THE ROLE OF CYANOBACTERIA IN CRYSTALLIZATION OF MAGNESIUM CALCITES

Zaitseva L.V.; Orleanskii V.K.; Gerasimenko L.M.; Ushatinskaya G.T.

dc.contributor.author	Zaitseva L.V.
dc.contributor.author	Orleanskii V.K.
dc.contributor.author	Gerasimenko L.M.
dc.contributor.author	Ushatinskaya G.T.
dc.date.accessioned	2025-06-10T10:13:22Z
dc.date.available	2025-06-10T10:13:22Z
dc.date.issued	2006
dc.identifier	https://elibrary.ru/item.asp?id=13525629
dc.identifier.citation	Paleontological Journal, 2006, 40, 2, 125-133
dc.identifier.issn	0031-0301
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/49326
dc.description.abstract	Laboratory experiments showed the effect of the cyanobacterium Microcoleus chthonoplastes on the formation of magnesium calcites, using model solutions (2.14M MgCl2-0.05M CaCl2-0.6M NaCl-0.18M NaHCO3). The conditions of existence of cyanobacteria in such solutions in light or darkness significantly alter the structure of the sediment and the shape and size of the carbonate crystals. Cyanobacteria slow down crystallization due to the formation of exometabolites with a chelating effect, which leads to the precipitation of high-magnesium calcites. In the photosynthetic environment the presence of huntite (CaMg3(CO3) 4), possible forerunner of dolomite, is prominent. © Pleiades Publishing, Inc. 2006.
dc.subject	CYANOBACTERIA
dc.subject	HIGH MAGNESIUM CALCITE
dc.subject	HUNTITE
dc.subject	PRECIPITATION
dc.title	THE ROLE OF CYANOBACTERIA IN CRYSTALLIZATION OF MAGNESIUM CALCITES
dc.type	Статья
dc.identifier.doi	10.1134/S003103010602002X