The first find of biogenic nanohematite in the bauxite-bearing weathering crust in basalt from South Vietnam

The abundance of microbial forms (bacteria, biofilms, bacterial mats, glycocalyx) participating in the formation of iron oxide and hydroxide minerals is a peculiar feature of weathering crusts (CW) in basalt from South Vietnam. Their maximal concentration is observed in the zone of lateritic bauxite...

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Bibliographic Details
Published in:Doklady earth sciences 2013-11, Vol.453 (1), p.1145-1149
Main Authors: Bortnikov, N. S., Novikov, V. M., Boeva, N. M., Zhukhlistov, A. P., Zhegallo, E. A., Gendler, T. S., Zaitseva, L. V., Soboleva, S. V.
Format: Article
Language:English
Subjects:
Aluminum compounds
Basalt
Bauxite
Biofilms
Earth and Environmental Science
Earth Sciences
Ferric oxide
Geochemistry
Hydroxides
Iron compounds
Iron oxides
Lithosphere
Magnetite
Microbiology
Mineralization
Minerals
Nanomaterials
Paleontology
Studies
Weathering
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Summary:The abundance of microbial forms (bacteria, biofilms, bacterial mats, glycocalyx) participating in the formation of iron oxide and hydroxide minerals is a peculiar feature of weathering crusts (CW) in basalt from South Vietnam. Their maximal concentration is observed in the zone of lateritic bauxite and cuirass formed above in the undersoil horizon. Currently magnetite Fe3O4 is well studied as a product of iron biomineralization by modern organisms and included in the top ten by scientific and practical importance. Special attention has been paid to natural, as well as synthetic, minerals formed with participation of magnitotactic bacteria.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X13110159