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Chapter Two Summary

by: Alexandra Grese

Chapter Two Summary Earth Science 1100

Alexandra Grese
GPA 3.0
Planet Earth
Cristina Millan

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About this Document

Lecture and powerpoint translated into note form.
Planet Earth
Cristina Millan
Class Notes
Earth Science, outline, notes, chapter two
25 ?




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This 1 page Class Notes was uploaded by Alexandra Grese on Monday February 9, 2015. The Class Notes belongs to Earth Science 1100 at Ohio State University taught by Cristina Millan in Winter2015. Since its upload, it has received 47 views. For similar materials see Planet Earth in Earth Science at Ohio State University.


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Date Created: 02/09/15
Alexandra Grese Chapter Two Summary Five Spheres o Litho earth 0 Bio life 0 Cryo icy o Atmos air 0 Hydro water 0 Together they form the Earth System We know the earth has a layered interior because 0 Lavavolcanos o Gems minerals 0 Underground water 0 Earthquakes etc 0 It s like an egg shell egg white yolk Earthquakes 0 Seismic waves tell us what s inside the earth I Velocity changes with density I Helps determine depth 0 Pressure and temperature also change with depth I Geothermal gradient 0 We learn about the nature of the layers from meteorites and lab experiments 0 Crust upper mantle transition layer lower mantle liquid outer core solid inner core I Crust Upper part of tectonic plate 0 Continental silicic o Oceanic basaltic 8 elements 0 oxygen most abundant Si04 ie Silicate I Mantle Semisolid rock I Core Ironrich sphere Seismic waves allow us to differentiate Outer core earth s magnetic field 0 Lithoasthenosphere I Litho top astheno bottom


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