Geologic time review PDF

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Review over geologic time in class lecture....

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Geologic time What is catastrophism? Uniformitarianism? Who pioneered the latter? What is the difference between relative age and numerical age? Know the following laws/principles Law of Original Horizontality Law of Superposition Principle of Cross-cutting Relationships Principles of Inclusions Principle of Contact Effects Know the three types of unconformities- angular, non and dis? What do unconformities represent? Be able to unravel a geologic diagram Why do some sedimentary layers end? How can you correlate across stratigraphic localities? What characteristics of a fossil would allow it to be used for correlation? Why was Lord Kelvin’s estimate for the age of the Earth incorrect? What did Madame Curie discover? What is a half-life? Be able to calculate half-lives based on a starting number of atoms or percent What are the best rocks to use for dating? How old is the Earth? Fossils What are the various fields of paleontology? What are three preferred conditions for fossilization? Define the 4 types of fossils. What different ways can fossils be preserved and what get preserved – hard or soft parts or both?...