Slide 1 Slide 2 Chapter 11: The Archean Eon of Precambrian Time 4.6 to 2.5 BYA Slide 3 Origins: Universe Observations red shift: expansion looking back in time –stars…
Slide 1 ESC 102 Historical Geology Fall 2010 Slide 2 Spheres of the Earth When we view the Earth from space what Earth systems are observable? What is most obvious? Are these…
Slide 1 ESC 102 Evolution of Earth and Life Historical Geology Spring 2011 Slide 2 Earth Systems can you identify them? When we view the Earth from space what Earth systems…
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PowerPoint Presentation ESC 102 Evolution of Earth and Life Historical Geology Spring 2011 This is ESC 102 Evolution of Earth and Life 1 Earth Systems can you identify them?…