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Plate Tectonics Guided Notes 1. Layers of the Earth and their composition Inner Core Outer Core Mantle Crust 2. Two Types of Crust: _______________________ Crust Properties: _______________________ Crust Properties: 3. The Earth’s crust is divided into 12 major plates which are moved in various directions. This plate ___________ causes them to ___________, ___________, or ___________ against each other. Each type of interaction causes a characteristic set of Earth structures or “tectonic” features. __________ refers to the __________ of the crust as a consequence of __________________. 4. The lithosphere is made up of the ___________ and the ______________________. 5. Plates are moved by underlying _________________________________ cells. 6. Three types of plate boundaries: Boundary: a) b) c) Drawing: What happens? What forms? 7. Three types of convergent boundaries: a) ___________________________________________________________ collisions Form _______________________. b) ___________________________________________________________ collisions Called ______________________. c) ___________________________________________________________ collisions Form a ______________________. Deep depressions formed in the ocean floor are called ______________________. 8. Volcanoes & The Ring of fire Volcanism is mostly focused at _____________ _______________. Volcanoes can be formed in 3 ways: 1) ____________________ 2) ____________________ 3) ____________________ Hotspot volcanoes form when ____________________________________________________ ________________________________ of a tectonic plate. An example is the ____________________________________ Because the mantle plume is stationary and the tectonic plate moves over the hot spot, the volcanoes ______ _________________ from one end to the other. 9. Earthquakes Like volcanoes, EQs occur near the _____________________________. Movement along each of the 3 types of plate boundaries can form an EQ. a) _____________________________ – The majority of EQs originate at a depth within a ________________________________________ and are caused by plates moving against one another. b) _____________________________________ – Occur in __________________________ and can be several hundred kilometers deep. c) EQs can also occur in __________________________ and are caused by both __________________________ and by the _______________________________ within a volcano. 10. Summary The Earth is made up of 3 main layers (_________ , _____________ , ___________) On the surface of the Earth are __________________ ________________ that move very slowly around the world ______________________ ________________ are made up of crust and upper mantle There are 2 types of plates (______________________ , ________________) There are 3 types of plate boundaries (_________________-__________________ , __________________-________________ , ________________-_______________) ___________________ & ______________________ are closely linked to the margins of the tectonic plates.