Boreskov

PP‐14indicates the chemical exchange, including a probable treatment of the mineral base by thebiota ferments. The latter provide the firm “cementation”.So the epilithic lichens use a rock not only as a support for settling. A biomineral systemis formed where the chemical interaction of minerals and lichen take place: enrichment offerruginous films with carbon and thalli with elements of Fe, S, and Si, and in certain caseswith Mg, Al, K, and Mn. Heavy metals (W, As, Zr, Ag, Ir) are not used by a growing organism.They are toxic for it, so scheelite, silver, and some sulfides are preserved even through thetreatment of them with ferments, and under appropriate conditions they can beaccumulated and redeposited to some degree by the lichens. The reported interactions ofminerals and lichens characterize the generation of isolated elements of futurebiogeocoenosis with the individual thus far chemical processes.References[1]. Ivanova V.L., Medvedeva L.A., Afanasieva T.B., Barinov N.N., Karabtsov A.A. Results of geological andbiological research of curative mud of Peter the Great Bay // Successes of sciences about a life, N 1, 2009.P. 162‐170.[2]. Yakhontova L.K., Zvereva V.P. The principles of hypergenesis mineralogy /Vladivostok: Dalnauka, 2000.336 p.156