Articles | Volume 20, issue 5
https://doi.org/10.5194/bg-20-929-2023
https://doi.org/10.5194/bg-20-929-2023
Research article
 | 
07 Mar 2023
Research article |  | 07 Mar 2023

Abrasion of sedimentary rocks as a source of hydrogen peroxide and nutrients to subglacial ecosystems

Beatriz Gill-Olivas, Jon Telling, Mark Skidmore, and Martyn Tranter

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Cited articles

Allen, J. J.: Glacial effects on stream water nitrate: an examination of paired catchments in southern Montana, Earth Sciences, Montana State University, 2019. 
Anderson, S. P.: Glaciers show direct linkage between erosion rate and chemical weathering fluxes, Geomorphology, 67, 147–157, https://doi.org/10.1016/j.geomorph.2004.07.010, 2005. 
Baga, A. N., Johnson, G. R. A., Nazhat, N. B., and Saadalla-Nazhat, R. A.: A simple spectrophotometric determination of hydrogen peroxide at low concentrations in aqueous solution, Anal. Chim. Acta, 204, 349–353, https://doi.org/10.1016/S0003-2670(00)86374-6, 1988. 
Bak, E. N., Zafirov, K., Merrison, J. P., Jensen, S. J. K., Nornberg, P., Gunnlaugsson, H. P., and Finster, K.: Production of reactive oxygen species from abraded silicates. Implications for the reactivity of the Martian soil, Earth Planet. Sc. Lett., 473, 113–121, https://doi.org/10.1016/j.epsl.2017.06.008, 2017. 
Bataineh, H., Pestovsky, O., and Bakac, A.: pH-induced mechanistic changeover from hydroxyl radicals to iron(iv) in the Fenton reaction, Chem. Sci., 3, 1594–1599, https://doi.org/10.1039/C2SC20099F, 2012. 
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Short summary
Microbial ecosystems have been found in all subglacial environments sampled to date. Yet, little is known of the sources of energy and nutrients that sustain these microbial populations. This study shows that crushing of sedimentary rocks, which contain organic carbon, carbonate and sulfide minerals, along with previously weathered silicate minerals, produces a range of compounds and nutrients which can be utilised by the diverse suite of microbes that inhabit glacier beds.
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