Geochronology
Geochronology
GChron
Articles | Volume 6, issue 3
Articles | Volume 6, issue 3
https://doi.org/10.5194/gchron-6-325-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-6-325-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 3
Short communication/technical note
 | 
05 Jul 2024
Short communication/technical note |  | 05 Jul 2024

Short communication: Resolving the discrepancy between U–Pb age estimates for the “Likhall” bed, a key level in the Ordovician timescale

André Navin Paul, Anders Lindskog, and Urs Schaltegger

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Short summary
The “Likhall” bed helps to constrain the timing of increased meteorite bombardment of the Earth during the Ordovician period. It is important to understand the timing of this meteorite bombardment when attempting to correlate it with biodiversity changes during the Ordovician period. Calibrating a good age for the “Likhall” bed is, however, challenging and benefited in this study from advances in sample preparation.
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