Classification of Igneous Rocks: Intrusive vs. Extrusive

The video tutorial explains the classification of igneous rocks, focusing on the differences between extrusive (volcanic) and intrusive (plutonic) rocks. Volcanic rocks are classified based on silica content, while plutonic rocks are named according to their mineral composition. The tutorial also discusses the types of igneous rocks found at the Earth's surface, influenced by geological settings like mid-ocean ridges and subduction zones.

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