E3S Web Conf.
Volume 98, 201916th International Symposium on Water-Rock Interaction (WRI-16) and 13th International Symposium on Applied Isotope Geochemistry (1st IAGC International Conference)
|Number of page(s)||5|
|Section||Modeling of Hydrogeochemical and Ore Formation Processes|
|Published online||07 June 2019|
Local distribution of cobalt and selective enrichment of platinum in oceanic ferromanganese nodules
Sobolev Institute of Geology and Mineralogy SB RAS, 630090, Novosibirsk, Koptug ave., 3, Russia
2 Novosibirsk State University, 630090, Novosibirsk, Pirogova st., 1, Russia
* Corresponding author: firstname.lastname@example.org
The distribution of cobalt in the structure of ferromanganese nodules (FMN) was studied using beta-autoradiography. In some cases, the content of element increased in the outer part of the nodules, or in thin layers within the nodules. Layered type of cobalt distribution in FMN indicates changing conditions in deposition during their formation, in particular also the living conditions of microorganisms known to inhabit oceanic ferromanganese nodules. Experimental studies suggested that colonies of micromycetes living at the surface of the nodules can have an important impact on the selective accumulation of platinum and other elements in FMN.
© The Authors, published by EDP Sciences, 2019
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