@Lecture03_9

@Lecture03_9 - 1 1 Fall 2009 GEL 107 Lecture 03...

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Unformatted text preview: 1 1 Fall 2009, GEL 107: Lecture 03 PALEOBIOLOGY 2 Biostratigraphy 3 Sue the Tyrannosaurus rex at the Field Museum in Chicago is 65 million years old. Help me! I cannot imagine such a long time period. How do we know it? 4 Where are fossils found? What are the important time period names? What fossils are used as index fossils? How long is the geologic time scale? What is relative age and how do we use it to tell how old a fossil organism is? How do we put actual numbers (absolute age) on relative age? What are the problems of biostratigraphy? 5 6 1 million years 20 years (leaf width) 7 8 Where are fossils found? What are the important time period names? What fossils are used as index fossils? How long is the geologic time scale? What is relative age and how do we use it to tell how old a fossil organism is? How do we put actual numbers (absolute age) on relative age? What are the problems of biostratigraphy? 9 2 10 http://kazza.id.au/usa/ Dinosaur National Monument 11 Rock containing T. rex fossils 12 Rocks of Water (Sedimentary Rocks) Rocks of Fire (Igneous Rocks) Altered Rocks (Metamorphic Rocks) Three Types of Rocks 13 14 ht p:/ www.kitchensfit ed.co.uk/ChoiceCom ponents/Granite_worktops.php ht p:/ www.uh.edu/~doan2580/catrip.htm 15 16 17 18 ht p:/ www.stonecontact.com /m arbleim ages_2.asp 3 19 20 Where are fossils found? What are the important time period names? What fossils are used as index fossils?...
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@Lecture03_9 - 1 1 Fall 2009 GEL 107 Lecture 03...

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