#### Mantle Convection & Continental Drift --- #### Continental Drift Puzzle Answer <img src="/assets/slides/pangea.png" style="height: 80vh; margin: 0 auto; display: block;"> --- #### What is Convection? Heat transfer in a gas or liquid by the circulation of **currents** from one region to another. <img src="/assets/slides/convection.jpg" style="height: 60vh; margin: 0 auto; display: block;"> --- #### Mantle Convection <img src="/assets/slides/convection-mantle.png" style="height: 85vh; margin: 0 auto; display: block;"> --- #### Continental Drift <style> li { font-size: 2rem; } </style> - Theorized by Alfred Wegener in 1912. <!-- .element: class="fragment" data-fragment-index="1" --> - Obscure until Plate Tectonics Theory popularized in the 60s. <!-- .element: class="fragment" data-fragment-index="2" --> - Mantle Convection moves Tectonic Plates which causes Continental Drift. <!-- .element: class="fragment" data-fragment-index="3" --> - Example: North American Plate is moving 1 inch away from Europe yearly. <!-- .element: class="fragment" data-fragment-index="4" --> <img src="/assets/slides/continental-drift.gif" style="height: 50vh; margin: 0 auto; display: block;"> --- #### 5 Mechanical Layers of the Earth You know the compositional layers of the Earth like crust, mantle, and core, but what about the _mechanical_ layers of the Earth? <iframe style="margin: 0 auto; display: block;" width="560" height="315" src="https://www.youtube.com/embed/6RKoLleyDJ4?si=_F7rIDYi42jVxDn7" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>