Articles | Volume 20, issue 2
Research article
28 Feb 2024
Research article |  | 28 Feb 2024

Astronomically paced climate and carbon cycle feedbacks in the lead-up to the Late Devonian Kellwasser Crisis

Nina M. A. Wichern, Or M. Bialik, Theresa Nohl, Lawrence M. E. Percival, R. Thomas Becker, Pim Kaskes, Philippe Claeys, and David De Vleeschouwer

Data sets

Multiproxy dataset (pXRF, carbon isotopes, TOC, XRD) of the Devonian Kellwasser Crisis interval (ca. 372 Ma) at Winsenberg, Germany Nina M. A. Wichern et al.

Model code and software

NMAWichern/winsenberg_astro: Winsenberg_supplementary_code (Version v2023) Nina M. A. Wichern

Short summary
Middle–Late Devonian sedimentary rocks are often punctuated by anoxic black shales. Due to their semi-regular nature, anoxic events may be linked to periodic changes in the Earth’s climate caused by astronomical forcing. We use portable X-ray fluorescence elemental records, measured on marine sediments from Germany, to construct an astrochronological framework for the Kellwasser ocean anoxic Crisis. Results suggest that the Upper Kellwasser event was preceded by a specific orbital configuration.