LandformStudy

LandformStudy - outer core - liquid shell beneath mantle...

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Subject: Physical Geography Session: Chapter 13 - Intro to Landform Study Geologic Time Pretened the age of Earth (4.6 billion years) is compressed to one year • Jan 1 - Earth/planets formed • Early March - liquid water pools • Late March - earliest life • July - oxygen important in atmosphere • October 25 - multicellular organisms • Late November - plants and animals abundant • December 15-25 - dinosaurs arise and disappear • 11:20 PM, Dec 31 - humans appear • 1 second before midnight - automobile invented Earth Interior crust - outermost layer, 1% of earth's volume
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Unformatted text preview: outer core - liquid shell beneath mantle that encloses Earth's inner core inner core - evidently solid, dense, innermost portion Earth's Crust and Mantle lithosphere - uppermost zone of mantle asthenosphere - upper mantle underlying lithosphere, very hot, weak, easily deformed mesosphere - deep mantle Composition of Earth about 100 natural chemical elements found in Earth's crust, mantle, core compounds minerals - building blocks of rocks solids naturally found in nature...
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LandformStudy - outer core - liquid shell beneath mantle...

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