Crust Composition Explained
The continental crust is significantly thicker than the oceanic crust, ranging from 25 to 70 km compared to just 7 to 10 km. Its composition, rich in felsic rocks, contributes to its lower density, allowing it to sit higher on the mantle. In contrast, the denser mafic rocks of the oceanic crust sink lower, creating the ocean basins we see today. Understanding these differences sheds light on the geological structure of our planet.In this clip
From this podcast
The Science of Everything Podcast
Episode 111: Plate Tectonics
Related Questions
Which TWO things do the rocks provide evidence of in terms of the geologic understanding of Earth as discussed in the episode Plate Tectonics Are What Makes Earth Inhabitable and the clip Volcanoes and Earthquakes?
Which TWO things do the rocks provide evidence of in terms of the geologic understanding of Earth?