science and 7 primary plate

Big bang theory

• Compares earth to a grape that shriveled into raisin, forming mountain as it contracted

Isostasy theory, Clarence Edward Duttono

• earth crust levels depend on density, lighter, material rise

Plate tectonic theory, Abraham Ortelius

• Earth outer layer is divided into large and small solid plates

Pacific plate

Part of 7 primary plates

• largest tectonic plate, mostly oceanic

• Around ring of fire

• Move northwest

• Earthquakes and volcanoes

North American plate

• Part of 7 primary plates

• covers North America parts of Atlantic Ocean

• Oceanic crust

South American plate

• Atlantic Ocean

• Forms Andre’s mountain

• Collision with nazca plate

• Part of 7 primary plates

Eurasian Plate

• Europe most of Asia

• Collides with Indian plate

• Forming Himalayas

• Part of 7 primary plates

African plate

• surrounding oceanic crust

• Slowly splitting along East African rift

• Part of 7 primary plates

Antarctic plate

• adjacent ocean crust

• Contain active volcanic beneath ocean

• Part of 7 primary plates

Australian plate

• Divided in Indian and Australian plate, uplift of the Himalayas

• Part of 7 primary plates

Pacific ring of fire

Volcanic eruption

Occurrence of earthquake

Japan, California, Philippines

Forms of mountain

Himalayas, Andes, Rockies