraminiferal calcite reveal kinetic bias in some species",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:39Z",
  "url": "https://research.draconitic.com/paper/1fzvrrcz06dv1",
  "venue": "Communications Earth & Environment",
  "versions": []
}