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Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights...

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Nevado de Toluca Volcano • Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to dacitic stratovolcano • Gianluca Norini et al
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Page 1: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Nevado de Toluca Volcano

• Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to dacitic stratovolcano

• Gianluca Norini et al

Page 2: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

http://www.skimountaineer.com/ROF/NorAm/Toluca/TolucaMap.jpg

Page 3: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

http://gringodog.home.comcast.net/~gringodog/dogphoto_files/NevadadeTolucaVolcano-MilotheMountaineer.JPG

Dog not for scale

Page 4: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Introduction

• Morphological analysis as tool to characterize volcanic and tectonic structures

• Recently evolved volcanic region

• Minimal exogenous processes

Page 5: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Morphology and Spatial Distribution

• Linear data

• Areal data

Page 6: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Linear Data

• Identifies structural and volcano-structural features

Page 7: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Areal Data

• Morphological homogeneous zones

• Related to volcanic edifices

Page 8: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Geologic Framework

Page 9: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Methodology

• DEM derived shaded images– Slope value distribution– Aspect distribution

• Aerial photographs– Domain characterization– Edifice identification

Page 10: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Data Summary

Page 11: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Feature Identification

Rectilinear

Curvilinear

Page 12: Nevado de Toluca Volcano Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to.

Nevado de Toluca

• East opening Horseshoe

• 4 Merapi type dome collapses

• 4 Plinian eruptions

• Glacier activity


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