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Identification of tephras from the Eastern Mediterranean using solid state techniques

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Identification of tephras from the Eastern Mediterranean using solid state techniques

Moran, Ernesto E (2001) Identification of tephras from the Eastern Mediterranean using solid state techniques. Masters thesis, Concordia University.

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Abstract

Solid state techniques have been used to characterize volcanic deposits from two areas in Greece: the Philippi peat basin, and the Myrtöön basin. The characterization involved the use of X-ray powder diffraction (XRPD) to identify the minerals present in the materials, electron probe microanalysis (EPMA) to obtain the chemical composition of the glassy components, and scanning electron microscopy (SEM) to study the morphology of the glassy components. The materials from the Philippi peat basin were found to be part of three tephra layers that are widespread in the area of study. The materials from the Myrtöön basin were composed of glass shards, vesicular pumice shards, and mineral fragments. The morphology of the glassy fragments present in the tephras from the Myrtöön and Philippi basins indicates that the eruptions that gave rise to these volcanic deposits were plinian, and that the magmas involved in the eruptions were high-viscosity magmas.

Divisions:Concordia University > Faculty of Arts and Science > Chemistry and Biochemistry
Item Type:Thesis (Masters)
Authors:Moran, Ernesto E
Pagination:xix, 171 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.Sc.)
Program:Chemistry and Biochemistry
Date:2001
Thesis Supervisor(s):Denes, Georges
ID Code:1342
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:18
Last Modified:08 Dec 2010 10:20
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