Phyllosilicates (glauconite, illite, and chlorite) in terrigenous sediments of the Arymas Formation (Olenek High)

Phyllosilicates (glauconite, illite, and chlorite) in terrigenous sediments of the Arymas Formation (Olenek High)

It is shown that globular phyllosilicates subjected to deep categenesis are abundant in Middle Riphean sandstones and siltstones (lower subformation of the Arymas Formation) of the Olenek High. Their detailed structural-crystallochemical characteristics are given. Secondary alterations of globules a...

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Bibliographic Details
Published in:Lithology and Mineral Resources Vol. 41; no. 6; pp. 547 - 569
Main Authors: Ivanovskaya, T. A., Gor’kova, N. V., Karpova, G. V., Pokrovskaya, E. V.
Format: Journal Article
Language:English
Published: Moscow Springer Nature B.V 01-12-2006
Subjects:
Illite
Mineralogy
Minerals
Online Access:Get full text
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Summary:It is shown that globular phyllosilicates subjected to deep categenesis are abundant in Middle Riphean sandstones and siltstones (lower subformation of the Arymas Formation) of the Olenek High. Their detailed structural-crystallochemical characteristics are given. Secondary alterations of globules and the associated pelletal minerals at different stages of lithogenesis (illitization, chloritization, ferrugination, disintegration, and so on) are considered. Structural-crystallochemical characteristics of Fe-illite and Fe^sup 2+^-Mg-chlorite in globules, pellets, separate clayey strata among glauconite-bearing sandstones and siltstones (hereafter, sandy-silty rocks), and mudstone interlayers are also presented. Possible mechanisms of the formation of these minerals are discussed.[PUBLICATION ABSTRACT]
ISSN:0024-4902
1608-3229
1573-8892
DOI:10.1134/S0024490206060046