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How is an igneous rock's texture determined by the rate of cooling of magma?
Wiki User
∙ 8y ago
yes, slowly cooling magma will crystallize (granite). If it cools quickly, the lava will have very small crystals and will contain air pockets (pumice, if it is cooled in chunks) or can even be very thin, like hair, very straight. (Pele's hair)
Rhett Strosin
Wiki User
∙ 11y agoyes, slowly cooling magma will crystallize (granite). If it cools quickly, the lava will have very small crystals and will contain air pockets (pumice, if it is cooled in chunks) or can even be very thin, like hair, very straight. (Pele's hair)
Wiki User
∙ 10y agoThe faster the rate of cooling the smoother the rock will be. The slower the rate the more rough the texture.
The faster it cools the finer the texture of the rock. Slower cooling magmas tend to form courser grained igneous rocks. The more time a magma has too cool, the larger the crystals will be
If all the minerals in the magma cools at about the same rate you will have roughly equal sized grains in the rock, in which case the rock will be of phaneritic texture. However you will have conditions in which some of the minerals will solidify while other minerals remain liquid, meaning those that have more time to solidify will have larger crystals . The minerals that solidify will have more time to grow as crystals while the other minerals in that magma will have less time and space to grow as crystals meaning those minerals will have smaller crystals. These rocks with crystals of various sizes are called porphoritic rocks (or porphory)
Wiki User
∙ 8y agoRocks are made of mineral crystals.
Crystals "crystallize" out of molten magma.
The longer the magma take to cool the bigger the crystals grow.
The texture of a rock is determined by the size of crystals it is made from.
Therefore the texture of a rock that cools quickly from a magma (such as an extrusive lava) is fine grained while the texture of a magma that cooled slowly, deep in the earth is course grained.
Wiki User
∙ 11y agoIf the magma or lava cools slowly, then the crystals will be bigger (coarse grain). If the magma or lava cools quickly, then the crystals will be smaller ( fine grain).
Wiki User
∙ 8y agosomeone answer this for me
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What factors can effect the texture of a igneous rock?
The texture is determined by the rate it takes the molten to cool to form the rock.
What factors can affect the texture of an igneous rock?
The length of time the magma had to cool
How is the size of mineral crystals in igneous rock related to the rate at which they cool?
When igneous rocks cool quickly, they have small crystals and have a texture that may be described as aphanitic. When igneous rocks cool slowly, they have much larger crystals and have a texture that may be described as phaneritic or pegmatitic.
How does the rate of cooling affect the type of igneous rock formed?
The rate at which the rock cool from the liquid magma determines their texture
An intrusive igneous rock will have what type of texture?
Intrusive igneous rock has a coarse, visible crystalline texture. Intrusive igneous rocks are formed from slow cooling of magma. The additional time spent in a liquid state allows for the creation of larger mineral crystals. An igneous rock with a coarse texture is said to be phaneritic.
What factors can effect the texture of a igneous rock?
The texture is determined by the rate it takes the molten to cool to form the rock.
What determine the texture of igneous Rock?
The texture is mostly determined by the time spent in cooling from magma or lava. The quicker the transition from molten to solid, the finer the texture.
What factors can affect the texture of an igneous rock?
The length of time the magma had to cool
What kind of igneous rock texture results from slow cooling magma?
A coarse grained texture, referred to as a phaneritic texture, will be the resultant igneous rock texture. The slower the magma cools the more time minerals have to crystallize and thus grow bigger.
How is the texture of an igneous rock related to the rate which it cooled?
Quick cooling of magma results in small crystal formation. Slow cooling magma results in larger crystals.
Is the texture of an igneous rock determined by the composition of the magma?
No. The texture is determined by the amount of time the magma had to cool and solidify. Slow cooling magmas produce larger crystals and therefore have a coarse grained texture. Quick cooling magma or lava produce small crystals and a fine grained rock texture.
What does magma have to do with igneous rocks?
Igneous rocks are formed by cooling magma.
Igneous rocks are formed when magma does what?
The Igneous rock formed when magma cools are; 1. Extrusive (Volcanic) Igneous Rock; which are igneous rocks formed when magma cools outside the earths crust. The texture of of extrusive igneous rock is fine grained. 2. Intrusive (Plutonic) Igneous Rock; these are igneous rocks formed by gradual cooling of magma within the earths crust. The texture is coarse grained.
How is the size of mineral crystals in igneous rock related to the rate at which they cool?
When igneous rocks cool quickly, they have small crystals and have a texture that may be described as aphanitic. When igneous rocks cool slowly, they have much larger crystals and have a texture that may be described as phaneritic or pegmatitic.
How does the rate of cooling affect the type of igneous rock formed?
The rate at which the rock cool from the liquid magma determines their texture
An intrusive igneous rock will have what type of texture?
Intrusive igneous rock has a coarse, visible crystalline texture. Intrusive igneous rocks are formed from slow cooling of magma. The additional time spent in a liquid state allows for the creation of larger mineral crystals. An igneous rock with a coarse texture is said to be phaneritic.
What causes igneous rock to form?
Igneous rock is formed from the cooling and solidification of magma or lava.
