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Topic: Inferred Properties of Earth’s Interior Simple Model of Earth’s Interior Crust Mantle Inner Core Outer Core ESRT page 10 Yes, take out your ESRT NOW! Thanks Density of the Crust on the ESRT Increasing Depth Increasing Density What section of crust is shown in the diagram? Crust - Thinner Thicker Felsic & mostly granite Mantle Continental Crust vs. Oceanic Crust Continental: Oceanic: ----- ----- What is the Lithosphere? - - - What is the Moho? MOHOMohorovicic Discontinuity: –- Andriji Mohorovicic. 1909 What is the Asthenosphere? • • - Diverging Plates Converging Plates What is the Mantle? • • Thickest layer of the Earth What is the Outer Core? • • - Outer Core What is the Inner Core? • • • - Inner Core Composition of the Cores • • - Review Question What are the major differences between the continental crust and the oceanic crust? Continental: •- Oceanic: •- ESRT pg 10 More on the Interior Surface of Earth Center of Earth Radius of Earth = 6378 KM Sample Question: What is the depth of the outer and inner core boundary? 5100 km (remember units!!!) 1.5 millions of atm. What is the Pressure at the mantle and outer core boundary? Represents the Pressure at different depths What is the temperatures at the lithosphere and asthenosphere boundary? 1000°C Line represents the temperatures inside the earth ThisIfdotted line shows the melting of material the temperature is below thepoint melting point, in the Earth. does melting point mean? what phaseWhat is it in? -From Solid to a Liquid -Solid Solid Solid Liquid Solid Which layers in the diagram have temperatures below the melting point? Which phases are they in? Liquid phase where temps. are above the melting point. Final Question: • Which type of crust is the most dense?