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Answered 2009-09-30 22:24:22

coarser grained

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Related Questions

What type of texture do extrusive rock such as basalt have?

A fine crystalline texture technically known as an Aphanitic texture.


Is scoria an intrusive or extrusive rock?

Scoria is an extrusive igneous rock with a vesicular texture.


What texture does and extrusive igneous rock have?

fined grain texture


What is Andesite texture?

Andesite texture is fine-grained and Extrusive plus it a type of igneous rock.


What is the texture of the rock andesite?

The texture of Andesite rock is fine-grained and it Extrusive plus it is an igneous rock .


What are some characteristics of extrusive rock?

Extrusive igneous rock can be: fine-grained/glassy in texture or vesicular - when compared to intrusive igneous rock.


How can you determine if an igneous rock has had an intrusive or extrusive origin?

By its texture.


What can you tell about an igneous rock that has a fine texture?

It is most likely extrusive.


What type of rock is extrusive or intrusive?

Igneous rock is classified as extrusive or intrusive.


Is it true that intrusive rocks have similar crystals than extrusive rocks?

no. Extrusive rocks are usually have bigger crystals and a rougher texture, unless you notice obsidian and another type of extrusive rock don't have crystals, at all


What is the relationship between igneous rock's texture and where its formed?

The relationship between an igneous rock's texture and where it was formed is that the texture depends on whether or not the rock is an extrusive rock or an intrusive rock. Those two different types of classifications for rocks tell you what the texture will be. For example, Intrusive rocks have a coarse-grained texture like granite and extrusive rocks have a fine-grained texture like basalt.


What is the relationship between an igneous rocks texture and where it was formed?

The relationship between an igneous rock's texture and where it was formed is that the texture depends on whether or not the rock is an extrusive rock or an intrusive rock. Those two different types of classifications for rocks tell you what the texture will be. For example, Intrusive rocks have a coarse-grained texture like granite and extrusive rocks have a fine-grained texture like basalt.


What extrusive igneous rock has a mafic composition and a glassy texture?

Basaltic glass


Texture would be most unlikely to occur in an extrusive igneous rock?

phaneritic


What is a term that describes an igneous rock texture in which crystals are present but are not visible?

extrusive


What type of texture do extrusive rocks such as basalt have?

Small grained texture from small crystal size.


How can texture provide clues as to how and where a rock forms?

Yes. If a rock has certain textures you can tell if it's intrusive or extrusive.


How do you distinguish intrusive igneous rock from extrusive igneous rock?

The main characteristic to look for is mineral crystal size. Extrusive rock will exhibit an aphanitic texture, where individual crystals are not visible without magnification. Intrusive rock will exhibit phaneritic texture, where individual crystals are visible without magnification.


What is extrusive igneous rock?

Extrusive igneous rock is formed from the solidification of lava on or above the surface. Rapid cooling from exposure to air or water results in rapid crystallization of their component minerals, normally creating a fine grained texture as opposed to intrusive igneous rock which has a coarser texture. Examples of extrusive igneous rock would include obsidian, pumice, basalt, and rhyolite.


Type of crystal grain that forms when molten rock cools quickly?

Small crystal grains form when molten rock cools quickly. In an extrusive igneous rock, it's referred to as aphanitic texture.


What type of rock is a volcano from?

Volcanic rock is extrusive igneous rock.


What type of rock is rhyolite?

Rhyolite is an extrusive igneous rock.


What type of rock is Basalt?

Basalt is an extrusive igneous rock.


What type of rock is andesite?

Andesite is an extrusive igneous rock.


What type of rock is scoria?

Scoria is an extrusive igneous rock.