Articles | Volume 17, issue 13
Research article
10 Jul 2020
Research article |  | 10 Jul 2020

Quantity and distribution of methane entrapped in sediments of calcareous, Alpine glacier forefields

Biqing Zhu, Manuel Kübler, Melanie Ridoli, Daniel Breitenstein, and Martin H. Schroth


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (07 May 2020) by Tina Treude
AR by Martin Schroth on behalf of the Authors (12 May 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (17 Jun 2020) by Tina Treude
AR by Martin Schroth on behalf of the Authors (17 Jun 2020)  Author's response    Manuscript
Short summary
We provide evidence that the greenhouse gas methane (CH4) is enclosed in calcareous glacier-forefield sediments across Switzerland. Geochemical analyses confirmed that this ancient CH4 has its origin in the calcareous parent bedrock. Our estimate of the total quantity of CH4 enclosed in sediments across Switzerland indicates a large CH4 mass (~105 t CH4). We produced evidence that CH4 is stable in its enclosed state, but additional experiments are needed to elucidate its long-term fate.
Final-revised paper