By Olga V. Frank-Kamenetskaya, Elena G. Panova, Dmitry Yu. Vlasov
This publication bargains a set of papers awarded on the V overseas Symposium "Biogenic - abiogenic interactions in typical and anthropogenic platforms" that was once held from 20-22 October 2014 in Saint Petersburg (Russia). Papers during this e-book conceal quite a lot of subject matters attached with interactions among biogenic and abiogenic elements within the lithosphere, biosphere and technosphere. the most issues contain: biomineralization in geosystems, geochemistry of biogenic-abiogenic structures, biomineral interactions in soil, minerals in dwelling organisms and biomimetic fabrics, clinical geology, bioweathering and destruction of cultural heritage.
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Extra info for Biogenic—Abiogenic Interactions in Natural and Anthropogenic Systems
Pd reduction to nanoparticles is observed only on peat and partly on NHR. Humic acids and microfungus cell walls adsorb Pd ions only. Pt interaction with microfungus biomass also stops at the sorption stage. 3 Conclusions Based on precious metal sorption experiments, it has been discovered that the studied biosorbents—peat, HA, NHR, and microscopic fungi—extract gold at 86–99 %, palladium at 89–95 % from chloride solutions, and platinum at 73–87 %. With a reduction of the acidity, the extraction ratio of precious metals increases for all sorbents, reaching a maximum in a weakly alkaline pH range and then decreasing almost to the original value.
2003; Gorbushina 2007). These microbial structures have occurred on virtually every rock surface throughout the entire geological history of the earth and have actively participated in rock weathering. Lithobiontic communities are the primary settlers on lava following volcanic eruptions and on rocks after the retreat of glaciers. Subaerial rock bioﬁlms represent the ﬁrst stage of primary succession of terrestrial ecosystems on mineral substrates. Through occupying the fractal dimension of the rock surface, subaerial bioﬁlms present an immense reactive surface in contact both with the atmosphere and with the underlying mineral materials.
M. I. Radomskaya biomineralization process. ) involved in organogenic formation processes play a major role in the biogenic concentration of elements. Living matter actively influences the geochemical environment, differentiation, migration of chemical elements through the food chain, metabolites, and postmortem residues, providing for the migration of biogenic forms of chemical elements and the biogenic origin of some deposits of gold, uranium, iron, phosphorus, and others. Microorganisms play a signiﬁcant role in the concentration process of chemical elements in the weathering crust.
Biogenic—Abiogenic Interactions in Natural and Anthropogenic Systems by Olga V. Frank-Kamenetskaya, Elena G. Panova, Dmitry Yu. Vlasov