Small-scale heterogeneity of trace metals including rare earth elements and yttrium in deep-sea sediments and porewaters of the Peru Basin, southeastern equatorial Pacific

Paul, Sophie A. L.; Haeckel, Matthias; Bau, Michael; Bajracharya, Rajina; Koschinsky, Andrea

doi:https://doi.org/10.5194/bg-16-4829-2019

Articles | Volume 16, issue 24

Biogeosciences, 16, 4829–4849, 2019

https://doi.org/10.5194/bg-16-4829-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Assessing environmental impacts of deep-sea mining...

Biogeosciences, 16, 4829–4849, 2019

https://doi.org/10.5194/bg-16-4829-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 24

Research article 20 Dec 2019

Research article | 20 Dec 2019

Small-scale heterogeneity of trace metals including rare earth elements and yttrium in deep-sea sediments and porewaters of the Peru Basin, southeastern equatorial Pacific

Sophie A. L. Paul et al.

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Final revised paper (published on 20 Dec 2019)
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Preprint (discussion started on 25 Jul 2019)
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Interactive discussion

Status: closed

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

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RC1: 'Good data set with interesting implications', Anonymous Referee #1, 12 Sep 2019
- AC1: 'Author comments: Responses to Referee # 1', Sophie Paul, 13 Nov 2019
RC2: 'Overall good contribution to understanding of deep sea sediments', Anonymous Referee #2, 12 Sep 2019
- AC2: 'Author comments: Responses to Referee # 2', Sophie Paul, 13 Nov 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (15 Nov 2019) by Jack Middelburg

AR by Sophie Paul on behalf of the Authors (22 Nov 2019) Author's response Manuscript

ED: Publish subject to technical corrections (02 Dec 2019) by Jack Middelburg

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Short summary

We studied the upper 10 m of deep-sea sediments, including pore water, in the Peru Basin to understand small-scale variability of trace metals. Our results show high spatial variability related to topographical variations, which in turn impact organic matter contents, degradation processes, and trace metal cycling. Another interesting finding was the influence of dissolving buried nodules on the surrounding sediment and trace metal cycling.