ERTH 2415 Lecture Notes - Lecture 11: Heat Transfer, Buoyancy, Hydrosphere
28 Aug 2018
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Document Summary
Energy sources: disasters occur where and when the earth"s natural of natural. Differentiation: process by which gravity causes denser material to gradually migrate to the center of a planet, density increasing from surface to center, on earth, the centre is the most dense. Strength layers: thin crust in silicon and oxygen, continental crust is thicker and less dense than oceanic crust. Iron-rich metallic core: magnesium and iron rich mantle, gaseous atmosphere, liquid hydrosphere, rigid lithosphere, soft plastic asthenosphere, stiff plastic mesosphere, liquid outer core, solid inner core. Something solid on top of something that can move and it fluid. Buoyancy: earth can be described as a series of layers where less dense material floats on top of denser material, low-density and rigid lithosphere floats on top of denser and plastic asthenosphere. Tectonic: related to the deformation forces acting on the earth"s surface.
