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

Paul, André Navin; Lindskog, Anders; Schaltegger, Urs

doi:https://doi.org/10.5194/gchron-6-325-2024

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

Supplement

https://doi.org/10.5194/gchron-6-325-2024-supplement

Data sets

Repository For: Short Communication: Resolving the 40 Discrepancy between U–Pb Age Estimates for the “Likhall” Bed, a Key Level in the Ordovician Timescale A. N. Paul https://doi.org/10.26037/yareta:54zokxodvrhlthtwk26htfeyla

Model code and software

Chron.jl: A Bayesian framework for inte- 80 grated eruption age and age-depth modelling C. B. Keller https://doi.org/10.17605/osf.io/TQX

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.