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Assessment of clayey materials from Santa Maria (Azores, Portugal) for preparation of peloids

Published online by Cambridge University Press:  01 August 2019

Ângela Cerqueira ,
Cristiana Costa ,
Denise Terroso ,
Cristina Sequeira  and
Fernando Rocha Open the ORCID record for Fernando Rocha [Opens in a new window]
Ângela Cerqueira
Affiliation:
Aveiro University, GeoBioTec Research Centre, Geosciences Department, 3810-193 Aveiro, Portugal
Cristiana Costa
Affiliation:
Aveiro University, GeoBioTec Research Centre, Geosciences Department, 3810-193 Aveiro, Portugal
Denise Terroso
Affiliation:
Aveiro University, GeoBioTec Research Centre, Geosciences Department, 3810-193 Aveiro, Portugal
Cristina Sequeira
Affiliation:
Aveiro University, GeoBioTec Research Centre, Geosciences Department, 3810-193 Aveiro, Portugal
Fernando Rocha*
Affiliation:
Aveiro University, GeoBioTec Research Centre, Geosciences Department, 3810-193 Aveiro, Portugal
*
*E-mail: tavares.rocha@ua.pt
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Abstract

There is growing interest in the use of natural materials as alternatives to medicinal products composed of chemicals. For this reason, it is important to study materials which fill this need (e.g. the formulation of peloids). Historically, the Azores archipelago has long been visited for its mud baths, mainly on São Miguel Island, where volcanic muds demonstrate beneficial properties. The volcanic muds are scarce, however. Thus, residual clay materials of Santa Maria Island were studied to assess their suitability for the formulation of peloids. The results of tests from 20 samples, collected from all over the island, presented evidence that they are very favourable for peloid formulations, due to their mineralogical, chemical and technological properties. The materials showed good potential for blending with the São Miguel volcanic muds. The deposits studied show extensive outcrops.

Keywords

healing clayproperties assessmentSanta Maria Island
Type
Article
Information
Clay Minerals , Volume 54 , Issue 3 , September 2019 , pp. 299 - 307
Copyright
Copyright © Mineralogical Society of Great Britain and Ireland 2019 

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Footnotes

Associate Editor: Asuman Turkmenoglu

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