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Electron Transfer Drives Metal Cycling in the Critical Zone
- Source :
- Elements, Elements, 2020, 16 (3), pp.185-190. ⟨10.2138/gselements.16.3.185⟩, Elements, GeoScienceWorld, 2020, 16 (3), pp.185-190. ⟨10.2138/gselements.16.3.185⟩
- Publication Year :
- 2020
- Publisher :
- HAL CCSD, 2020.
-
Abstract
- International audience; Electron transfer in the critical zone is driven by biotic and abiotic mechanisms and controls the fate of inorganic and organic contaminants, whether redox-sensitive or not. In these environments, Fe- and Mn-bearing minerals, as well as organic matter, are key compounds. They interact with each other and constitute important electron shuttles. As a result, not only their solubility but also their structure controls the mobility of many essential and toxic elements. In addition, microorganisms that form hot spots and are widespread in environmental systems are also primordial players in electron transfer processes by acting as a catalyst between an electron donor and an acceptor, and through their contaminant detoxification metabolism.
- Subjects :
- Chemistry
Critical zone
trace elements
010501 environmental sciences
010502 geochemistry & geophysics
01 natural sciences
Metal
Electron transfer
13. Climate action
Geochemistry and Petrology
Chemical physics
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
visual_art
redox
oxides
Earth and Planetary Sciences (miscellaneous)
visual_art.visual_art_medium
Cycling
bacteria
0105 earth and related environmental sciences
organic matter
Subjects
Details
- Language :
- English
- ISSN :
- 18115209 and 18115217
- Database :
- OpenAIRE
- Journal :
- Elements, Elements, 2020, 16 (3), pp.185-190. ⟨10.2138/gselements.16.3.185⟩, Elements, GeoScienceWorld, 2020, 16 (3), pp.185-190. ⟨10.2138/gselements.16.3.185⟩
- Accession number :
- edsair.doi.dedup.....edbbfb78a331bbc3cfdecd1aa8dcf386