Earth Walk: Structure of Earth

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Presentation transcript:

Earth Walk: Structure of Earth Name:_______________________ Location Description Scaled Distance from center of core (steps) Actual Distance from center of core (kilometers) Inner Core Metal (iron and nickel), solid, 3 – 5 million atmospheres of pressure, 8 – 10000 Celsius Density : 12 – 13 grams/cm3 60 steps 0 – 1200 km Outer Core Metal (iron and nickel), liquid, generates the magnetic field, 2 – 1000 Celsius Density : 9.9 – 12 grams/cm3 175 total steps 1200 – 3500 km Mantle Olivine rich rock, 1, 000 Celsius, 1 million atmospheres, near solid to liquid (like silly putty) Density: 3.3 – 6 grams/cm3 315 total steps 3500-6300 km

Asthenosphere (upper mantle) Layer of upper mantle on which the plates move 313-315 6200 – 63002- km Lithosphere and Crust Oceanic crust: basalt, 0 – 20 km thick, density: 3-3.5 grams/cm3 Continental crust: granite, Density: 2. 7 – 3 grams/cm3 Lithosphere makes up plates 20 – 70 km thick 320 total steps 6300-6400 km Deepest Drill Hole Kola Russia 12 km (7 miles) Deepest mine TauTona Mine, South Africa 3.8 kilometers