Articles | Volume 9, issue 4
Solid Earth, 9, 879–896, 2018
https://doi.org/10.5194/se-9-879-2018
Solid Earth, 9, 879–896, 2018
https://doi.org/10.5194/se-9-879-2018

Research article 13 Jul 2018

Research article | 13 Jul 2018

Generating porosity during olivine carbonation via dissolution channels and expansion cracks

Tiange Xing et al.

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AR by Svenja Lange on behalf of the Authors (25 Jun 2018)  Author's response    Manuscript
ED: Publish as is (25 Jun 2018) by Michael Heap
ED: Publish as is (26 Jun 2018) by Federico Rossetti(Executive Editor)
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Short summary
The olivine carbonation reaction is volume increasing and could prevent further reaction by clogging the fluid pathways. This contradicts the observed fully carbonated outcrops in nature, but the mechanism behind this self-sustainability is poorly understood. Our study reveals that the stretching-induced fracturing and the dissolution channelization are mechanisms that could contribute to the sustainability of carbonation reactions. This study provides new insights on the olivine carbonation.