PPT-Plate Tectonic Theory

One Theories Journey Continental drift One theorys 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 . 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. Evolution of the Earth. Cracks in the Earth’s Crust. The . crust. , when it is solid, acts as a . heat insulator. for the hot interior of the Earth.. The molten material in the mantle, . magma. , below the crust builds up tremendous heat and pressure. . 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. . Finding Euler poles. T. ransform faults. Spreading center rates. Slip vectors from earthquakes along the boundary. Geodetic measurements . . (GPS, VLBI). Euler poles. North America. Pacific. Cocos. Nazca. Tectonic Theory . Jessica Wilsey. A UDL lesson plan. What is plate . tectonic theory?. Plate tectonics . is a . theory. that describes the movements of the Earth’s . lithosphere. . . The lithosphere is made of 8 major plates and many minor plates. . What to do: identify the features in the photos, make notes about landforms, describe and explain case studies . Levelled Objectives. . (What are we learning?). L1. identify tectonic landforms. L2. describe & explain landforms. Traditional Surveying uses . benchmarks . as reference points. Global Positioning uses . fixed GPS receivers . as reference points (Continuously Operating Reference System, CORS). Some images and slides from Michael Dennis, National Geodetic Survey and Lewis . (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.. Earth’s Internal Layers. The . crust. varies in thickness (4-60 km) oxygen, silicon, magnesium and iron. The . mantle. (2885 km) silicon & oxygen. Outer core. (2270 km) iron & nickle – liquid. 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. TECTONIC PROCESSES AND HAZARDS REVISION SUMMARY Aim: To create summary mind maps for each sub section To look at some typical A level style questions Kilauea: Earthquakes follow eruptions from Hawaii volcano (May 5 Richard Palin, University of Oxford, UK;. M. Santosh, China University of Geosciences, Beijing (CUGB). University of Adelaide, Australia. Ortelius World Map . Typvs. Orbis . Terrarvm. , 1570.. Culmination of centuries of research. 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.