Fig. 6From: Influence of particle aggregation on the tephra dispersal and sedimentation from the October 8, 2016, eruption of Aso volcanoComparison of coated particles and core particles after removing their fine ash coating. a Unwashed samples and b washed samples from site ASP (3.6 km from vent) sieved to 2–3ϕ. The unwashed ash mostly consists of particles coated by finer ash particles. Gridded scales are 1 mm. AP1 accretionary lapilli 1, AR altered rock, GTL gray tuff/lava, GS glass shard, M mineral, OC opaque clastBack to article page