Quantifying uncertainty in the structure and duration of silurian biogeochemical events

Bradley D. Cramer; Mark D. Schmitz; Robin B. Trayler; Brittany M. Stolfus; David W. Peate; Neo E. B. McAdams; Michiel Arts; Anne-Christine Da Silva

doi:10.1038/s41598-026-63884-3

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Quantifying uncertainty in the structure and duration of silurian biogeochemical events

Journal article

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Quantifying uncertainty in the structure and duration of silurian biogeochemical events

Bradley D. Cramer, Mark D. Schmitz, Robin B. Trayler, Brittany M. Stolfus, David W. Peate, Neo E. B. McAdams, Michiel Arts and Anne-Christine Da Silva

Scientific reports

08/10/2026

DOI: 10.1038/s41598-026-63884-3

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Abstract

The rock record preserves the physical, chemical, and biological history of the Earth including dozens of biogeochemical events that fundamentally altered the Earth system. In order to evaluate the structure and duration of these events and accompanying Earth system changes, both rock sequences and numerical time must be integrated. Historically, these two exercises, chronostratigraphy for the rock record, and geochronology for the numerical record, have been decoupled due to uneven or sparse data developed in globally dispersed rock sequences via traditionally disparate disciplines (stratigraphy and radioisotope geochemistry). Here, we present an interdisciplinary study of the Silurian Altajme drill core (Gotland, Sweden) to illustrate how high-resolution carbon isotope stratigraphy conditioned by new high-precision CA-ID-TIMS U/Pb zircon bentonite dates within a Bayesian age-depth model dramatically changes perspectives on the rates of change and detailed substructure of two major Silurian positive carbon isotope excursions (Ireviken and Mulde) with implications for the potential drivers of these biogeochemical events.

Details

Title: Subtitle: Quantifying uncertainty in the structure and duration of silurian biogeochemical events
Creators: Bradley D. Cramer - University of Iowa
Mark D. Schmitz - Boise State University
Robin B. Trayler - University of California, Merced
Brittany M. Stolfus - University of Iowa
David W. Peate - University of Iowa
Neo E. B. McAdams - Texas Tech University
Michiel Arts - University of Liège
Anne-Christine Da Silva
Resource Type: Journal article
Publication Details: Scientific reports
DOI: 10.1038/s41598-026-63884-3
ISSN: 2045-2322
eISSN: 2045-2322
Publisher: Springer Nature
Language: English
Electronic publication date: 08/10/2026
Academic Unit: International Programs; School of Earth, Environment, and Sustainability; Honors Program
Record Identifier: 9985218635902771

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