Articles | Volume 6, issue 2
https://doi.org/10.5194/gchron-6-125-2024
https://doi.org/10.5194/gchron-6-125-2024
Research article
 | 
17 Apr 2024
Research article |  | 17 Apr 2024

Evaluating manual versus automated benthic foraminiferal δ18O alignment techniques for developing chronostratigraphies in marine sediment records

Jennifer L. Middleton, Julia Gottschalk, Gisela Winckler, Jean Hanley, Carol Knudson, Jesse R. Farmer, Frank Lamy, Lorraine E. Lisiecki, and Expedition 383 Scientists

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2906', Anonymous Referee #1, 16 Jan 2024
    • AC1: 'Reply on RC1', Jennifer Middleton, 15 Feb 2024
  • RC2: 'Comment on egusphere-2023-2906', Anonymous Referee #2, 29 Jan 2024
    • AC2: 'Reply on RC2', Jennifer Middleton, 15 Feb 2024

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish as is (17 Feb 2024) by Norbert Frank
ED: Publish as is (23 Feb 2024) by Andreas Lang (Editor)
AR by Jennifer Middleton on behalf of the Authors (23 Feb 2024)  Author's response   Manuscript 
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Short summary
We present oxygen isotope data for a new sediment core from the South Pacific and assign ages to our record by aligning distinct patterns in observed oxygen isotope changes to independently dated target records with the same patterns. We examine the age uncertainties associated with this approach caused by human vs. automated alignment and the sensitivity of outcomes to the choice of alignment target. These efforts help us understand the timing of past climate changes.