@Lecture03_4

@Lecture03_4 - 1 PALEOBIOLOGY 1 Fall 2010, GEL 107: Lecture...

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Unformatted text preview: 1 PALEOBIOLOGY 1 Fall 2010, GEL 107: Lecture 03 Biostratigraphy 2 How do we know it? Help me! I cannot imagine such a long time period. 3 Sue the Tyrannosaurus rex at the Field Museum in Chicago is 65 million years old. Where are fossils found? How long is the geologic time scale? Outline 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? 4 What are the important time period names? What fossils are used as index fossils? What are the problems of biostratigraphy? 4 2 5 1 million years 6 20 years (leaf width) 7 Where are fossils found? How long is the geologic time scale? Outline 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? 8 What are the important time period names? What fossils are used as index fossils? What are the problems of biostratigraphy? 8 3 9 10 http://kazza.id.au/usa/ Dinosaur National Monument Rock containing T. rex fossils 11 Three Types of Rocks Rocks of Water (Sedimentary Rocks) Rocks of Fire (Igneous Rocks) Altered Rocks (Metamorphic Rocks) 12 4 13 http://www.uh.edu/~doan2580/catrip.htm 14 http://www.kitchensfitted.co.uk/ChoiceComponents/Granite_worktops.php 15 16 5 17 18 http://www.stonecontact.com/marbleimages_2.asp 19 Where are fossils found? How long is the geologic time scale? Outline 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?...
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@Lecture03_4 - 1 PALEOBIOLOGY 1 Fall 2010, GEL 107: Lecture...

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