PPT-✄ Tectonic Plates (without continents)

North American Eurasian African Australian Antarctic Pacific N Amer South American Pacific Juan de Fuca Nazca Philippine Caribbean Indian Arabian Scotia Cocos . Structure of the Earth. The Earth is made up of 3 main layers:. Core. Mantle. Crust. Inner core. Outer core. Mantle. Crust. The Crust. This is where we live!. The Earth’s crust is made of:. Continental Crust. One Theories Journey . Continental drift -- One theory's journey. . Today, you might be laughed out of a geology course for questioning whether continents move through geologic time. But 75 years ago, only skeptics believed that continents could take a hike. Talk about conventional . Standard . S6E5.d . Recognize that lithospheric plates constantly move and cause major geological events on the earth’s surface.. What You Will Learn. Describe the three types of tectonic plate boundaries. . Structural Geology. Lecture . 7. The anatomy of continents. Autumn. , . 2015. The Wilson Cycle. The Wilson Cycle. The Wilson Cycle. The Wilson Cycle. The Wilson Cycle. The Wilson Cycle. The Wilson Cycle. Video on Earth 1 million years from now. Theory of Continental Drift. Alfred Wegener . wrote . about his hypothesis of . continental . drift . in the 1900s. .. Continental drift.  is the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations. . 4 Layers of the earth. 7 main plates of the earth. 3 main plate boundaries. 2 types of crust. 3 main features of plate tectonics (F.E.E.D). 3 main theorists and theories. Human interaction. Structure of the Earth. (Noun). The . pieces of the Earth’s crust that float on the mantle. , causing continental drift and earthquakes and creating volcanoes, trenches, and mountains.. “The Earth’s crust is divided into . Plates. by. Katie . Lanoue. and Jeanine Brown. The Formation of a Theory. In 1915, a German scientist named Alfred Wegner came up with the theory of continental drift.. His hypothesis was that all the continents were once connected to form a supercontinent called Pangaea.. Unit 12.1. These observations lead him to come up with the . ___________________________. A very long time ago (~200 million years) the continents were joined together in a . ___________________. called . Divergent. Convergent. Transform. Three types of plate boundary. Spreading ridges. As plates move apart new material is erupted to fill the gap. Divergent Boundaries. Iceland has a divergent plate boundary running through its middle. Plate tectonic cycle . Plate tectonics -. What is plate tectonics?. Concept that features of the earth and earth phenomena (earthquakes, volcanoes) are caused by motion of plates of rigid lithosphere moving on a plastic asthenosphere. Ghafoor. 5. th. hour. 12-9-16. Oceanic V.S Continental Crust . Oceanic Crust . It is composed of several layers, not including the overlying sediment. . Oceanic crust is about 6 km (4 miles) thick.. “What are tectonic plates?. Classifying the Layers. There are two ways to classify the layers of the Earth:. Compositional. (Chemical): classifies based on chemical properties (. ie. : elements). Physical. Earthquakes. Earthquakes occur throughout the world but predominately on. plate boundaries. . For example the San Andreas Fault, a conservative plate margin. Furthermore, earthquakes also occur on the constructive plate boundaries of the Mid- Atlantic Ridge, although these are not as severe.