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volcanic ash is made of fine rock powder and is usually grey in color. It is formed when gas in the volcano vent causes an explosions which shatter the hot (sticky magma of a stratovolcanoe) flinging it high into the air from where it descends back to earth as a fine powder made of sharp (microscopic) shards which are bad to breath in.
The ash can fall a long way form the volcano (down wind) and can accumulate to many meters thick. The ash gradually compacts and solidifies into rock but before this happens, if there is a heavy rain storm the ash can form a thick mud which flows like a river (caled a lahar) down the volcano. Lahars can be very distructive.
What else can I help you with?
The easiest way to distinguish between volcanic ash and volcanic dust particles is to compare their?
The easiest way to distinguish between volcanic ash and volcanic dust particles is to compare their diameter. Seismographs can be useful in predicting volcanic eruptions because they measure earthquake activity.
Why was mount shasta called The lighthouse of pacific?
Mount Shasta is a volcanic peak in North California, which is in the Cascade Range. It is called the Lighthouse of the Pacific because mariners witnessed an ash cloud during its eruption in 1786.
Which thing when it dry 1 kg wet 2 kg and ash 3kg?
1kg - dry ash 2kg - wet ash 3kg - ash.
Is white ash a hardwood or softwood?
white ash is a softwood
What is the specific gravity of fly ash?
specific gravity of fly ash is 3.2
Are there different types of volcanic ash?
Volcanic ash is created when solid rock shatters and magma separates into minute particles during explosive volcanic activity. Its chemistry depends on the chemistry of the magma and rock involved. Ash can be characterized based on whether it is mainly consolidated or mainly unconsolidated. Mainly unconsolidated ash can be * Agglomerate * Layer, Lapilli Tephra * Coarse Ash * Fine Ash Mainly consolidated ash can be: * Agglomerate, pyroclastic breccia * Lapilli Tuff, Lapillistone * Coarse (ash) Tuff * Fine (ash) Tuff
What is volcanic tuff?
Volcanic tuff is a type of rock formed from volcanic ash that has been compacted and solidified. It often has a porous and lightweight texture, and can vary in color depending on the types of minerals present in the ash. Tuff can be found in areas with past volcanic activity.
What is ash mixed with rain forming a cement like rock called?
Ash mixed with rain forming a cement like rock is called tuff. Tuff is a type of rock composed of volcanic ash and other volcanic debris that has been consolidated and hardened.
What is tephor?
Tephor is a type of volcanic ash. Tephor is a type of volcanic ash.
Does volcanic ash create basalt?
No. While volcanic ash can have a basaltic composition, it usually does not. Basalt forms from lava. Volcanic ash forms tuff.
What is made of volcanic ash cinders and bombs?
Volcanic ash, cinders, and bombs are called tephra.
What is specific health problem that volcanic ash can cause?
Volcanic ash can cause lung problems from breathing the ash in.
What is the scientific name for a volcanic ash cloud?
The scientific term for a volcanic ash cloud is "volcanic ash plume" or "volcanic ash cloud." When a volcano erupts, it releases ash, gases, and other volcanic material into the atmosphere, creating a plume that can pose hazards to aircraft, human health, and the environment.
What does volcanic ash release?
Volcanic ash releases a lot of things, one such thing is Sulfur.
Volcanic particles about the size of a rice grains are called?
Volcanic particles about the size of rice grains are called volcanic ash. Ash is made up of small rock and mineral fragments that are expelled during a volcanic eruption.
What volcano word starts with t?
tectonic is related with volcano so it tectonic can be part of the answer as well
Volcanic ash has occasionally formed molds of animals this occurs when the ash covers the animals and?
Volcanic ash has occasionally formed molds of animals. This occurs when the ash covers the animal and -
