- ash-pumice
-
пепловопемзовый
English-Russian dictionary of geology. 2011.
ash-pumice
Смотреть что такое "ash-pumice" в других словарях:
pumice — ALASKA VOLCANO OBSERVATORY GLOSSARY Light colored, frothy volcanic rock, usually of dacite or rhyolite composition, formed by the expansion of gas in erupting lava. Commonly seen as lumps or fragments of pea size and larger, but can also occur… … Glossary of volcanic terms
pumice — a) [ soils ] Volcanic fragments e 2 mm in diameter (i.e., retained upon a standard # 10 sieve), or coherent rock layers (pumice flow), made of light colored, vesicular, glassy rock commonly having the composition of rhyolite. The material… … Glossary of landform and geologic terms
ash flow — (not preferred 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 … Glossary of landform and geologic terms
pumice — Ana, ana ōla i, ōla i, hule ia. Also: h apou, lei ole, au, ho ōne, hau; ana alaea (red), ōahi (pink); elehu (ash colored) … English-Hawaiian dictionary
Mazama Ash — ▪ paleontology volcanic ash deposit widely distributed in the northwestern United States and southwestern Canada. The ash was released by the eruption of Mount Mazama, the event that produced Crater Lake in Oregon. The eruption was a… … Universalium
Bridge River Ash — The Bridge River Ash is a large geologically recent volcanic ash deposit that spans from southwestern British Columbia to central Alberta, Canada. The ash consists of dust sized shards ellipsoidal fragments of pumice. It overlaps the Mount St.… … Wikipedia
Mount St. Helens — This article is about the volcano in Washington State. For the 1980 eruption, see 1980 eruption of Mount St. Helens. For the mountain in California, see Mount Saint Helena. Mount St. Helens … Wikipedia
1980 eruption of Mount St. Helens — Photograph of the eruption column, May 18, 1980 Volcano Mount St. Helens … Wikipedia
Lassen Peak — and Devastated Area from Cinder Cone Elevation 10,462 ft (3,189 m) … Wikipedia
pyroclastic flow — ALASKA VOLCANO OBSERVATORY GLOSSARY A dense, hot, chaotic avalanche of rock fragments, gas, and ash that travels rapidly away from an explosive eruption column, down the flanks of the volcano (synonymous with ash flow ). Pyroclastic flows move at … Glossary of volcanic terms
Ubinas — Volcano seen from the west Elevation 5,672 m (18,609 ft) … Wikipedia
