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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. 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…

  3. 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 …

  4. 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 …

  5. 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 …

  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. 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. The effect of pyroclastic flows of the 79 AD eruption of Mount …

    May 1, 2020 · In fact, unlike from the sustained eruption, in the collapsing eruption the pyroclastic flows preserve their density greater than that of the air during all phases of the event, as …

  9. The 79 CE eruption of Vesuvius: A lesson from the past and the …

    Aug 1, 2022 · The pyroclastic currents caused the destruction of some Roman Villae Rusticae located on the slopes of the volcano such as in Oplontis, partial demolition of buildings in …

  10. 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…