geology review 1

geology review 1 - Geology test review Chapter 1 -Certain...

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Geology test review Chapter 1 -Certain areas are dangerous to live but also have benificial soils -The distribution of natural resources is different across the world because there are dif- ferent ages of different rocks in various regions - Layers of the earth: inner core, outer core, lower mantle, upper Mantle - Continental crust is a thin light gray layer about 35-40 kilometers thick while oceanic crust is dark and only 7 kilometers thick - The lithosphere (greek for stone) is the uppermost part of the mantle and is strong and solid while the asthenosphere (greek for not strong) is still solid but softer and can flow under pressure - Isostasy explains that the variance in regional elevation is due to different thicknesses of crust floating on the mantle. - Internal Energy: comes from the earth and includes heat energy trapped when the earth was formed and radioactive energy - external energy is the sun and from meteors that hit the earth a long time ago - Internal forces: gravity is the most important agent on earth it causes loose rocks flow- ing glaciers and running water to move from high elevations to lower one. It also drives ocean currents and wind. -
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This note was uploaded on 04/04/2008 for the course GEO 101 taught by Professor Garnero during the Fall '08 term at ASU.

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geology review 1 - Geology test review Chapter 1 -Certain...

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