Classification of Igneous Rocks: Intrusive vs. Extrusive

Now that we know how igneous rocks form, what are the types of igneous rocks? This depends on precisely where they form, and we can call them either intrusive or extrusive. These can also be called either plutonic or volcanic. What do these terms mean, and how do they relate to the composition of the rock? Let's find out! Script by Jared Matteucci Watch the whole Geology playlist: http://bit.ly/ProfDaveGeo Mathematics Tutorials: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biology Tutorials: http://bit.ly/ProfDaveBio Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany Tutorials: http://bit.ly/ProfDaveBotany Zoology Tutorials: http://bit.ly/ProfDaveZoo EMAIL► [email protected] PATREON►   / professordaveexplains   Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn Book Depository: http://bit.ly/3aOVDlT