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

Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2016

Issue Title: IX CONGRESO GEOLÓGICO DE ESPAÑA

Issue: 16

Pages: 629-632

Type: Article

DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Geotemas (Madrid)

Abstract

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).

Data source: Dialnet