- pyroclastic cloud
- the cloud of gas, ash, dust, stones and rocks emitted during a highly explosive volcanic eruption.
Geography Dictionary & Glossary for Students \\ ITS Tutorial School (ITS) - Hong Kong.
pyroclastic cloud
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Pyroclastic flow — Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 1984 … Wikipedia
pyroclastic surge — ALASKA VOLCANO OBSERVATORY GLOSSARY A low density, turbulent flow of fine grained volcanic rock debris and hot gas. Pyroclastic surges differ from pyroclastic flows in that they are less dense and tend to travel as a low, ground hugging, but… … Glossary of volcanic terms
pyroclastic flow — ▪ volcanism in a volcanic eruption, a fluidized mixture of hot rock fragments, hot gases, and entrapped air that moves at high speed in thick, gray to black, turbulent clouds that hug the ground. The temperature of the volcanic gases can… … Universalium
Pyroclastic surge — A pyroclastic surge is a fluidized mass of turbulent gas and rock fragments which is ejected during some volcanic eruptions. It is similar to a pyroclastic flow but contains a much higher proportion of gas to rock, which makes it more turbulent… … 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
pyroclastic surge — A low density, dilute, turbulent pyroclastic flow, usually very hot, composed of a generally unsorted mixture of gases and comparatively low concentrations of pyroclastic particles (ash, pumice, and dense rock fragments) that travels across… … Glossary of landform and geologic terms
Mushroom cloud — created by smoke billows Ascending cloud from Redoubt Vol … Wikipedia
ash cloud — GLOSSARY OF VOLCANIC TERMS A cloud of ash produced during pyroclastic eruptions (Miller, 1989). These clouds can result from rapid rising of the hot, buoyant ash rich eruptive plume, or can be derived by elutriation at the top of a pyroclastic… … Glossary of volcanic terms
Mount Pelée — Mount Pelee Elevation 1,397 m (4,583 ft) … Wikipedia
Ludger Sylbaris — (born circa 1875 died circa 1929), born either August Cyparis or Louis Auguste Cyparis, was an Afro Caribbean man who travelled with the Barnum Bailey circus. He had become something of an early 20th century celebrity for being the (reported)… … Wikipedia
