SmartyPants007 SmartyPants007

18-01-2017
Chemistry

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What sequence of events could lead to magma becoming soil?

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yolomcswag yolomcswag

18-01-2017

1.allow the magma to cool, to get an igneous rock
2. expose the igneous rock to weathering agents
3. add humus and microbes and presto you've got soil

If the magma cools as intrusive rock (eg granite) then the time to become soil would be much greater than if it were extrusive lava (eg basalt), as you would need uplift and erosion before weathering. Hope it helps :]

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