Pyroclastic material is ejected from a volcano during an explosive eruption. These fragments are defined by their size, which ranges from less than 2 mm to greater than 64 mm.
Ashis less than 2 mm in diameter, with an appearance of dust or sand.
Lapilli, or cinders, range from 2 mm to 64 mm in diameter. These pyroclasts are commonly pea to walnut sized. Blocksand bombsrepresent the largest fragments, which are greater than 64 mm.
Blocksare erupted as hardened lava with a mostly angular shape, while bombsaresemi-molten and develop a streamlined-shape while flying through the air. HelpReset
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Pyroclastic material is ejected from a volcano during an explosive eruption. These fragments are def...
Mathematics, 07.10.2019 23:10