Andes Mountains By: XXXXXXX

This is the button to click to return to this slide. Table of Contents This is the button to click to return to this slide. Location Age Rock Cycle Composition The Future Bibliography Formation

Location Geographic Entire Western Coast of South America The seven countries that the Andes Mountains run through Click the screen to go back Click screen for a diagram of the countries that the Andes' run through. Location Geographic Entire Western Coast of South America Spans through seven countries -Venezuela, Columbia, Ecuador, Peru, Bolivia, Chile, and Argentina 4500 miles long Tectonic Location Runs the entire western coast of South America Click for Tectonic Location

Click the screen to go back South American Plate Nazca Plate Andes Mountains Click the screen to go back Tectonic Location Click for picture •Andes Mountains are on the South American plate. •Nazca and South American plate collided causing the Andes Mountains •Nazca plate is subducting below the South American plate •Nazca crust is scraped off adding height Andes aerial view Back to Location Tectonic Diagram

Formation of Andes Mountains This diagram shows how over a long period of time, the Nazca plate slowly subductes under the South American plate. The farther it subductes, the bigger the Andes mountains grow and they begin to form around 60 million years ago. As the crust melts, it becomes less dense and moves to the surface creating a volcano. Click the screen to go back. Formation of Andes Mountains Nazca plate collided with South American plate -Nazca plate-Oceanic Crust -South American plate-Continental Nazca subducted under South American plate Volcanic mountains formed -Crust melted creating magma that rose to surface creating volcanos Andes Mountains were created Click For Picture

South American and Nazca Plate Diagram Boundary where the plates meet creating the Andes Mountains Back to Tectonic Location

Age 140 MYA-Nazca plate subducted under South American Plate MYA= Millions of Years Ago 140 MYA-Nazca plate subducted under South American Plate Andes Mountains began to from 45 MYA Formed 95 MYA after the subduction process happened Andes Mountains in Chile.

Rock Cycle Destructive Force The quick melting of the crust causes it to become less dense and rise to the surface creating volcanic mountains. Subduction is occurring-Nazca plate subducting under South American plate. The force of the oceanic and continental plates are causing mountains to form. Convection currents cause the plates to move.

Composition Sedimentary Rocks make up the majority of the range. -Sandstone (Clastic) -Siltstone (Clastic) -Shale (Clastic) -Limestone (Chemical) Layers of sandstone create parts of the Andes Mountains. Limestone on a mountain

The Future I think that the Andes Mountains will continue to slowly grow because the Nazca Plate is still slowly subducting under the South American Plate. Also weathering will erode the mountains making them smaller. As long as the Nazca plate is still subducting below the South American Plate, then I think there will be volcanoes forming in the Andes Mountains and erupting.

Bibliography "Geological History of the Andes." Andean Summits. Portable Design, n.d. Web. 26 Oct. 2013. LiveScience. N.p., 14 Mar. 2103. Web. 1 Oct. 2013. <http://www.livescience.com/27897-andes-mountains.html>. Plate Tectonics. N.p., 1 Oct. 2013. Web. 1 Oct. 2013. <http://www.platetectonics.com/oceanfloors/andes.asp>. Science Daily. N.p., 2013. Web. 10 Oct. 2013. <http://www.sciencedaily.com/releases/2009/05/090515191558.htm>.