We suggest that the radiant density of effusive/extrusive lava bodies can be predicted (±50%) by means of an empirical relationship based on the SiO2 content of the erupted lava. This makes this parameter very useful in observing volcanic activity, especially in remote regions where access may not be possible. By measuring the energy radiated during an eruption and by assuming a lava composition (based on the tectonic setting or magmatic province), we suggest that the radiant density can be used to estimate lava discharge rates and erupted volumes for volcanoes characterised by effusive or extrusive activity.
Rheological control on the radiant density of active lava flows and domes
COPPOLA, DIEGO;LAIOLO, Marco;PISCOPO, DAVIDE;CIGOLINI, Corrado
2013-01-01
Abstract
We suggest that the radiant density of effusive/extrusive lava bodies can be predicted (±50%) by means of an empirical relationship based on the SiO2 content of the erupted lava. This makes this parameter very useful in observing volcanic activity, especially in remote regions where access may not be possible. By measuring the energy radiated during an eruption and by assuming a lava composition (based on the tectonic setting or magmatic province), we suggest that the radiant density can be used to estimate lava discharge rates and erupted volumes for volcanoes characterised by effusive or extrusive activity.
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