|
| |
|
|
|
|
|
|
|
|
|
igneous rock |
|
| |
|
| One of the three main types of rock: igneous rocks form when molten magma cools and crystallizes. Extrusive igneous rock, such as basalt, forms at the Earth\'s surface; rapid cooling results in small crystals. Intrusive igneous rock, such as granite, solidifies beneath the Earth\'s surface; slow cooling results in large crystals. Compare metamorphic rock; sedimentary rock. |
|
|
|
|
Bookmark this page:
|
|
|
|
<< former term |
|
next term >> |
|
|
|
|
|
| |
|
|
| Other Terms : HIV (human immunodeficiency virus) | fractional crystallization | a.c.
|
| |
|
Home |
Add new article |
Your List |
Tools |
Become an Editor |
Tell a Friend |
Links |
Awards |
Testimonials |
Press |
News |
About
| Imprint |
|
Copyright ©2009 Globalscience24. All rights reserved. Terms of Use | Privacy Policy | Contact Us
|
