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Lab4GeochronologyIsochron[1]

Lab4GeochronologyIsochron[1] - QUIZ...

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QUIZ!! You have a quiz! Labs 1-4 are fair game! 
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Last Week: Lab 1 – Identify Sedimentary Rocks , Where they  form Lab 2 – Vertical Sequencing, Sea Level Rise/Fall Lab 3 – Dating rock layers Lithology Fossils
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Lab 4 – Geochronology: Constructing an Isochron
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Relative vs. Absolute Age in  Geology Relative  Age Dating Gives only an approximate age Not a number Utilizes Laws of Superposition, Cross-Cutting  Relationships, Concurrent Age Zones Absolute  Age Dating Yields precise ages Radioactive decay  Radioactive decay  gives us this information
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What Happened First? Last?
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Relative Dating How old is the limestone? Igneous intru s ion Igneous intrusion
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Relative Dating Law of Superposition Principle of Cross-Cutting Relationships What is the age of the fossil assemblage? Igneous intru s ion Igneous intrusion
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Igneous intru s ion Igneous intrusion Relative Dating Law of Superposition Principle of Cross-Cutting Relationships What is the age of the fossil assemblage?
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