Articles | Volume 5, issue 2
Short communication/technical note
19 Jul 2023
Short communication/technical note |  | 19 Jul 2023

Technical note: In situ U–Th–He dating by 4He ∕ 3He laser microprobe analysis

Pieter Vermeesch, Yuntao Tian, Jae Schwanethal, and Yannick Buret


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gchron-2023-2', Stephen Cox, 03 May 2023
    • AC1: 'Reply on RC1', Pieter Vermeesch, 16 May 2023
  • RC2: 'Comment on gchron-2023-2', Daniela Rubatto, 10 May 2023
    • AC2: 'Reply on RC2', Pieter Vermeesch, 17 May 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish subject to minor revisions (further review by editor) (22 May 2023) by Daniela Rubatto
AR by Pieter Vermeesch on behalf of the Authors (05 Jun 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (08 Jun 2023) by Daniela Rubatto
ED: Publish as is (12 Jun 2023) by Greg Balco(Editor)
AR by Pieter Vermeesch on behalf of the Authors (12 Jun 2023)
Short summary
The U–Th–He method is a technique to determine the cooling history of minerals. Traditional approaches to U–Th–He dating are time-consuming and require handling strong acids and radioactive solutions. This paper presents an alternative approach in which samples are irradiated with protons and subsequently analysed by laser ablation mass spectrometry. Unlike previous in situ U–Th–He dating attempts, the new method does not require any absolute concentration measurements of U, Th, or He.