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StudyBlue Flashcard Printing of GEOLOGY Chapter 4 - Plate Tectonics Page 1 of 4 crust outermost layer of earth mantle layer between core and crust, core interior of earth tectonic plate piece of lithosphere that move around on top of asthenosphere continental drift Alfred Wegener's hypothesis thatcontinents once formed a single landmass, broke up, and drifted to their present locations http://www.studyblue.com/servlet/printFlashcardDeck?deckId=1450252 10/19/2012 StudyBlue Flashcard Printing of GEOLOGY Chapter 4 - Plate Tectonics Page 2 of 4 sea-floor spreading process by which new oceanic lithosphere forms as magma rises to the surface and solidifies mid-ocean ridge underwater mountain chain where sea floor spreading is occuring plate tectonics theory that the Earth's lithosphere is divided into tectonic platesthat move on top of the asthenosphere convergent boundary where two tectonic plates collide divergent boundary where two tectonic plates serparate http://www.studyblue.com/servlet/printFlashcardDeck?deckId=1450252 10/19/2012 StudyBlue Flashcard Printing of GEOLOGY Chapter 4 - Plate Tectonics Page 3 of 4 transform boundary Where two tectonic plates slide past one another Continental Continental Convergent Forms a mountain chain Continental - Oceanic Convergent Subduction to form a trench Oceanic Oceanic Convergent Subduction results in trench formation Oceanic Oceanic Divergent Mid Ocean Ridge http://www.studyblue.com/servlet/printFlashcardDeck?deckId=1450252 10/19/2012 StudyBlue Flashcard Printing of GEOLOGY Chapter 4 - Plate Tectonics Page 4 of 4 http://www.studyblue.com/servlet/printFlashcardDeck?deckId=1450252 10/19/2012