Plate Tectonics And Continental Drift

------------------------------------------------- Plate Tectonics and Continental Drift The Earths crust is scattered up into huge slabs of rock. These slabs of rock argon known as tectonic dentures. There are seven major, and twelve miniature rest homes. ocean plates are 5km-10km thick whereas uprightal plates are bigger at more or less 25-90km in thickness. Basaltic oceanic plates are do from denser rock, than granitic continetal plates. ------------------------------------------------- The Plate Tectonic surmisal * The earths crust is divided into pitchfork parts called tectonic plates. * These plates foul up on the partially melt rocks of the upper mantle. * The plates move ascribable to convection cells in the mantle. * Margins are the areas in the midst of the tectonic plates. Margins of meet plates are called destructive brinks while margins of diverging plates are called constructive margins. Margins where the plates slide a gainst each other are called conservative margins. * Plates mint be oceanic or continental. When an oceanic plate meets a continental plate, its drawn beneath the margin of the continental plate and the rocks of the oceanic plate go into the mantle. When a continental plate meets another continental plate, come togethering may occur and fold mountains created.

------------------------------------------------- The History of Continental Drift * Continents drift due to the elbow grease of the tectonic plates. * Originally, there was one large continent called Pangea surround by a sea called Panthalassa. It is believed Pangea was centered around d! epict day Africa. ==Tectonic Plates== ------------------------------------------------- Earthquakes An earthquake is the result of a fast release of energy in the Earths crust that creates unstable waves. pushing can be released due to a exit of reasons, such as a thrust/strike-slip fault, or when deuce plates elastically filtrate as they slide past one another, mental deductive reasoning up elastic...If you want to get a full essay, hostelry it on our website: OrderCustomPaper.com

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