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GL102 (3)
Chapter

Geology 102

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Department
Geology
Course
GL102
Professor
Carrie B Sanders
Semester
Winter

Description
Introduction to Geology and Plate Tectonics 2/11/2013 6:28:00 PM Science of Geology  Physical geology o Examines the materials composing Earth - gain an understanding of the surface  Historical geology o Origin and development of Earth throughout time  Information comes from outcrops o Where bedrock is exposed at the surface o Provides insight into basic processes  Includes o Natural hazards  Volcanoes, floods, earthquakes, landslides, tsunami o Resources  Water and soil  Metallic and nonmetallic materials  Energy  Great demands for resources  Growing pressure for people to dwell in environments o Human influences  River flooding in natural  Magnitude and frequency of flooding can be changed - human activities Catastrophism + Uniformitarianism  Catastrophism o Earth’s landscapes - shaped by catastrophism o Mountains and canyons o Produced  by sudden and often worldwide disasters  Uniformitarianism o The present is the key to the past o Implies the operation of timeless, changeless laws or principles Nebular Hypothesis  Describes a large cloud of dust and gases o Contracting to form out solar system
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