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What are igneous rocks that form over the surface?
Rhyolititcen rocks.
What kind of igneous rocks for on earths surface?
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
How do fine- grained igneous rocks from?
extrusive igneous rocks =/
What grain type is found in extrusive igneous rocks?
Extrusive igneous rocks are usually fine grained.
Are volcanic rocks igneous rocks?
Yes. Volcanic rocks are extrusive igneous rocks.
What are types of extrusive igneous rocks?
Extrusive igneous rocks are igneous rocks that form above earth's surface. They are usually fine-grained due to the rate in which they cool.
Which is not a common extrusive igneous rock?
There are so many rocks that can be classified as not a common extrusive igneous rock. The most common extrusive igneous rock is basalt. Extrusive rocks are formed as a result of lava solidifying.
Igneous rocks formed from lava on Earth's surface?
Extrusive igneous rocks.
What is the difference between an intrusive and an extrusive igneous rocks?
"intrusive" means forced into something, "extrusive" means forced out onto the surface. The igneous magma reaching the surface is therefore extrusive , producing extrusive igneous rocks, and all the rest of the magma is intrusive, producing intrusive igneous rocks.
What does extrusive igneous rock form from?
An extrusive igneous rock is when a volcano erupts and magma flows down, then cools, forming rocks.
Is extrusive a rock?
Igneous rocks can be categorized as either extrusive or intrusive.
Magma that is rejected during a volcanic eruption forms igneous rocks?
Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.
