Earth Shakes, Rattles, and Rolls Mountain Building

Layers of the Earth Crust Mantle Outer core Inner core

Convection currents in the magma move the earth’s crust.

Types of Mountains Folded Fault-block Dome

FOLDED MOUNTAINS http://www.cssd11.k12.co.us/dohnts/images/earth/fldmtn.jpg

FOLDED MOUNTAINS Appalachian Mountains in the eastern United States, and the Swiss Alps in Switzerland form when two plates collide head on, and their edges crumble consist mainly of sedimentary rocks, like limestone and shale

FAULT-BLOCK MOUNTAINS

FAULT-BLOCK MOUNTAINS Consist of huge blocks of the earth's crust that have been tilted or pushed up along a fracture line called a fault Sierra in California, Arizona is an example. Created when a plate hits a fault and tips upside down, creating erosion and debris, which is at the base of the mountain.

DOME MOUNTAINS

DOME MOUNTAINS Dome mountains are formed when the hot magma rises from the mantle and pushes up the overlying sedimentary layer of the Earth's crust. In the process, the magma is not erupted, but it cools down and forms the core of the mountain. They are called dome mountains due to their appearance that resembles a dome shape.