Production of <sup>40</sup>Ar by an overlooked mode of <sup>40</sup>K decay with implications for K-Ar geochronology

Carter, Jack; Ickert, Ryan B.; Mark, Darren F.; Tremblay, Marissa M.; Cresswell, Alan J.; Sanderson, David C. W.

doi:https://doi.org/10.5194/gchron-2-355-2020

Articles | Volume 2, issue 2

https://doi.org/10.5194/gchron-2-355-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gchron-2-355-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 2, issue 2

Research article

|

26 Nov 2020

Research article |

| 26 Nov 2020

Production of ⁴⁰Ar by an overlooked mode of ⁴⁰K decay with implications for K-Ar geochronology

Jack Carter, Ryan B. Ickert, Darren F. Mark, Marissa M. Tremblay, Alan J. Cresswell, and David C. W. Sanderson

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Final revised paper (published on 26 Nov 2020)
Supplement to the final revised paper
Preprint (discussion started on 22 Apr 2020)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'outdated model, no new aspects, many errors, false methodology, weak motivation', Anonymous Referee #1, 29 Apr 2020
- AC1: 'Response to reviewer', Jack Carter, 29 Jul 2020
RC2: 'review Carter et al.', Anonymous Referee #2, 11 May 2020
- AC2: 'Response to reviewer', Jack Carter, 29 Jul 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (further review by editor) (03 Aug 2020) by Clare Warren

AR by Jack Carter on behalf of the Authors (27 Aug 2020) Author's response Manuscript

ED: Publish as is (30 Sep 2020) by Clare Warren

ED: Publish as is (30 Sep 2020) by Klaus Mezger (Editor)

AR by Jack Carter on behalf of the Authors (08 Oct 2020) Author's response Manuscript

Short summary

⁴⁰K is an isotope of potassium that undergoes several different modes of radioactive decay. We use the decay of ⁴⁰K to determine the ages of geologic materials that contain potassium but doing this requires us to know the rate at which ⁴⁰K decays by its different decay modes. Here, we investigate one decay mode of ⁴⁰K that has previously been overlooked. We demonstrate that this decay mode exists, estimate its rate, and evaluate its significance for geochronology.

Production of 40Ar by an overlooked mode of 40K decay with implications for K-Ar geochronology

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Interactive discussion

Peer-review completion

Production of ⁴⁰Ar by an overlooked mode of ⁴⁰K decay with implications for K-Ar geochronology