pyroclast

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pyroclast

[′pī·rə‚klast]
(geology)
An individual pyroclastic fragment or clast.
References in periodicals archive ?
The extreme temperatures of rocks and gas inside pyroclastic flows, generally between 200 degrees C and 700 degrees C (390-1300 degrees F)," the U.
State volcanologists advised the public to be additionally vigilant against pyroclastic density currents, lahars and sediment-laden stream flows along channels draining the edifice.
pyroclastic flows that will vaporize everything in their path.
A total of two (2) explosion-type earthquakes corresponding to the vertical column eruptions, fifteen (15) tremor events, some corresponding to lava fountaining episodes, thirty five (35) rockfall events and (2) pyroclastic density currents or PDCs from lava collapse were recorded by Mayon's seismic monitoring network," it said.
The pyroclastic accumulation to the north is slightly darker, and that's where water is adsorbed or bonded with ash deposits.
It maintained the alert level at 3 on a scale of 5, warning that areas within three kilometres of the crater could be exposed to volcanic rocks and pyroclastic flows, a mixture of ash, gas and lava.
A pyroclastic flow comes from which natural structure?
By looking at the orbital data, we can examine the large pyroclastic deposits on the Moon that were never sampled by the Apollo or Luna missions.
Mineralization takes place as quartz-pyrite stock-works accompanied by potassic-argillic alteration in rhyolite-dacite pyroclastic volcanic rocks.
Students were also exposed to the effects of the AD79 eruption and the devastation this caused to Pompeii and Herculaneum for example, the site of Herculaneum being buried 16 metres in pyroclastic flow or the bodies of victims encased in ash at Pompeii.
The 2016 edition of the esteemed series features lengthy articles on the fluid mechanics of heart valve replacements and pyroclastic density currents, and the dynamics of vortex pairs, microtubules, and motor protein assemblies.
A first-time visor might eke out just enough for Pyroclastic to set the world alight in division one of the Ladbrokes Handicap at Lingfield.