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Manuscript Submission Deadline 30 June 2023

Mineral defects are imperfections in the otherwise ordered crystal structure of minerals. Some defects are generated during the initial formation of the minerals, whilst others are generated in situ after formation by a variety of processes including mechanochemical stress or crushing, radiation from the sun, or radiation from the decay of radionuclides. Some defects can migrate through crystal structures induced by changing environmental conditions or change through time into alternative configurations. Mineral surfaces containing defects can behave differently to those of more pristine surfaces and may drive chemical reactions that would not otherwise take place. Recent research has identified mineral surface defects with unpaired electrons as a potential important driver for geochemical reactions in a variety of different surface or near surface environments including rivers and coasts, under glaciers and ice sheets, on the surface of Mars, in meteorite craters, and geological faults.

Recent research has highlighted an increased awareness of the potential importance of mineral defects in driving geochemical reactions with water or the atmosphere. Examples include the generation of acidity, hydrogen and hydrogen peroxide along geological faults, and the generation of oxidants by abrasion in rivers, and on the surface of Mars. There are further suggestions that such defects-driven geochemistry could have had a role in prebiotic chemistry. The goal of this research topic is to bring together research looking at different aspects of mineral-defect driven geochemistry, to kick start further avenues of interdisciplinary research and facilitate a step change in knowledge transfer and research progress in this field.

Specific themes include (but are not restricted to) the following:
• Environmental mechanochemistry (e.g. crushing induced geochemistry driven by wind abrasion, glacier erosion, geological fault movement, bolide impacts)
• Geochemistry driven by radiation-induced defects (e.g. by solar radiation, or radionuclides)
• Geochemistry driven by defects present in original minerals (e.g. peroxy linkages in igneous and metamorphic minerals)
• Mineral defects and prebiotic chemistry
• Interactions between mineral defects and the biosphere
• Mineral defect - aqueous reactions
• Mineral defect - atmosphere reactions

Keywords: Geological processes, Mineralogy, Mechanochemistry


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Mineral defects are imperfections in the otherwise ordered crystal structure of minerals. Some defects are generated during the initial formation of the minerals, whilst others are generated in situ after formation by a variety of processes including mechanochemical stress or crushing, radiation from the sun, or radiation from the decay of radionuclides. Some defects can migrate through crystal structures induced by changing environmental conditions or change through time into alternative configurations. Mineral surfaces containing defects can behave differently to those of more pristine surfaces and may drive chemical reactions that would not otherwise take place. Recent research has identified mineral surface defects with unpaired electrons as a potential important driver for geochemical reactions in a variety of different surface or near surface environments including rivers and coasts, under glaciers and ice sheets, on the surface of Mars, in meteorite craters, and geological faults.

Recent research has highlighted an increased awareness of the potential importance of mineral defects in driving geochemical reactions with water or the atmosphere. Examples include the generation of acidity, hydrogen and hydrogen peroxide along geological faults, and the generation of oxidants by abrasion in rivers, and on the surface of Mars. There are further suggestions that such defects-driven geochemistry could have had a role in prebiotic chemistry. The goal of this research topic is to bring together research looking at different aspects of mineral-defect driven geochemistry, to kick start further avenues of interdisciplinary research and facilitate a step change in knowledge transfer and research progress in this field.

Specific themes include (but are not restricted to) the following:
• Environmental mechanochemistry (e.g. crushing induced geochemistry driven by wind abrasion, glacier erosion, geological fault movement, bolide impacts)
• Geochemistry driven by radiation-induced defects (e.g. by solar radiation, or radionuclides)
• Geochemistry driven by defects present in original minerals (e.g. peroxy linkages in igneous and metamorphic minerals)
• Mineral defects and prebiotic chemistry
• Interactions between mineral defects and the biosphere
• Mineral defect - aqueous reactions
• Mineral defect - atmosphere reactions

Keywords: Geological processes, Mineralogy, Mechanochemistry


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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