Answered
Where do you find andesite?
Andesite is an extrusive igneous rock of intermediate composition. This is a volcanic rock that can be found in areas with volcanoes such as, Slovakia.
Results for: Andesite
Answered
Why do andesite and diorite have large crystals?
The reason why all rocks may have large crystals are because of one of the following reasons: If the rock is an igneous rock: Igneous rocks form when magma/l…ava cools. The slower it cools, the larger the crystals because they have more time to develop. If the rock is a metamorphic rock: Metamorphic rocks form from heat and pressure on top of other rocks. The more heat and pressure that builds on top of it, the more likely it will have larger crystals. If the rock is sedimentary rock: Sedimentary rock forms when other rocks get eroded, deposited, compacted, and then cemented together. Usually if the rock takes longer in cementation, it'll have larger crystals. So basically the longer it has to form, the larger the crystals will get. (MORE)
Answered
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.… (Refer to Geology.com -Igneous Rocks) (MORE)
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In Volcanoes
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…s often preferred as it does not suggest that this stacking occurs in neat layers (i.e. 'strata' is a geological term for a layer of rock). Andesite is a type of igneous rock which is characterized by an intermediate amount of silica. It has more silica than basalts (e.g. Hawaii) and less silica than dacites (e.g. Mt. St. Helens).which it means active (MORE)
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How can you use andesite?
Andesite is an igneous rock that can be used in the construction field. Andesite is used mainly for making tiles, bricks, or stones that are suitable for water or landscape ga…rdens. They use andesite to make tiles because they are naturally slip resistant. (MORE)
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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…ion and stone monuments. Its name is derived from where it was first found, the Andes Mountain in South America. (MORE)
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How andesite is formed?
Andesite is a type of volcanic rock. It forms when magma of an intermediate composition, meaning a moderate amount of silica, erupts from a volcano. Eruptions tend to be e…xplosive, producing ash and cinders, but some will produce blocky lava flows instead. (MORE)
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Where can andesite be found?
Andesite can be found around volcanoes with magma of intermediate composition, usually near subduction zones.
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What is the difference between rhyolite and andesite?
They have different compositions. Most igneous rocks fall into a spectrum ranging from mafic (low silica, dominated by iron, magnesium, and calicum) to felsic (high silica, do…minated by sodium and potassium) On this scale rhyolite is felsic while andesite is intermediate. Rhyolite is dominated by the presence of quartz, potassium feldspar, and sodium-rich plagioclase. Rhyolite also tends to contain more volcanic glass. Common colors of rhyolite are light gray, white, and pink. Andesite often contains plagioclase with a fiar balance of sodium and potassium. Plagioclase is also a common dominant mineral. Andesite is darker than rhyolite, ranging from gray to almost black. (MORE)
Answered
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…ous solution. The terms "acidic" and "basic" were once used by scientists to describe the composition of igneous rocks, but this was based on an incorrect interpretation of their chemistry. These terms were replaced with felsic and mafic respectively. In either case, andesite is considered intermediate. (MORE)