write 6 sentences showing the sequence of events in the formation of igneous rocks.?

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write 6 sentences showing the sequence of events in the formation of igneous rocks.?

2006-11-13 08:51:02 · 2 answers · asked by ? 4 in Science & Mathematics ➔ Earth Sciences & Geology

2 answers

I'm not going to write this in 6 sentences for you but...

Igneous rocks are formed when molten rock (magma) cools and solidifies, with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either the Earth's mantle or crust. Typically, the melting is caused by one or more of the following processes -- an increase in temperature, a decrease in pressure, or a change in composition.

2006-11-13 08:53:42 · answer #1 · answered by Suedoenimm 3 · 0⤊ 0⤋

Get off the internet and do your homework!!!

2006-11-13 08:52:38 · answer #2 · answered by DiRTy D 5 · 1⤊ 0⤋