Intro to Geology

Intro to Geology - ← ← ← Feb 3 ← Extrusive volcanic...

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Intro to Geology 23/01/2009 12:34:00 Size:  density=mass divided by volume composition inner planets- high density material, rock, small, metal  outer planets- low density material, low, gaseous  cross section- % by volume  core=16% mantle=83% crust=<1% center core- metal, middle- mantle, outer line- crust
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Unformatted text preview: ← ← ← Feb 3 ← Extrusive- volcanic; rapid cooling ← Intrusive- plutonic; slow cooling ← ← 3 ways to make magma • raise temp • reduce the pressure • add water 23/01/2009 12:34:00 ← 23/01/2009 12:34:00 ←...
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Intro to Geology - ← ← ← Feb 3 ← Extrusive volcanic...

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