Two-dimensional impurity imaging in deep Antarctic ice cores: snapshots of three climatic periods and implications for high-resolution signal interpretation

Bohleber, Pascal; Roman, Marco; Šala, Martin; Delmonte, Barbara; Stenni, Barbara; Barbante, Carlo

doi:https://doi.org/10.5194/tc-15-3523-2021

Articles | Volume 15, issue 7

https://doi.org/10.5194/tc-15-3523-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Oldest Ice: finding and interpreting climate proxies in ice...

https://doi.org/10.5194/tc-15-3523-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 7

Research article

|

29 Jul 2021

Research article |

| 29 Jul 2021

Two-dimensional impurity imaging in deep Antarctic ice cores: snapshots of three climatic periods and implications for high-resolution signal interpretation

Pascal Bohleber, Marco Roman, Martin Šala, Barbara Delmonte, Barbara Stenni, and Carlo Barbante

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Final revised paper (published on 29 Jul 2021)
Supplement to the final revised paper
Preprint (discussion started on 23 Dec 2020)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'David Chew review', David M. Chew, 07 Feb 2021
- AC1: 'Reply on RC1', Pascal Bohleber, 02 Jun 2021
RC2: 'Great technical achievement', Anonymous Referee #2, 10 May 2021
- AC2: 'Reply on RC2', Pascal Bohleber, 02 Jun 2021

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to revisions (further review by editor and referees) (10 Jun 2021) by Joel Savarino

AR by Pascal Bohleber on behalf of the Authors (18 Jun 2021) Author's response Author's tracked changes Manuscript

ED: Publish subject to technical corrections (28 Jun 2021) by Joel Savarino

Short summary

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) offers micro-destructive, micrometer-scale impurity analysis of ice cores. For improved understanding of the LA-ICP-MS signals, novel 2D impurity imaging is applied to selected glacial and interglacial samples of Antarctic deep ice cores. This allows evaluating the 2D impurity distribution in relation to ice crystal features and assessing implications for investigating highly thinned climate proxy signals in deep polar ice.