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notes - • EXAMPLES o Water on a stove o Tectonic plates...

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Terms | Important | Questions INTRO, WHOLE EARTH – Seismology the study of earthquakes and wave propagation thru the earth Seismicity the occurrence of earthquakes in space and time Seismologist one who studies seismograms to learn about earthquakes or the earth Plate tectonics are the driving force for earthquakes Structure of the earth – Crust (0-40 km) Mantle (40-2891 km) Liquid iron outer core (2891-5150 km) Solid iron inner core (5150-6370 km) Convection is tending to make everything have a more similar temperature – Heat liquid from below, cool on top o Cooler material is more dense (sinks) o Hotter material is less dense (rises)
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Unformatted text preview: • EXAMPLES o Water on a stove o Tectonic plates on mantle Ways to transport heat – • Conduction, convection, and radiation PLATE TECTONICS – Plate tectonics driving force for earthquakes and volcanoes – Layers of the earth – • CRUST o Rocky (silicate SiO4) + light elements (K,Al) • MANTLE o Rocky (silicate w/ more Fe and Mg) Terms | Important | Questions • CORE o 90% Fe o Molten outer core / solid inner core Tectonic plates – • Outermost ~100 km of the earth ( lithosphere ) • Plate interiors are rigid – most deformation occurs at plate margins •...
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