Preprints
https://doi.org/10.5194/gchron-2021-24
https://doi.org/10.5194/gchron-2021-24

  20 Aug 2021

20 Aug 2021

Review status: a revised version of this preprint is currently under review for the journal GChron.

In situ produced cosmogenic krypton in zircon and its potential for Earth surface applications

Tibor J. Dunai1, Steven A. Binnie1, and Axel Gerdes2 Tibor J. Dunai et al.
  • 1Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
  • 2Institute for Geosciences, Goethe-University Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany

Abstract. Analysis of cosmogenic nuclides produced in surface rocks and sediments is a valuable tool for assessing rates of processes and the timing of events that shaped the Earth surface. The various nuclides that are used have specific advantages and limitations that depend on the time-range over which they are useful, the type of material they are produced in, and not least the feasibility of the analytical effort. Anticipating novel applications in Earth surface sciences, we develop in-situ produced terrestrial cosmogenic krypton (Krit) as a new tool; the motivation being the availability of six stable and one radioactive isotope (81Kr, half-life 229 kyr) and of an extremely weathering-resistant target mineral (zircon). We provide proof of principle that terrestrial Krit can be quantified and used to unravel Earth surface processes.

Tibor J. Dunai et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gchron-2021-24', Stephen Cox, 17 Sep 2021
    • AC1: 'Reply on RC1', Tibor J. Dunai, 17 Nov 2021
  • RC2: 'Comment on gchron-2021-24', Michal Ben-Israel, 26 Oct 2021
    • AC2: 'Reply on RC2', Tibor J. Dunai, 17 Nov 2021

Tibor J. Dunai et al.

Tibor J. Dunai et al.

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Short summary
We develop in-situ produced terrestrial cosmogenic krypton as a new tool to date and quantify Earth surface processes; the motivation being the availability of six stable and one radioactive isotope (81Kr, half-life 229 kyr) and of an extremely weathering-resistant target mineral (zircon). We provide proof of principle that terrestrial Krit can be quantified and used to unravel Earth surface processes.