alexa Characterization of Fine-grained Material Ejected by th
ISSN: 0974-8369

Biology and Medicine
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Special Issue Article

Characterization of Fine-grained Material Ejected by the Cotopaxi Volcano Employing X-ray Diffraction and Electron Diffraction Scattering Techniques

Andrea V. Vaca1, Carlos R. Arroyo1*, Alexis Debut1, Theofilos Toulkeridis2, Luis Cumbal1, Fernando Mato2, Mario Cruz D’Howitt3and Eduardo Aguilera3

1Centro de Nanociencia y Nanotecnología, Universidad de las Fuerzas Armadas ESPE, P.O. Box 171-5-231B, Sangolqui, Ecuador

2Departamento de Seguridad y Defensa, Universidad de las Fuerzas Armadas ESPE, P.O. Box 171-5-231, Sangolqui, Ecuador

3Departamento de Ciencias de la Tierra y Construcción, Universidad de las Fuerzas Armadas ESPE, P.O. Box 171-5-231, Sangolqui, Ecuador

*Corresponding Author:
Carlos R. Arroyo
Centro de Nanociencia y Nanotecnología
Universidad de las Fuerzas Armadas ESPE
P.O. Box 171-5-231B, Sangolqui, Ecuador
Tel: +593-23989400 Ext: 2113
E-mail: [email protected]

Received Date: March 16, 2016 Accepted Date: March 31, 2016 Published Date: April 05, 2016

Citation: Vaca AV, Arroyo CR, Debut A, Toulkeridis T, Cumbal L, et al. (2016) Characterization of Fine-grained Material Ejected by the Cotopaxi Volcano Employing X-ray Diffraction and Electron Diffraction Scattering Techniques. Biol Med (Aligarh) 8:280. doi:10.4172/0974-8369.1000280

Copyright: © 2016 Vaca AV, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

 

Abstract

After 138 years of apparent silence, the Cotopaxi volcano awoke on August 14th of 2015 with a sequence of eruption events and the emission of both fine-grained volcanic material and gases. Four samples of the very first eruption were collected at different sites within the fallout area. The analysis of such samples, by using X-Ray Diffraction (XRD) as well as Electron Diffraction Scattering (EDS) techniques, allow us to determine the geochemical and mineralogical composition. On the basisthe presence of juvenile magma at the proximity of the crater has been categorically excluded. Therefore major eruptions and the subsequent generation of far-reaching lahars can be discarded for the duration of this volcanic stage.

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