The cartoon on the top shows the basic topographic components of Earth’s continents and oceans (not to scale). The bottom diagram plots the elevation distribution of Earth’s surface based on the data …

Earth’s interior is broadly divided by composition and depth into crust, mantle, and core (Figure 9.0.2). The crust is primarily (roughly 95%) made up of igneous rock and metamorphic rock with an overall …

In this webquest, you will be visiting web sites that will help you better understand the Earth's interior, continental drift, plate tectonics and how these topics fit together.

Continental Crust: Thick layer of Earth that sits beneath continents. Convection: movement of a fluid from a cool area to a warm area. Converge: area where two or more tectonic plates bump into each …

Earth’s two types of crust have distinctly different compositions that produce their starkly different appearances, while their differing densities result in large elevation differences across its surfaces.

Assimilation of crust is a pervasive phenomenon and affects most, though certainly not all, magmas erupted through continental crust, both in subduction and other tectonic environments.

Rock is the solid material that forms the earth’s crust. Rocks are divided into three groups: sedimentary, igneous, and metamorphic. Some rocks are broken into fragments that are transported and …