Introduction to geology

Introduction to geology - A view of Earth from the Moon A...

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A view of Earth from the Moon
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A view of Earth ± Earth is a planet that is small and self- contained ± Earth’s four spheres ± Hydrosphere ± Atmosphere ± Biosphere ± Solid Earth
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Earth as a system ± Earth is a dynamic planet with many interacting parts or spheres ± Parts of the Earth system are linked ± Characterized by processes that ± Vary on spatial scales from fractions of millimeter to thousands of kilometers ± Have time scales that range from milliseconds to billions of years
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Figure 1.13
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Earth as a system ± The Earth system is powered by the Sun that drives external processes in the ± Atmosphere ± Hydrosphere ± At Earth’s surface
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Earth as a system ± The Earth system is also powered from the Earth’s interior ± Heat remaining from the formation and heat that is continuously generated by radioactive decay powers the internal processes that produce volcanoes, earthquakes, and mountains
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The rock cycle: part of the Earth system ± The loop that involves the processes by
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This note was uploaded on 07/17/2008 for the course GS 105 taught by Professor Leavell during the Winter '08 term at Ohio State.

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Introduction to geology - A view of Earth from the Moon A...

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