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Formation of calcite by chemolithoautotrophic bacteria : a new hypothesis, based on microcrystalline cave pisoids

Formation of calcite by chemolithoautotrophic bacteria ...

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dc.contributor.author Gradziński, Michał [SAP11015154] pl
dc.contributor.author Chmiel, Maria Jolanta pl
dc.contributor.author Motyka, Jacek pl
dc.date.accessioned 2016-08-10T07:53:00Z
dc.date.available 2016-08-10T07:53:00Z
dc.date.issued 2012 pl
dc.identifier.issn 0208-9068 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/29470
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Formation of calcite by chemolithoautotrophic bacteria : a new hypothesis, based on microcrystalline cave pisoids pl
dc.type JournalArticle pl
dc.description.physical 361-369 pl
dc.identifier.weblink http://www.asgp.pl/82_4_361_369 pl
dc.abstract.en A new mechanism, stimulating the precipitation of calcite, is postulated. The supersaturation with respect to carbonate minerals is changed, as a result of CO2 consumption by chemolithoautotrophic, hydrogen-oxidizing bacteria. This mechanism controls the growth of atypical, microcrystalline cave pisoids in Perlová Cave, in Slovakia. The pisoids grow under calm conditions in rimstone pools, where they are bathed continuously in stagnant water. The water is supersaturated, with respect to calcite and aragonite. The bacteria inhabit the outer parts of the pisoids, covered by biofilms. The biofilm influences the supply of the Ca2+ ion, slows down the precipitation rate, and favors calcite precipitation over that of aragonite. The calcite initially precipitates as bacterial replicas, which further act as seeds for the growing calcite crystals. This process leads to the obliteration of the primary, bacterial fabrics. Since hydrogen-oxidizing bacteria occur in a wide spectrum of natural habitats, the mechanism of calcification, postulated above, also may operate in other environments. pl
dc.subject.en microbial carbonates pl
dc.subject.en biomineralization pl
dc.subject.en biofilm pl
dc.subject.en speleothems pl
dc.subject.en Carpathians pl
dc.description.volume 82 pl
dc.description.number 4 pl
dc.title.journal Annales Societatis Geologorum Poloniae pl
dc.language.container eng pl
dc.date.accession 2015-03-12 pl
dc.affiliation Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych pl
dc.subtype Article pl
dc.rights.original OTHER; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
.pointsMNiSW [2012 A]: 15


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