Publications

A cosmogenic <sup>10</sup>Be anomaly during the late Miocene as independent time marker for marine archives

Author(s)
Dominik Koll , Johannes Lachner, Sabrina Beutner, Sebastian Fichter, Silke Merchel, Georg Rugel, Zusana Slavkovská, Carlos Vivo Vilches, Stella Winkler, Anton Wallner
Abstract

Cosmogenic nuclide dating relies on the constancy of production and incorporation of radionuclides in geological archives. Anomalous deviations from constancy during the Holocene or Pleistocene are frequently used as global benchmarks to harmonize different data sets. A similar dating anchor on the million year timescale was so far not presented. In this work, we report on a prolonged cosmogenic

10Be anomaly during the late Miocene recorded in several Central and Northern Pacific deep-ocean ferromanganese crusts in the time period 9–11.5 Myr ago peaking at 10.1 Myr. Potential origins of this anomaly are discussed in the light of geological, climatic, solar and astrophysical events. This anomaly has the potential to be an independent time marker for marine archives.

Organisation(s)
Isotope Physics
External organisation(s)
Australian National University, Helmholtz-Zentrum Dresden-Rossendorf, Technische Universität Dresden
Journal
Nature Communications
Volume
16
No. of pages
9
ISSN
2041-1723
DOI
https://doi.org/10.1038/s41467-024-55662-4
Publication date
02-2025
Peer reviewed
Yes
Austrian Fields of Science 2012
103004 Astrophysics, 104002 Analytical chemistry, 105127 Geochronology
ASJC Scopus subject areas
General Chemistry, General Biochemistry,Genetics and Molecular Biology, General Physics and Astronomy
Sustainable Development Goals
SDG 14 - Life Below Water
Portal url
https://ucrisportal.univie.ac.at/en/publications/b907a5cb-2b04-42e5-adfb-f15636ff7a58