Quartz dissolution associated with magnesium silicate hydrate cement precipitation

de Ruiter, Lisa; Gunnæs, Anette Eleonora; Dysthe, Dag Kristian; Austrheim, Håkon

doi:https://doi.org/10.5194/se-12-389-2021

Articles | Volume 12, issue 2

https://doi.org/10.5194/se-12-389-2021

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

https://doi.org/10.5194/se-12-389-2021

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

Articles | Volume 12, issue 2

Research article

|

18 Feb 2021

Research article |

| 18 Feb 2021

Quartz dissolution associated with magnesium silicate hydrate cement precipitation

Lisa de Ruiter, Anette Eleonora Gunnæs, Dag Kristian Dysthe, and Håkon Austrheim

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Final revised paper (published on 18 Feb 2021)
Supplement to the final revised paper
Preprint (discussion started on 31 Mar 2020)

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC1: 'Review Comments', Anonymous Referee #1, 30 Apr 2020
- AC1: 'Response to reviewer', Lisa de Ruiter, 01 Nov 2020
RC2: 'Review of de Ruiter et al.', Anonymous Referee #2, 24 Sep 2020
- AC2: 'Response to reviewer', Lisa de Ruiter, 01 Nov 2020

Peer-review completion

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

AR by Lisa de Ruiter on behalf of the Authors (29 Nov 2020) Author's response Manuscript

ED: Publish as is (11 Dec 2020) by Johan Lissenberg

ED: Publish as is (16 Dec 2020) by Joachim Gottsmann (Executive editor)

AR by Lisa de Ruiter on behalf of the Authors (23 Dec 2020)

Short summary

In this work, the formation of natural magnesium silicate hydrate cement has been studied. The cement forms through the extraordinarily fast dissolution of quartz under high-pH, Mg-rich conditions that occur in south-east Norway where an ultramafic body is exposed. We studied the cemented rocks and the processes that led to the formation of the cement from the field scale to the nanoscale. Magnesium silicate hydrate cement might be a low-CO₂ alternative to Portland cement.