Accumulation and Post-Sedimentary Diagenesis of Tonsteins

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• 作者：L. A. Admakin
• 刊名：Lithology and Mineral Resources
• 出版年：2002
• 出版时间：2002
• 年：2002
• 卷：37
• 期：1
• 页码：60-67
• 全文大小：91 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

The work is devoted to specific features of sedimentogenesis and multistage alterations of eolian volcanic ash and epiclastic clay in paleopeat bogs and their transformation into ortho- and paratonsteins, respectively. The hydrolysis of aluminosilicate minerals and volcanic glass and their alteration into monotonous submonomineral clay, which is compositionally similar to epiclastic clay, is associated with the diagenesis stage. During the catagenesis, submonomineral clay is lithified and transformed into tonsteins, which undergo recrystallization as the temperature increases. Clay minerals are replaced by illite and chlorite, while tonsteins are transformed into metatonsteins. Paragenetic relationships of clay minerals are discussed.