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Slide 1Geologic Time 1 Slide 2 Which geologic event took place first and when? when? Which rock layer is older, and how is earth Which rock layer is older, and how is earth…

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Slide 1 Slide 2 Radiometric Dating of Rocks 1896-1898 Radioactivity discovered by: Henri Becquerel and Marie and Pierre Curie. Slide 3 Slide 4 Phenomenon of Radioactivity…

Slide 1Fossils and evolution Rates of deposition of sediments Cooling of the Earth from a molten state Radiometric Dating Methods for Estimating the Age of the Earth Slide…

Slide 11 Earths History Slide 2 2 Planet Earth is approximately 4.5 X 10 9 years old –Rocks of the crust provide clues to Earths past By analyzing these clues we can infer…

Slide 1Geologic Time and Earths Biological History Designed to meet South Carolina Department of Education 2005 Science Academic Standards Slide 2 What is the Geologic Time…

Slide 1Chapter 8 Geologic Time Slide 2 Historical Notes Catastrophism Landscape developed by catastrophes James Ussher, mid-1600s, concluded Earth was only a few thousand…

Slide 1© 2011 Pearson Education, Inc. Geologic Time Chapter 8 Slide 2 © 2011 Pearson Education, Inc. Historical notes Catastrophism Landscapes developed by catastrophes…