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Formation of NH_{4}-illite-like phase at the expense of dioctahedral vermiculite in soil and diagenetic environments : an experimental approach

Formation of NH_{4}-illite-like phase at the expense ...

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dc.contributor.author Skiba, Michał [SAP11018136] pl
dc.contributor.author Skiba, Stefan [SAP11013048] pl
dc.contributor.author Derkowski, Arkadiusz pl
dc.contributor.author Maj-Szeliga, Katarzyna [SAP13007471] pl
dc.contributor.author Dziubińska, Beata [SAP11015880] pl
dc.date.accessioned 2018-06-12T10:05:46Z
dc.date.available 2018-06-12T10:05:46Z
dc.date.issued 2018 pl
dc.identifier.issn 0009-8604 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/54870
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Formation of NH_{4}-illite-like phase at the expense of dioctahedral vermiculite in soil and diagenetic environments : an experimental approach pl
dc.type JournalArticle pl
dc.description.physical 74-85 pl
dc.description.additional Bibliogr. s. 84-85 pl
dc.abstract.en Selective sorption and/or fixation of cations with low hydration energies (e.g. K^{+}, NH_{4}^{+}, Rb^{+}, Cs^{+}) by vermiculites is a well known phenomenon in soil science and it has been described by many investigators since the 1950s. Because most of the available studies deal with trioctahedral vermiculites, cation fixation in dioctahedral vermiculites is not as well understood as fixation by trioctahedral structures. The objective of the present study was to investigate the influence of NH_{4}^{+} saturation on the structure of a natural dioctahedral vermiculite. Because no dioctahedral vermiculite standard reference material was available, two natural dioctahedral vermiculite rich soil clay samples were used in the study. The clays were saturated with NH_{4}^{+} using different protocols to simulate natural processes that likely take place in soils. The degree of NH_{4}^{+} fixation by the dioctahedral vermiculite was evaluated using X-ray diffraction, elemental N analysis, and infrared spectroscopy. All the treatments that involved NH_{4}^{+} saturation caused NH_{4}^{+} fixation and irreversible collapse (i.e. contraction to ~10 Å) of at least a portion of the previously hydrated (vermiculitic) interlayers. Air drying of the NH_{4}^{+} -saturated samples greatly enhanced the degree of the collapse. The results indicated that the collapse of dioctahedral vermiculite leads to the formation of a NH_{4}-illite-like phase that is likely to occur in some soils and sediments that are rich in organic matter. The formation of a NH_{4}-illite-like phase by NH_{4}^{+} fixation in vermiculitic interlayers needs to be taken into consideration in studies that deal with the clay mineralogy of sedimentary basins. pl
dc.subject.en ammonium-illite pl
dc.subject.en dioctahedral vermiculite pl
dc.subject.en early-diagenetic illitization pl
dc.subject.en NH^{+}-fixation pl
dc.subject.en soil illitization pl
dc.description.volume 66 pl
dc.description.number 1 pl
dc.identifier.doi 10.1346/CCMN.2018.064082 pl
dc.identifier.eissn 1552-8367 pl
dc.title.journal Clays and Clay Minerals pl
dc.language.container eng pl
dc.affiliation Wydział Geografii i Geologii : Instytut Geografii i Gospodarki Przestrzennej pl
dc.affiliation Wydział Geografii i Geologii : Instytut Nauk Geologicznych pl
dc.subtype Article pl
dc.rights.original bez licencji pl
.pointsMNiSW [2018 A]: 20


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