Environmental Science 1021F/G Lecture Notes - Thermal Energy, Detritivore, Potential Energy
28 Jan 2013
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19 january, 2011: origin and structure of earth, earth"s geologic dynamics, hydrosphere, atmosphere, climate and weather. Big bang: 12-15 billion years ago, only two elements existed: hydrogen and helium. Star formation: hydrogen and helium aggregate, under gravitational forces, high temperature & pressure, nuclear fusion forms heavier elements. The geological structure and dynamics of planet earth aluminum, silicon) Igneous rock: basalt (dominate oceanic crust, granite (dominate continental crust) Metamorphic rock: formed from igneous or sedimentary rock under heat and pressure during crustal movement: e. g. gneiss (formed from granite), marble (formed from limestone) (end of lecture september 14th, 2011) Crustal dynamics involve tectonic forces associated with granitic continental. Geological structure and dynamics of planet earth (continued) Earth is also impacted by extraterrestrial bodies, including exceedingly rare large meteorites. The importance of glaciation in modifying the landscapes of canada. The most recent glacial epoch began about 100-thousand years ago, and ended.
