Results for: Andesite

What is an andesitic stratovolcano?

A stratovolcano is a name given to a volcano that has grown by progressive stacking of eruptive products (e.g. lava flows and pyroclastic flows). The term composite volcano i (MORE)

What is andesite?

Andesite is a type of intermediate extrusive igneous rock. It has a moderate amount of silica. Common minerals include plagioclase feldspars, pyroxenes, and hornblende.
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What is an andesite?

a dark, fine-grained, brown or grayish volcanic rock that is intermediate in composition between rhyolite and basalt.
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Uses of andesite?

Andesite is a volcanic rock that is made up of mainly the minerals  augite, plagioclase, and small amounts of hornblende. Its uses  include as building material in construct (MORE)

What describes an andesite?

Andesite are fine-grainedextrusive, igneous volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, such as hornblende, pyroxene or biotite. (MORE)

What is the pH of andesite?

Andesite does not have pH. pH is a measure of how acidic or basic  an aqueous solution is, meaning a solution in which the solvent is  water. Andesite is a rock, not an aque (MORE)

How old is andesite?

Andesite is not any age in particular. Some deposites of andesite  may be hundreds of millions of years old. However, since andesite  is volcanic, some andesite rocks may on (MORE)