Peléan eruption: 1 Ash plume, 2 Volcanic ash fall, 3 Lava dome, 4 Volcanic bomb, 5 Pyroclastic flow, 6 Layers of lava and ash, 7 Stratum, 8 Magma conduit, 9 Magma chamber, 10 Dike. Peléan eruptions are a type of volcanic eruption.They can occur when viscous magma, typically of rhyolitic to andesitic type, is involved, and share some similarities with Vulcanian eruptions.

Translate Pelean. See 6 authoritative translations of Pelean in English with example sentences, conjugations and audio pronunciations.

A Pelean eruption is associated with explosive outbursts that generate pyroclastic flows, dense mixtures of hot volcanic fragments and gas described in the section Lava, gas, and other hazards. Pelean eruptions are named for the destructive eruption of …

Apr 2, 2025 · Pelean eruptions are named for the destructive eruption of Mount Pelée on the Caribbean island of Martinique in 1902. The fluidized slurries produced by these eruptions are heavier than air but are of low viscosity and pour down valleys and slopes at great velocities.

The stronger eruptive types are Pelean eruptions, followed by Plinian eruptions; the strongest eruptions are called “Ultra-Plinian.” Subglacial and phreatic eruptions are defined by their eruptive mechanism, and vary in strength.

Apr 22, 2021 · Pelean eruptions the most dangerous for many reasons, mainly: pyroclastic flows, lahars and tsunamis. A crater lake can be ejected into lahars during the initial explosion. The massive pyroclastic flows that ensue can generate lahars when they move over a glacier, like with Nevado del Ruiz, and can displace the water of a lake or the sea into a ...

Moderate phreatic or phreatomagmatic eruptions in the Upper Rivière Claire valley were recorded in 1792 and 1851-52. The catastrophic 1902 eruption, which destroyed the city of St. Pierre, became the type-example of Pelean eruptions and marked the onset of modern volcanological studies of pyroclastic density currents. References

这种喷发产生高粘度岩浆，爆发特别强烈，炽热的火山灰云，这是一种高热度气体，全是炽热的火山灰微粒，就象活动的乳浊液，密度大，当它沿山坡向下移动时，足以产生象飓风一样的效果。

培雷型火山喷发（Pelean type eruption）常与黏性的流纹质、英安质或安山质岩浆有关，在喷发的开始阶段由新喷出的多气体岩浆产生火山发光云，随之为最猛烈又具破坏性的火山喷发。

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