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Planetary Interiors
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Minerals
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Isostacy
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Mass Wasting
SlumpSlideCreepFlow
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Tectonics
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Figure 9.21 Box 9.1
Figure 9.23 Figure 9.24
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Plate Tectonics
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Volcanoes
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Landforms
• Shield Volcano (Hawaii)
• Cinder Cone (Lassen National Park)
• Stratovolcano (Mt. Shasta, California
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Hot features
• Fumaroles• Hot springs• Geysers
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Wind
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Dunes
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Alluvial Fan
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Impact Craters
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Terrestrial Impact Craters
• Meteor Crater, AZ• Manicouagan,
Canada• Chicxulub, Yucatan,
Mexico
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Impact Frequency
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Surface Geology of Individual Bodies
• Remote Sensing– Imaging– Photometry– Thermal and reflectance spectra– Radar and radio observations
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Moon• No
atmosphere• Two primary
terrains– Highlands
• Old, highly cratered
– Maria• Younger,
darker
• Volcanism– Maria
• Tectonism– rilles
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Mercury• Primarily covered
with impact craters– Caloris Basin
• No obvious volcanism
• Tectonism– Long, sub-linear
scarps– Likely produced by
planetwide contraction
– Decrease in Mercury’s radius by 1-2 km
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Venus
• Bulk properties similar to Earth
• Features dominated by Volcanism
• Also see– Impact craters– Tectonism– Erosion
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Volcanism
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Craters, Tectonics, & Wind
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Mars
• Crustal Dichotomy– Southern cratered
highlands– Northern lowlands
• All surface processes have visible features
• No obvious active volcanism and tectonism– Dead world?
• Most new research
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Water
• Channels• Teardrop islands• Fluidized ejecta blankets
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Aeolian Features
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Io• Few impact craters• Most volcanically
active body in solar system
• Tectonics, erosion
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Largest Volcano• Olympus Mons
– 27 km high– 550 km across– 102 km diameter caldera
• Loki– 200 km diameter
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Europa
• Icy surface• Processes
– Tectonics– Volcanism/erosion– Cratering
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Cassini at Saturn
• http://saturn.jpl.nasa.gov/home/index.cfm
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More Titan
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