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

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

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

Dog not for scale

Introduction

• Morphological analysis as tool to characterize volcanic and tectonic structures

• Recently evolved volcanic region

• Minimal exogenous processes

Morphology and Spatial Distribution

• Linear data

• Areal data

Linear Data

• Identifies structural and volcano-structural features

Areal Data

• Morphological homogeneous zones

• Related to volcanic edifices

Geologic Framework

Methodology

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

• Aerial photographs– Domain characterization– Edifice identification

Data Summary

Feature Identification

Rectilinear

Curvilinear

Nevado de Toluca

• East opening Horseshoe

• 4 Merapi type dome collapses

• 4 Plinian eruptions

• Glacier activity