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Lecture1 - What are Earth Systems 7.2 magnitude 22:36:28...

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1 What are Earth Systems? 7.2 magnitude, January 03, 2010 22:36:28 UTC, Solomon Islands 7.1 magnitude, January 02, 2011 05:20:18 UTC, Araucania, Chile What are Earth Systems?
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2 9.0 magnitude, March 11, 2011 05:46:24 UTC, Honshu, Japan What are Earth Systems? What are Earth Systems? Yellowstone Ottawa
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3 Yellowstone Yellowstone
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4 Ottawa On June 23, 2010 at 1:41:42 EST a 5.0 magnitude earthquake 32 km north of Buckingham, Quebec What are Earth Systems? Yellowstone Ottawa New Madrid zone
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5 Trauma cited in mysterious Ark. bird kill USAToday (Jan 2011) ~2000 birds fall from sky (unrelated?) ~80,000 to 100,000 freshwater fish wash onshore Earth Systems? Geology is the science that pursues an understanding of planet Earth Modern approach is to examine Earth as a SYSTEM : The science of Geology Atmosphere Hydrosphere Biosphere Cryosphere Lithosphere
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6 Geology is the science that pursues an understanding of planet Earth Physical geology - examines the materials composing Earth & seeks to understand the many processes that operate beneath & upon its surface Historical geology - seeks an understanding of the origin of Earth & its development through time The science of Geology Physical Geology what is it made of? what is steel? what is concrete? how is it put together? what are the mechanics behind its functionality? will it last? why does it degrade? is it unique? how is it different?
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7 Physical Geology Mineralogy • Composition & structure of steel & concrete Rock Cycle • Making of steel or concrete Geodynamics (e.g. mountain building) • Bridge construction Earth Surface Processes • Gradual or rapid destruction of bridge Earth Systems • Interaction between bridge, people, autos, weather… 1st half 2nd half Geology is the science that pursues an understanding of planet Earth science: the intellect & practical activity encompassing the systematic study of the structure & behaviour of the physical & natural world through observation & experiment The science of Geology
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