A proposal of a Hydromagmatic Explosivity Index (HEI) using liquefaction structures. An example in El Golfo volcano (Lanzarote, Canary Islands, Spain)
- M.A. Rodríguez-Pascua 1
- N. Sánchez 1
- M.A. Perucha 1
- I. Galindo 1
- R. Pérez López 1
- C. Romero 2
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1
Instituto Geológico y Minero de España
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2
Universidad de La Laguna
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ISSN: 1576-5172
Año de publicación: 2016
Título del ejemplar: IX CONGRESO GEOLÓGICO DE ESPAÑA
Número: 16
Páginas: 629-632
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
The geological record is a suitable tool for the study of eruptive activity in volcanoes. The hydromagmatic explosive eruptions can generate deformation in sediments, which were deposited on the volcanic cone. The hydromagmatic sediments can be liquefied when the energy released by the explosion exceeds seismic magnitudes of 5-5.5 (sand sediment size) or 7.5 (gravel sediment size). Using these thresholds to liquefaction we propose a new Hydromagmatic Explosivity Index (HEI).