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Batholith is the name for a huge igneous intrusion.

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Why are the rocks in a large igneous intrusion coaser grained than the rocks in a small igneous intrusion at the same depth?

The minerals had longer to form from the hot magma than did the minerals in the small intrusion, which would have cooled much faster.


What is it called when magma slowly cools far beneath the earths surface?

An igneous intrusion.


What is the name of a large igneous intrusion made of rock types which may include granite and quartz?

batholith


Did the fault occur before or after the igneous intrusion?

To determine whether the fault occurred before or after the igneous intrusion, geologists typically analyze the relationships between the rock layers and the intrusion. If the fault cuts through the igneous rock, it indicates that the fault occurred after the intrusion. Conversely, if the intrusion is found within the fault zone or is displaced by the fault, it suggests that the fault predates the igneous intrusion.


This massive underground lava upwelling is sometimes called an igneous what?

When magma below the earth's surface penetrates the crust but does not break the surface, it is called an igneous intrusion.


What rocks are formed from the heat of a magma chamber?

Intrusive Igneous rocks


What is an igneous intrusion?

Stock Batholith


HOW does composition layering occur in igneous bodies?

A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture.


What do you call the layering in igneous rocks?

"layering" As in "layered" igneous intrusion.


What is the geologic term for a tabular body of igneous rock that is parallel to the surrounding rock layers?

It's called a concordant igneous intrusion, or a sill.


What type of igneous body is Mount Rushmore?

Mount Rushmore is a granite batholith, which is a large and deep-seated igneous intrusion that forms beneath the Earth's surface. It is composed of granitic rock, specifically a type called Harney Peak granite.


How does igneous intrusion end up as a hill?

Basically, igneous intrusion involves the solidifying of magma when it cools in the crust of the Earth. When magma rises through the crust, it intrudes into the existing sedimentary rock layers and forms a hill. The surounding rock may be more prone to erosion and wear away leaving the intrusion jutting above the (eroded) surroundings.