Cheat Sheet 1 - 5c. Why do almost all geologists believe in...

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Dr. Magma's Top Ten Things Ya Just Gotta Know 1a. What is the Big-Bang theory, and what evidence do we have to suggest that it is correct? 1b. What is the Nebular hypothesis, and what evidence do we have to suggest that it is correct? 2. Draw a cross section of the Earth and briefly describe the major units! (I am looking for unit names, densities, thicknesses, compositions, and how the units respond to stress.) 3. Describe the structural classification of minerals and the chemical classification of minerals. (How do these classifications fit with our definition of what is a mineral?) 4. Why are the silicate minerals such an important group? (Why can’t the carbonates and the sulfates do what the silicates can?) 5a. When the theory of continental drift was presented in 1912 what was the evidence? 5b. Why didn’t the majority of geologist believe it?
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Unformatted text preview: 5c. Why do almost all geologists believe in Plate tectonics (very similar to continental drift) today? 6. What happens when a westward moving ocean plate collides with an eastward moving continental plate? 7. If the average mantle is below the melting temperature, how is magma produced at mid-ocean ridges, subduction zones, and hot spots? 8. What happens to a magma as it moves through the crust from when it is produced in the mantle until it erupts at the surface? 9a. What are the most dangerous volcanic products? Why? 9b. What are the most dangerous types of volcanic eruptions? Why? 10a. How do we classify rocks? (Think about the three main groups and the major subdivisions within each group) 10b. Why is rock classification more flexible than mineral classification?...
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This note was uploaded on 04/09/2008 for the course GEOL 111 taught by Professor Naslund during the Spring '08 term at Binghamton University.

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