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Copyright of Boletin de Geologia is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To promote the use of local raw materials (La Tetilla, Cauca) it is necessary to know more about their structural features and their response to certain treatments, including thermal treatments. In this work, a local raw material (La Tetilla, Cauca) was thermally treated and its behavior was studied with IR spectroscopy. Using a deconvolution band method and the integrated area concept to treat the results, we can describe the structural transformation of this clay that contained kaolin. The results of IR spectroscopy showed that the solid presented an important transformation between 500 y 700 °C. This process was determined because in this temperature range the integrated area of the bands associated to kaolin (~3629 and ~3695 cm-1), and to Al-OH (~910 cm-1) and Si-O-Al (~532 cm-1) decreased. On the other hand, in this range the surface OH (~3465 cm-1) and Si-O-Si bonds (~470 cm-1) increased. [ABSTRACT FROM AUTHOR]

Copyright of E-Gnosis is the property of Universidad de Guadalajara, Coordinacion General Academica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)