Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-06-23T17:07:28.653Z Has data issue: false hasContentIssue false
  • English
  • Français

An Unusual Chlorite as Revealed by the High Temperature X-Ray Diffractometer

Published online by Cambridge University Press:  09 July 2018

K. Kimbara ,
S. Shimoda  and
T. Sudo
K. Kimbara
Affiliation:
Geological and Mineralogical Institute, Faculty of Science, Tokyo University of Education, Otsuka, Bunkyo-ku, Tokyo, Japan
S. Shimoda
Affiliation:
Geological and Mineralogical Institute, Faculty of Science, Tokyo University of Education, Otsuka, Bunkyo-ku, Tokyo, Japan
T. Sudo
Affiliation:
Geological and Mineralogical Institute, Faculty of Science, Tokyo University of Education, Otsuka, Bunkyo-ku, Tokyo, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

An unusual chlorite has been collected from amygdales in Miocene volcanic rock found at Taiheizan, Akita Prefecture, Japan. The mineral shows subtle variations from other chlorites and related minerals. These are: (a) no apparent expansion with water or ethylene glycol, (b) negligible or no collapse after NH4-saturation or heating at about 300°C, (c) a slow decrease in the basal spacing on heating from approximately 400°C to 760°C, (d) a small amount of low temperature or capillary water and (e) a DTA curve with a vermiculite-like system of peaks.

The mineral is identified as a highly chloritic vermiculite with a small proportion of imperfect hydroxy interlayer.

Type
Research Article
Information
Clay Minerals , Volume 10 , Issue 2 , December 1973 , pp. 71 - 78
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1973

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Brown, B.E. & Bailey, S.W. (1962) Am. Miner. 47, 819.Google Scholar
Cole, W.F. & Hosking, J.S. (1957) In: The Differential Thermal Investigation of Clays (Ed. by R. C. Mackenzie), Chap. X. The Mineralogical Society, London.Google Scholar
Dana, E.S. (1915) Descriptive Mineralogy, p. 659. John Wiley & Sons, Inc., New York.Google Scholar
Honeyborne, D.B. (1951) Clay Min. Bull. 1, 150.CrossRefGoogle Scholar
Kerr, P.F. & Kulp, J.L. (1948) Am. Miner. 33, 387.Google Scholar
Macewan, D.M.C., Amil, A.R. & Brown, G. (1961) In : The X-ray Identification and Crystal Structures of Clay Minerals (Ed. by G. Brown), Chap. XI. The Mineralogical Society, London.Google Scholar
Mackenzie, R.C. (1957) Miner. Mag. 31, 672.Google Scholar
Mackenzie, R.C. (1970) Differential Thermal Analysis, Vol. I (Ed. by R. C. Mackenzie), Chap. 18. Academic Press, London and New York.Google Scholar
Martin Vivaldi, J.L. & Macewan, D.M.C. (1957) Clay Min. Bull. 3, 177.CrossRefGoogle Scholar
Sakamoto, S. & Sudo, T. (1956) Miner. J. Japan, 1, 348.Google Scholar
Shtmane, H. & Sudo, T. (1958) Clay Min. Bull. 3, 297.CrossRefGoogle Scholar
Shimoda, S. (1970) Clay Miner. 8, 352.CrossRefGoogle Scholar
Shimura, Y. (1961) Rev. Sclent. Instrum. 32, 1404.CrossRefGoogle Scholar
Stephen, I. & Macewan, D.M.C. (1951) Clay Min. Bull. 1, 157.CrossRefGoogle Scholar
Sutherland, H.H. & Macewan, D.M.C. (1962) Clays Clay Miner. 9, 451.CrossRefGoogle Scholar