The skeletons' final resting place, a bumpy bed of volcanic rock covered by pumice, provided a precise ... scalding explosions that left blue-black burn marks on the bone. Moisture from vaporized ...

From A to H, light-gray pumice, black pumice, brown pumice, gray-banded pumice, black-and-white-banded pumice, white pumice, pink pumice, and obsidian-bearing pumice. I, J, and K show goose ...

The JMA collected rock specimens from the eruption on Aug. 22 using its maritime meteorological observation vessel in waters 300 km northwest of Fukutoku-Okanoba. A chunk of pumice volcanic rock ...