Articles | Volume 5, issue 1
https://doi.org/10.5194/gchron-5-153-2023
https://doi.org/10.5194/gchron-5-153-2023
Research article
 | 
12 Apr 2023
Research article |  | 12 Apr 2023

Direct dating of overprinting fluid systems in the Martabe epithermal gold deposit using highly retentive alunite

Jack Muston, Marnie Forster, Davood Vasegh, Conrad Alderton, Shawn Crispin, and Gordon Lister

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC2: 'Comment on gchron-2021-25', Anonymous Referee #2, 27 Oct 2021
  • EC1: 'Comment on gchron-2021-25', Darren Mark, 30 Nov 2021
    • EC2: 'This was provided by anonymous reviewer', Darren Mark, 30 Nov 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (29 Jan 2022) by Darren Mark
AR by Gordon Lister on behalf of the Authors (31 May 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to minor revisions (further review by editor) (21 Dec 2022) by Klaus Mezger
AR by Gordon Lister on behalf of the Authors (04 Jan 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (09 Jan 2023) by Klaus Mezger
ED: Publish as is (09 Jan 2023) by Klaus Mezger (Editor)
AR by Gordon Lister on behalf of the Authors (14 Jan 2023)  Author's response   Manuscript 
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Short summary
About 2 million years ago, rich gold deposits formed at Martabe, on the island of Sumatra in Indonesia. Fluids may have moved as the result of fault dilation caused by changes in stress orientation during the earthquake cycle, so to work out exactly when and how long between cycles, we dated a potassium-bearing mineral, alunite, using argon geochronology in association with diffusion experiments during temperature-controlled furnace step-heating, showing two episodes 250 thousand years apart.