2007-03-11 10:07:49 · 6 answers · asked by ivory_plr 4 in Environment
It is a rock that was formed when magma pushed through the earth's crust to form lava, and then hardened into rock. Igneous rocks are formed from lava (above ground) or magma (underground).
Some examples of igneous rock are granite, pumice, obsidian and scoria.
Here is an animation of how igneous rock is formed:
http://www.fi.edu/fellows/fellow1/oct98/create/igneous.htm
2007-03-11 10:11:42 · answer #1 · answered by Bad Kitty! 7 · 0⤊ 0⤋
Igneous Extrusion
2017-01-03 13:48:59 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Extrusions Definition
2016-11-14 06:46:50 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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RE:
What is an igneous extrusion?
2015-08-06 18:37:22 · answer #4 · answered by Anonymous · 0⤊ 0⤋
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extrusions mean to leave, intrusions mean to enter as you know. Ig. Int. is a rock that was formed when magma pushed through the earth's crust to form lava, and extrusions is the opp
2016-04-06 05:52:34 · answer #5 · answered by ? 4 · 0⤊ 0⤋
either that's not a word or it's spelled wrong
2007-03-16 10:43:05 · answer #6 · answered by Anonymous · 0⤊ 1⤋
that sucks
2016-03-17 04:51:38 · answer #7 · answered by Anonymous · 0⤊ 0⤋