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

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• 作者：T. A. Ivanovskaya ; N. V. Gor’kova ; G. V. Karpova and E. V. Pokrovskaya
• 刊名：Lithology and Mineral Resources
• 出版年：2006
• 出版时间：December, 2006
• 年：2006
• 卷：41
• 期：6
• 页码：547-569
• 全文大小：601 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Mineral Resources
  Mineralogy
  Sedimentology
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3229

文摘

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 Fe2+-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.