Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Clay Minerals Signup for GSW Email News
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Clay Minerals; September 2002; v. 37; no. 3; p. 457-463; DOI: 10.1180/0009855023730045
© 2002 Mineralogical Society of Great Britain and Ireland
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Web of Science (6)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by SÁNCHEZ, C. J.
Right arrow Articles by CARRETERO, M. I.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Research Paper

The effect of maturation upon the mineralogical and physicochemical properties of illitic-smectitic clays for pelotherapy

C. J. SÁNCHEZ1, J. PARRAS2 and M. I. CARRETERO3,*

1 Laboratorio Mineralogía Aplicada, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, 2 Area CC Experimentales, Escuela Universitaria de Magisterio de Ciudad Real-Universidad de Castilla-La Mancha, 13071 Ciudad Real, and 3 Departamento de Cristalografía, Mineralogía y Química Agriícola, Facultad de Química, Universidad de Sevilla, Apdo. 553, 41041 Sevilla, Spain

* E-mail: carre{at}us.es

(Received 9 July 2001; revised 28 December 2001)

Illitic-smectitic clays were matured with a ferruginous, bicarbonate-rich and sulphate-rich water for different periods of time (7, 15, 30, 60 and 90 days), and subjected to discontinuous stirring, to test their use in pelotherapy. A progressive degradation of the clay minerals was observed during the maturation process, with a reduction in the illite and smectite crystallinity, in the percentage of smectites and in the phyllosilicate content. The percentage of <2 µm particles also decreased. These modifications caused changes in the clays’ physicochemical properties, which are evident in an increase in their plasticity index and in slower cooling of the peloid, both of which improved the clays’ effect in pelotherapy.

KEYWORDS: illitic-smectitic clays, physicochemical properties, maturation, pelotherapy






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Mineralogical Society of Great Britain and Ireland