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No. Although a pyroclastic eruption will produce toxic gasses, the pyroclastic material itself consists of sperheated ash, pumice, and rock fragments.

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What is a pyroclastic flow in volano?

Pyroclastic flow is gas that result from water mixing with loose material on the steep sides of a volcano.


Which pyroclastic material is the most dangerous?

Pyroclastic flows are the most dangerous type of pyroclastic material. They are fast-moving currents of hot gas and volcanic debris that can reach speeds of over 100 mph and temperatures of up to 1,000°C. These flows can devastate everything in their path and are a significant hazard associated with explosive volcanic eruptions.


What material is not a form of pyroclastic material?

Water is not a form of pyroclastic material. Pyroclastic material refers to fragmented volcanic rocks, ash, and other debris expelled during volcanic eruptions.


Are magma and rock both pyroclastic materials?

No. Magma is molten rock that is beneath earth's surface. When it erupts it can form lava or pyroclastic material. Although pyroclastic material can form rocks, most rocks are not from pyroclastic material.


Is a rock a pyroclastic material?

Some rocks are pyroclastic but most are not.


Is Pyroclastic rock basic or acid?

Pyroclastic material is more often felsic (acidic) or intermediate, but mafic (basic) pyroclastic material may also occur.


What kind of material comes out of Mt Etna lava or pyroclastic material?

Mt Etna produces basaltic lava, which is low in silica and flows more easily. It also releases pyroclastic material, which is a mix of hot rock fragments, ash, and gas released during volcanic eruptions.


Can rhyolite be pyroclastic?

Yes. It is not uncommon for rhyolitic material to form pyroclastic flows.


What do you call the fast-travelling stream of hot gas and fragmental material that is produced during an explosive volcanic eruption?

Pyroclastic flow


What is a material other than a gas which is known to be so toxic to humans that it poses a health hazard during transportation?

A material, other than a gas, that is known to be so toxic to humans that it poses a health hazard during transportation, is a regulated hazardous material (dangerous good) in Division 6.1 Poisonous Material.


What class or division contains toxic or poisonous substance?

Poisonous gas is Division 2.3 in the DOT hazardous materials classification system.


What hazardous material placard describes the presence of a poisonous gas?

A placard identifying hazard class 6 describes the presence of a poisonous gas. For an image, see the related link, below.