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  1. Pyroclastic Flow - an overview | ScienceDirect Topics

    Nov 13, 1985 · Pyroclastic flows have a relatively dense basal avalanche that exhibits laminar flow and an overriding, expanding turbulent ash and steam cloud. Ash from the basal …

  2. Pyroclastics - an overview | ScienceDirect Topics

    Mar 16, 2013 · PDC, or pyroclastic density current, is defined as a fast-moving flow of hot gas and volcanic matter that can exert dynamic pressure on structures, potentially leading to their …

  3. Fluidization in pyroclastic flows - ScienceDirect

    Apr 15, 2024 · Pyroclastic flows are mixtures of gas and particles generated by gravitational collapse of lava domes or fall-back of eruption columns during explosiv…

  4. Mobility and emplacement of an ancient, large-volume pyroclastic …

    Aug 1, 2023 · Pyroclastic flows are the most devastating phenomena of explosive volcanic eruptions. These hazardous fast-moving, hot, concentrated density currents …

  5. Pyroclastic Fall Deposits - ScienceDirect

    Pyroclastic fall deposits form during explosive eruptions by the sedimentation of pyroclasts through the atmosphere from an eruption jet and/or plume. They are the simplest of pyroclastic …

  6. Towards a quantitative understanding of pyroclastic flows: Effects …

    Apr 15, 2015 · The broad spectrum of pyroclastic flow types range from short-lived, highly unsteady flows generated by lava dome collapse or by fallback of vulcanian eruption columns, …

  7. Unravelling the dynamics and hazards of the June 3rd, 2018, …

    Apr 1, 2023 · The June 3rd, 2018, eruption of Fuego volcano (Guatemala) produced a complex sequence of small-volume pyroclastic density currents (PDCs) that inundated all sectors …

  8. Insight into the 2021 Semeru volcano eruption from rapid …

    Nov 1, 2024 · The objective of this study is to map the pyroclastic deposits resulting from the Semeru eruption in 2021 and to analyse the process of pyroclastic de…

  9. Submarine pyroclastic deposits from 7.3 ka caldera-forming Kikai ...

    Apr 1, 2024 · Extensive submarine pyroclastic deposits were discovered around the Kikai caldera, Southwest Japan, which originated from the caldera-forming Kikai-Ak…

  10. Overview of the 1990–1995 eruption at Unzen Volcano

    Apr 1, 1999 · Download: Download full-size image Fig. 1. Photograph showing eastern side of Unzen volcano. Aprons of pyroclastic-flow deposits extend around the lava dome formed in …