Small-scale disturbances in the stratigraphy of the NEEM ice core: observations and numerical model simulations

Jansen, D.; Llorens, M.-G.; Westhoff, J.; Steinbach, F.; Kipfstuhl, S.; Bons, P. D.; Griera, A.; Weikusat, I.

doi:https://doi.org/10.5194/tc-10-359-2016

Articles | Volume 10, issue 1

https://doi.org/10.5194/tc-10-359-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/tc-10-359-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 1

Research article

|

12 Feb 2016

Research article |

| 12 Feb 2016

Small-scale disturbances in the stratigraphy of the NEEM ice core: observations and numerical model simulations

D. Jansen, M.-G. Llorens, J. Westhoff, F. Steinbach, S. Kipfstuhl, P. D. Bons, A. Griera, and I. Weikusat

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Final revised paper (published on 12 Feb 2016)
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Preprint (discussion started on 29 Oct 2015)
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Interactive discussion

Status: closed

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

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RC C2333: 'Referee Comment', Anonymous Referee #1, 20 Nov 2015
RC C2454: 'Review', Anonymous Referee #2, 08 Dec 2015
AC C2856: 'Reply to the reviewers' comments', Daniela Jansen, 22 Jan 2016
AC C2857: 'Revised Manuscript', Daniela Jansen, 22 Jan 2016
EC C2867: 'Submission of your authors comments and revised manuscript', Jean-Louis Tison, 25 Jan 2016
EC C2879: 'Further revision', Jean-Louis Tison, 27 Jan 2016
AC C2899: 'Revised Manuscript', Daniela Jansen, 28 Jan 2016

Peer-review completion

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

AR by Daniela Jansen on behalf of the Authors (22 Jan 2016) Author's response Manuscript

ED: Publish as is (02 Feb 2016) by Jean-Louis Tison

Short summary

In this study we present examples of typical small-scale folds observed in the NEEM ice core, North Greenland, and discuss their characteristics. Numerical modelling of viscoplastic deformation and dynamic recrystallisation was used to improve the understanding of the formation of the observed structures under simple shear boundary conditions. We conclude that the folds originate from bands of grains with a tilted lattice relative to the strong lattice preferred orientation below 1500 m depth.