What is the difference between an intrusion and extrusion?

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asked Aug 23, 2023 13.9k views

2 Answers

Ergin · Answer 1 · 2023-08-25T03:16:51+0000

Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet

Intensivist · Answer 2 · 2023-08-29T03:05:19+0000

An intrusion is any body of intrusive igneous rock, formed from magma that cools and solidifies within the crust of the planet. In contrast, an extrusion consists of extrusive rock, formed above the surface of the crust.

What is the difference between an intrusion and extrusion?

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