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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Latest update: 19 May 2024
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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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