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Yes. Fast cooling of magma causes small crystal size or no crystal at all.

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โˆ™ 2008-12-17 04:11:36
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Q: Does fast cooling causes small grains?
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Related Questions

Do fast cooling causes small grains?

yes it does

How can you tell if a rock is cooled fast or slow?

Slow cooling produces large grains, fast cooling produces fine-grains in the rock.

Does slow cooling of igneous rocks form large or small crystal grains?

Slowing cooling produces large crystals eg granite. Fast cooling makes much smaller crystals eg basalt

Do fast cooling rocks form large crystals?

No. Fast cooling rocks form small crystals.

How can you tell if a rock cooled fast or slow?

The slower the cooling the larger the grains in the rock.

What effect does a fast cooling rate have on grain size in igenous rocks?

fast cooling caurses fine grain ignous rocks and slow cooling causes course grain

How will cooling affect maple syrup crystal size?

Fast cooling=small crystals Slow cooling=big crystals

Magma cooling in 2 stages slow and then fast what is the resulting texture?

The resultant rock would have a porphyritic texture; large crystals (usually feldspars) scattered among small crystal grains.

Why is basalt fine-grained?

Basalt is fine grained because it is rapidly cooled from molten material. Rapid cooling inhibits the growth of large mineral crystals, as the time that they are allowed to form and grow is lessened.Basalt grains are small because of fast cooling.

Why are some igneous rocks coarse and others are fine?

It depends on the rate of cooling fast cooling=small crystals slow cooling=large crystals

Why does fast cooling produce small crystals?

Crystals take time to form. Slow cooling rocks like granite have large crystals, but faster-cooling rocks like basalt have small or no crystals.

How does the rate of cooling impact the formation of igneous rocks?

The rate of cooling affects the crystal size of the minerals in the igneous rocks. Slower cooling, larger crystals. Fast cooling, small crystals.

What does lava that cools quickly form?

fast cooling lava -small crystals or no crystals

What is Grain Size of metal?

Metals are made up of lots of individual crystals known as grains. different grains may have different alignments (i.e. the repeating pattern of atoms in the grain will point in a different direction to those in a neighbouring grain). In some cases they may also have differences in chemical composition (e.g. steel may split into cementite, perlite and ferrite grains). Grains size is generally determined by heat treatment, particularly cooling rates. grains can vary from micron sizes to several centimetres. fast cooling rates from molten metals results in small grains, slow cooling rates in larger ones. grains can grow larger (at the expense of their neighbours) if a metal is heated to near it's melting point. you can see grains in most metals by polishing, etching and examining under a microscope.

What effect does a fast cooling rate of magma or lava have on grain size in igneous rock?

Fast cooling lava or magma creates an aphanitic or small crystal (grain) textured igneous rock.

What size crystals result from fast cooling?

small, because they did not have the time to grow any larger

Do grains mold fast?


What determines crystal size?

It depends on the cooling of lava. Slow cooling forms big crystals deep under the surface while fast cooling creates small crystals on or just below the earths surface. Itstant cooling wouls have no crystals.

What is the rate of cooling in reference to magma and lava?

The rate of cooling is the speed at which magma or lava crystallizes. When the speed is slow it results in big crystals. When the speed is fast it results in small crystals.

Which is fomed by fast cooling lava--pumice granite or basalt?

Pumice is the result of extremely fast cooling lava.

Does Pumice have small or big grains?

Pumice normally doesn't have any grains at all. It would be very unusual for it to have grains. Just like Obsidian, Pumice is cooled too fast to have any grains in it. One of the biggest differences between them is that Pumice is cooled with pockets of air while Obsidian has a glassy look.

How fast do sand dunes move?

As fast as the wind carries grains of sand

What effects does the cooling time of an igneous rock have on its crystal size?

Fast cooling causes smaller crystals to form than when the rocks cools slowly. An igneous rock that cooled quickly is basalt, while a slow-cooler is granite.

What are Asteroids marked by?

Craters and fast cooling

When magma cools quickly what kind of crystals will the rock have and why?

== == The crystals will be small or may not form at all. Fast cooling magma produces small crystals. Slow cooling magma produces larger crystals. The longer a mineral has to form at its crystal growing temperature range, the larger the crystals will be.