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  1. Pyroclastic Flow - an overview | ScienceDirect Topics

    Nov 13, 1985 · Pyroclastic flows are defined as rapid movements of hot molten rock and gases that result from explosive volcanic eruptions or large-scale collapses of volcanic domes. These …

  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. Pyroclastic Density Currents: Processes and Models

    Jan 1, 2015 · Pyroclastic density currents (PDCs) are gravity currents produced by the collapse and lateral spreading of particle-laden mixtures produced during volcanic eruptions.

  4. 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…

  5. The hazards of unconfined pyroclastic density currents: A new …

    Jan 1, 2022 · Pyroclastic density currents (PDCs) are the deadliest volcanic hazard, accounting for nearly a third of all historical volcano-related fatalities (Brown et al., 2017). They are also …

  6. Pyroclastic Deposit - an overview | ScienceDirect Topics

    Pyroclastic deposits are defined as accumulations of volcanic materials formed by the explosive fragmentation of magma during eruptions, which can be emplaced rapidly over large areas. …

  7. Inside pyroclastic density currents – uncovering the enigmatic flow ...

    Jan 15, 2017 · Pyroclastic density currents (PDCs) are the most lethal threat from volcanoes. While there are two main types of PDCs (fully turbulent, fully dilute p…

  8. 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 …

  9. 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 deposit formation, including …

  10. Pyroclastic Materials - an overview | ScienceDirect Topics

    Pyroclastic flow As discussed previously, pyroclastic flows can form when an eruption column collapses, or as the result of gravitational collapse or explosion on a lava dome or lava flow …