class07a - AST 309S The Solar System MWF 11-12 John Lacy...

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AST 309S The Solar System MWF 11-12 John Lacy RLM 16.332, M-F 12-12:30 471-1469 [email protected] Amanda Bayless Daniel Kagan RLM 16.312, Th 10-12 RLM 16.322A, W 3-5 471-3462 232-3923 [email protected] [email protected] class website: www.as.utexas.edu courses AST 309S username: AST password: 309
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Reading for this week You should have started reading chapter 3: Volcanism. We will wait until Friday for the quiz to give you time to read it. The quiz on Friday will have one question on chapter 3 and one question on chapter 2.
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A question Uranium is a very dense metal (denser than lead), but the book says it is concentrated in the Earth’s crust and mantle, not in the core. How did this happen?
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It is because of the chemical properties of uranium and what it mixes with. Uranium oxidizes easily (like iron forming rust). Uranium oxide isn’t quite so dense, and it mixes with other lower density minerals. In contrast, nickel and some other metals like to mix with
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This note was uploaded on 07/13/2010 for the course AST 309 taught by Professor Johnlacy during the Spring '08 term at University of Texas at Austin.

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class07a - AST 309S The Solar System MWF 11-12 John Lacy...

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