A proposal of a Hydromagmatic Explosivity Index (HEI) using liquefaction structures. An example in El Golfo volcano (Lanzarote, Canary Islands, Spain)

  1. M.A. Rodríguez-Pascua 1
  2. N. Sánchez 1
  3. M.A. Perucha 1
  4. I. Galindo 1
  5. R. Pérez López 1
  6. C. Romero 2
  1. 1 Instituto Geológico y Minero de España
    info

    Instituto Geológico y Minero de España

    Madrid, España

    ROR https://ror.org/04cadha73

  2. 2 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Ano de publicación: 2016

Título do exemplar: IX CONGRESO GEOLÓGICO DE ESPAÑA

Número: 16

Páxinas: 629-632

Tipo: Artigo

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Outras publicacións en: Geotemas (Madrid)

Resumo

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).

Fonte de datos: Dialnet