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Unformatted text preview: -Density properties of the earth show relationship to the meteorites.-Magnetic properties of the earth are derived from the liquid portion of the metallic core.-Convection cells are generating magnetic field of the earth.-Solid inner iron nickel, and outer core is liquid.-Seismic data (earthquake waves, dynamite impact, etc. Two types:-Body waves= consist of p and s waves (primary and secondary waves, or compression and sheer waves (s)) P waves= fastest velocities, compresses and expands. S waves= intermediate waves. Sheers the waves. Cant sheer liquid or gas. S waves absorbed in liquids and gasses. -Surface waves= no need to focus until later.-Seismic wave velocity increases as density of material through which wave propagates. -Seismic waves move away from epicenter, P waves bent to interior of the earth. -Liquid slows down seismic waves through layers of the earth....
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- Spring '05
- Planet, Crust, Seismic wave