Presentation on theme: "Major Relief Features (Landforms) of Continental Areas"— Presentation transcript:
1 Major Relief Features (Landforms) of Continental Areas
2 The brown area shows the part of the North American continent that has been stable for over 600 million years. This region is made up of a basement older Precambrian metamorphic and igneous rock that is mostly covered by a relatively thin cover of younger sedimentary rock. Geologists call these long-stable continental cores cratons.