class13a - AST 309S The Solar System MWF 11-12 John Lacy R...

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AST 309S The Solar System MWF 11-12 John Lacy RLM 16.332, M-F 12-12:30 471-1469 lacy@astro.as.utexas.edu Amanda Bayless Daniel Kagan RLM 16.312, Th 10-12 RLM 16.322A , W 3-5 471-3462 471-6858 baylessa@astro.as.utexas.edu kagan@astro.as.utexas.edu class website: www.as.utexas.edu courses AST 309S username: AST password: 309
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Topics from chapter 4 How can planetary surfaces be modified? impact cratering – especially on Mercury and Moon lava flows – especially on Venus and Earth weathering – especially on Earth and Mars formation of craters dating surfaces from crater counts effects of wind and water resurfacing by extensive lava flows evidence of water on Mars
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Reading for this week Chapter 4: Surface changes Today More on crater formation and dating of surfaces Also how Mars is different from the Earth
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Groups of 4: What is the age of the Mare Imbrium lava flow?
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Group of four Get together in groups of four. (3-5 is OK) Appoint a discussion leader and a scribe. Discuss the question, and figure out an answer.
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class13a - AST 309S The Solar System MWF 11-12 John Lacy R...

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