We perform routine measurements on past and active (quenched in the field) explosive products that allows tracking of:
- Characterization of the plume (height, dispersion, intensity, volume, mass, duration, kinetic energy, particle size and distribution, componentry, morphology);
- Fragmentation conditions (in terms of source, depth, efficiency and style of explosion);
- Conditions operating in the volcanic conduit (in terms of magma density, porosity, connectivity, permeability, ascent rate, vesiculation and crystallinity histories and viscosity);
- Magma chemical composition;
- Their variations in space and time.
We perform routine measurements on lava samples to follow, in space and time, changes in lava flow rheology, dynamics, morphology and chemistry.
Rock samples are characterized in terms of
- Vesicle connectivity, and
Sample sets are defined in terms of their fragmentation characteristics, as defined by:
- Size of the particle;
- Clast morphology, and
- Particle componentry
Finally, both lava fragments and pyroclasts are defined by:
The measurements are fast, reproducible, robust, statistically significant and easy to perform using instruments at the LMV textural laboratory.