AN EXPERIMENTAL ALTERATION OF MONTMORILLONITE TO A DI + TRIOCTAHEDRAL SMECTITE ASSEMBLAGE AT 100 AND 200°C
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dc.contributor.author | Beaufort D. | |
dc.contributor.author | Berger G. | |
dc.contributor.author | Lacharpagne J.C. | |
dc.contributor.author | Meunier A. | |
dc.date.accessioned | 2021-03-04T10:25:00Z | |
dc.date.available | 2021-03-04T10:25:00Z | |
dc.date.issued | 2001 | |
dc.identifier | https://elibrary.ru/item.asp?id=13796653 | |
dc.identifier.citation | Clay Minerals, 2001, 36, 2, 211-225 | |
dc.identifier.issn | 0009-8558 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26265 | |
dc.description.abstract | Hydrothermal experiments were performed at 100 and 200°C and at different clay:water ratios in order to investigate the transformation of smectitic layers during the alteration of a montmorillonitic starting material. This study focused on three phenomena: (1) the amount and localization of charge within the layer of the newly-formed dioctahedral smectite; (2) the stacking of low- and high-charge layers in the dioctahedral smectitic material; and (3) the neoformation of trioctahedral smectites. In all of the runs, the formation of beidellite from montmorillonite induced morphological changes in clay particles which suggests a reaction proceeding by a dissolution-crystallization mechanism. Illite layers were detected in K-saturated montmorillonite runs after the transformation of ∼50% of the starting montmorillonite into beidellite (i.e. after 5 months of reaction with distilled water at 200°C). These illite layers were interstratified with both high-charge and low-charge dioctahedral smectites in a hypothetical three-component mixed-layer mineral. | |
dc.title | AN EXPERIMENTAL ALTERATION OF MONTMORILLONITE TO A DI + TRIOCTAHEDRAL SMECTITE ASSEMBLAGE AT 100 AND 200°C | |
dc.type | Статья |
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