Articles | Volume 3, issue 2
Geochronology, 3, 505–523, 2021
Geochronology, 3, 505–523, 2021

Research article 19 Oct 2021

Research article | 19 Oct 2021

Cosmogenic nuclide exposure age scatter records glacial history and processes in McMurdo Sound, Antarctica

Andrew J. Christ et al.


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gchron-2021-21', Anonymous Referee #1, 19 Jul 2021
    • AC1: 'Reply on RC1', Andrew Christ, 27 Aug 2021
  • RC2: 'Comment on gchron-2021-21', Ross Whitmore, 11 Aug 2021
    • AC2: 'Reply on RC2', Andrew Christ, 27 Aug 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (31 Aug 2021) by Yeong Bae Seong
AR by Andrew Christ on behalf of the Authors (10 Sep 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (16 Sep 2021) by Yeong Bae Seong
ED: Publish subject to technical corrections (16 Sep 2021) by Greg Balco(Editor)
Short summary
Cosmogenic nuclide surface exposure dating is commonly used to constrain the timing of past glacier extents. However, Antarctic exposure age datasets are often scattered and difficult to interpret. We compile new and existing exposure ages of a glacial deposit with independently known age constraints and identify surface processes that increase or reduce the likelihood of exposure age scatter. Then we present new data for a previously unmapped and undated older deposit from the same region.