Chemical compositions and X-ray properties of regularly interstratif ied mica-smectites
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- Matsuda Toshihiko
- Faculty of Science, Okayama University
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- Henmi Kitinosuke
- Faculty of Science, Okayama University
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- Nagasawa Keinosuke
- Faculty of Science, Shizuoka University
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- Honda Sakuro
- Mining College, Akita University
Bibliographic Information
- Other Title
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- 雲母―スメクタイト規則混合層鉱物の化学組成とX線的性質
- ウンモ スメクタイト キソク コンゴウソウ コウブツ ノ カガク ソセイ ト
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Abstract
Regularly interstratified dioctahedral mica-smectites from hydrothermally altered rocks (seven roseki deposits and a geothermal area) in Japan were examined by chemical analysis and X-ray diffractmetry. Chemical analysis shows that Si/Al ratios of the tetraherdral cations lie between 3.54 and 5.25, and the octahedral sites are occupied almost exclusively with Al3+. The expansible layers have beidellite-like compositions, but they have expansion characteristics similar to montmorillonite. Interlayer cations of mica-like layers are composed of Na+, K+ and Ca2+, and the relative amounts of the three cations vary from specimen to specimen. The basal spacing of interstratified structure increases in proportion to the K content of the non-expansible layers.
Journal
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- Journal of the Mineralogical Society of Japan
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Journal of the Mineralogical Society of Japan 15 (Special), 96-106, 1981
Japan Association of Mineralogical Sciences
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Details 詳細情報について
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- CRID
- 1390282681501061376
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- NII Article ID
- 130003623542
- 40001244513
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- NII Book ID
- AN00084868
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- ISSN
- 18837018
- 04541146
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- NDL BIB ID
- 2306872
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed