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  1. Pyroclastic Flow - an overview | ScienceDirect Topics

    Nov 13, 1985 · 3.6.5 Pyroclastic Flows Pyroclastic flows are products of explosive eruptions and consist of particles of hot molten rock and gases which move rapidly over the ground surface. …

  2. Pyroclastics - an overview | ScienceDirect Topics

    Mar 16, 2013 · Pyroclastic flows containing abundant dense to slightly vesicular rock fragments entrained in an ash matrix (“block-and-ash” flows) are generally of smaller volume and …

  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. Pyroclastic Materials - an overview | ScienceDirect Topics

    Pyroclastic materials refer to volcanic products ejected during explosive eruptions, including pyroclastic density currents, ballistic bombs, scoria, and tephra fallout. These materials are …

  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. 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 …

  7. Pyroclastic density currents: state of the art and perspectives

    Aug 15, 2014 · Pyroclastic density currents (PDCs) are among the most amazing natural phenomena, and involve some of the most complex and dangerous processes occurring …

  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. Lithologic classification of pyroclastic rocks: A case study for the ...

    Jul 1, 2022 · With the ongoing discovery of volcanic oil and gas reservoirs, pyroclastic rocks have begun to attract widespread attention from both the academic and…

  10. 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…