FORMATION OF IRON MINERALS ON ZEOLITE MATRIX
L.M. Kondratyeva1, E.M. Golubeva2
1Institute of Water and Ecologic Problems, Far Eastern Branch of the Russian Academy of Sciences, ul. Kim Yu Chena 65, Khabarovsk, 680063, Russia
2Yu.A. Kosygin Institute of Tectonics and Geophysics, Far Eastern Branch of the Russian Academy of Sciences, ul. Kim Yu Chena 65, Khabarovsk, 680063, Russia
Keywords: Biogeochemical processes, biomineralization, goethite, zeolite, iron-manganese bacteria
Abstract
We present results of a two-year research experiment on the processes involving iron-manganese bacteria at different biogeochemical barriers. Analysis of experimental samples was carried out on a scanning electron microscope (EVO-40HV, Carl Zeiss) and an X-ray diffractometer (Rigaku MiniFlexII). It is shown that goethite can form in vitro in the presence of iron-containing groundwater and iron-manganese bacteria.
DOI: http://dx.doi.org/10.1016/j.rgg.2014.11.003
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