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022411 Craters, Geoid, & Topography

022411 Craters, Geoid, & Topography - Review...

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1) What are the main similarities and differences in the geologic timescales for Venus, Earth & Mars? 2) What is the definition for plate tectonics? 3) What features should be present on Venus & Mars if plate tectonics is active? 4) What are the key features for identifying tectonic processes on Venus & Mars, and why are they important? Review Questions (02/22/11)
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) Why can craters be used to determine an average age for the surface of Venus but not the relative ages of different portions of the surface of Venus? 2) What is a geoid? 3) What are the planet-scale characteristics of the geoids for Earth, Venus & Mars? 4) What are the planet-scale characteristics of topography for Earth, Venus & Mars? Review Questions (02/24/11)
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Source: http://observe.arc.nasa.gov/nasa/exhibits/craters/impact_earth.shtml.html Craters on the Surface of the Earth
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Martian map showing examples of crater distributions
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Google Mars Data (this slide is not in the slide count)
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Three Craters (largest: D~50 km) Dickinson Crater (D ~70 km) Golubkina Crater (D ~ 30 km)
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