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Ash flow - (not preferred
| Глоссарий геологических терминов |
See pyroclastic flow, pyroclastic surge) a highly heated mixture of volcanic gases and ash, traveling down the flank of a volcano or along the surface of the ground; produced by the explosive disintegration of viscous lava in a volcanic crater, or by the explosive emission of gas-charged ash from a fissure or group of fissures. the solid materials contained in a typical ash flow are generally unsorted and ordinarily include volcanic dust, pumice, scoria, and blocks in addition to ash. (also called a pyroclastic flow.) compare - nuee ardente, lahar, pyroclastic. gg
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Pyroclastic, английский
- Pertaining to fragmented (clastic) rock material formed by a volcanic explosion or ejection from a volcanic vent.
- An igneous rock composed of angular rock fragments that originate from a volcanic explosion.
- (adj.) pertaining to clastic rock particles produced by explosive, aerial ejection from a volcanic vent. such materials may accumulate on land or under water. compare - epiclastic, volcaniclastic, clastic. g. smith & hp
- General term for any rock composed of material ejected explosively from
Disintegration, английский
- Of concrete or the like, the deterioration into small fragments or particles.
- Разрушение; дробление, измельчение; распад; расслоение
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Avalanche chute, английский
[preferred term] the central, channel-like corridor, scar, or depression along which an avalanche has moved. an eroded surface marked by pits, scratches, and grooves. gg
Ash [volcanic], английский
Unconsolidated, pyroclastic material less than 2 mm in all dimensions. commonly called "volcanic ash” compare - block [volcanic], cinders, lapilli, tephra. sw & kst
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