Articles | Volume 4, issue 3
Earth Surf. Dynam., 4, 727–742, 2016
https://doi.org/10.5194/esurf-4-727-2016
Earth Surf. Dynam., 4, 727–742, 2016
https://doi.org/10.5194/esurf-4-727-2016

Research article 22 Sep 2016

Research article | 22 Sep 2016

Oxidation of sulfides and rapid weathering in recent landslides

Robert Emberson et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Robert Emberson on behalf of the Authors (03 Aug 2016)  Author's response    Manuscript
ED: Publish as is (25 Aug 2016) by Jane Willenbring
ED: Publish subject to technical corrections (05 Sep 2016) by Frédéric Herman(Editor)
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Short summary
Rapid dissolution of bedrock and regolith mobilised by landslides can be an important control on rates of overall chemical weathering in mountain ranges. In this study we analysed a number of landslides and rivers in Taiwan to better understand why this occurs. We find that sulfuric acid resulting from rapid oxidation of highly reactive sulfides in landslide deposits drives the intense weathering and can set catchment-scale solute budgets. This could be a CO2 source in fast-eroding mountains.