Web Results

Intrusive rock - Wikipedia


Intrusive rock forms within Earth's crust from the crystallization of magma. Magma slowly pushes up from deep within the earth into any cracks or spaces it can ...

Intrusive Igneous Rocks | Mineralogy4Kids


Intrusive, or plutonic, igneous rocks form when magma cools slowly below the Earth's surface. Most intrusive rocks have large, well-formed crystals. Examples ...

Igneous Rocks | Pictures of Intrusive and Extrusive Rock Types


Photographs and descriptions of intrusive and extrusive igneous rocks with links to detailed articles by Geology.com.

intrusive rock | geology | Britannica.com


Intrusive rock, also called plutonic rock, igneous rock formed from magma forced into older rocks at depths within the Earth's crust, which then slowly solidifies ...

Intrusive rock | Define Intrusive rock at Dictionary.com


Intrusive rock definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

What is the difference between extrusive and intrusive igneous rocks ...


ex' means 'out' and 'in' means 'in'. Extrusive igneous rocks reach surface still mostly liquid (lava) and crystallize quickly in the relative chill of surface conditions , ...

Intrusive Rocks | Natural Resources


Intrusive Rocks. Granite. A medium- to coarse-grained intrusive igneous rock composed of potassium- and sodium-rich feldspar, quartz, minor plagioclase, and ...

Igneous Rocks - ScienceViews.com


Both magma and lava cool and harden to form igneous rocks. Intrusive vs. Extrusive. Igneous rocks can be classified into two main categories: intrusive and  ...

Intrusive Igneous Rocks - Windows to the Universe


Jun 17, 2003 ... Rocks that form in this way are called intrusive igneous or plutonic rocks. The mineral crystals within them are large enough to see without a ...

Intrusive Rock Types - CliffsNotes


Intrusive rocks crystallize from magmas that have been intruded into the earth's crust at depths far below the surface. These intrusions are then usually expose.

More Info

Intrusive and Extrusive Rocks - HyperPhysics


Igneous rocks which form by the crystallization of magma at a depth within the Earth are called intrusive rocks. Intrusive rocks are characterized by large crystal  ...

Intrusive and Extrusive Igneous Rocks ( Read ) | Earth Science | CK ...


Aug 1, 2016 ... Igneous rocks are called intrusive when they cool and solidify beneath the surface. Intrusive rocks form plutons and so are also called plutonic.

Intrusive Rocks: Definition & Examples - Video & Lesson Transcript ...


If you've ever looked up at Half Dome in Yosemite National Park, Mt. Rushmore in South Dakota, or Stone Mountain in Georgia, you were looking at intrusive ...