A review of statistical tools for morphometric analysis of juvenile pyroclasts

Morphometric analyses are based on multiparametric data sets that describe quantitatively the shapes of objects. The stochastic nature fracture formation processes break up magma during explosive eruptions yields mixtures particles have highly varied shapes. In volcanology, morphometric analysis is applied to these with diverse for two purposes: (1) fingerprint tephra from individual and use fingerprints distinguish among layers determine their extents (2) reconstruct eruption processes, by linking formed known fragmentation in experiments natural pyroclastic deposits. Here, we review most commonly adopted statistical techniques pyroclasts. We provide objects different shapes, along data, order demonstrate illustrate methods. They can be used not only addressing eruptions, but also characterization other types solid complex morphologies.