Aeromagnetic anomalies and structure of the Iztaccíhuatl- Popocatépetl volcanic region in Central Mexico
Popocatépetl volcano is characterized by a high amplitude dipolar anomaly that is normally polarized and centered on thesummit cone. The anomaly shows the effects of topographic relief and of major fault zones. Similar characteristics are documentedover the Iztaccíhuatl volcanic complex, where a lar...
| Autores: | , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2002 |
| País: | México |
| Recursos: | Universidad Nacional Autónoma de México |
| Repositório: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:56841205 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=56841205 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Ciencias de la Tierra Central Mexico volcanic structure Aeromagnetic survey Popocatépetl volcano |
| Resumo: | Popocatépetl volcano is characterized by a high amplitude dipolar anomaly that is normally polarized and centered on thesummit cone. The anomaly shows the effects of topographic relief and of major fault zones. Similar characteristics are documentedover the Iztaccíhuatl volcanic complex, where a large composite dipolar anomaly is correlated with topography and witheffects of deeper-seated source bodies. The dipolar anomaly is normally polarized over the summit elevations, with superimposedlower amplitude anomalies over the volcano flanks. An aeromagnetic survey over the adjacent volcanic and sedimentary terrainsto the east and south of the Iztaccíhuatl-Popocatépetl complex also reflect the surface and deep geological features, with highamplitude,high-frequency anomalies over the volcanic units and small volcanoes and low-amplitude, long-wavelength anomaliesover the volcano-sedimentary deposits. The aeromagnetic survey illustrates the potential of aerogeophysical methods in studyingvolcanic structures over abrupt topography and undergoing active eruptive phases. |
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