492-pp7 - 1 ES 492 (H): Planetary Geology Lecture 7: Mars...

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Unformatted text preview: 1 ES 492 (H): Planetary Geology Lecture 7: Mars UNIVERSITY OF SOUTH ALABAMA Origin of sediment Last time… 1. Venus reading 2. Introduction to Venus 3. Imaging Venus (radar) 4. Geology of Venus Venus Historical Information •Known by the ancients (Sumerians?). •Like Mercury, had 2 names; Eosphorus (sunrise) and Hesperus (sunset) •The Roman name (Venus) was adopted over the Greek name (Aphrodite) •First visit by a spacecraft was in 1962 ( Mariner 2 ; flyby) •20 visits to date; first (radar?) imagery of surface ( Venera 7 , 1970); first landing ( Venera 9 , 1975), first detailed mapping of surface/atmosphere composition ( Pioneer Venus , 1978); best imagery ( Magellan , 1993/94) •Most recent visit (2006-present) by Venus Express ht p:/ www.fas.org/irp/imint/docs/rst/Sect19/Sect19_7.html Venus versus Earth (Atmosphere) H 2 SO 4 Venus Interesting (but plate tectonics-evading) Geology Venus Interesting (but plate tectonics-evading) Geology 2 Venus Interesting (but plate tectonics-evading) Geology ht p:/ www-pdsimage.jpl.nasa.gov/PDS/public/magel an/ Venus Interesting (but plate tectonics-evading) Geology ht p:/ www-pdsimage.jpl.nasa.gov/PDS/public/magel an/ Venus Interesting (but plate tectonics-evading) Geology ht p:/ www-pdsimage.jpl.nasa.gov/PDS/public/magel an/ Venetian Geology • Venetian Tectonics 1) One Plate Model 2) Thin Lithosphere Model 3) Thick Lithosphere Model ht p:/ www.geology.utoronto.ca/Prospective%20Students/PlanetSci/cruden/Venus%20tectonics.jpg Today’s Agenda 1. Introduction to Mars 2. Imaging Mars 3. Hard rock geology of Mars Hard vs. Soft Rocks Today Today Next Week Next Week 3 Mars Historical Information •Known by the ancients (Babylonians, Greeks etc) Mars Historical Information •Known by the ancients. •Named for the Greek God of War because of its red colour. ht p:/ pressmart.net/blog/uploaded_images/moon_mars-724346.jpg Mars Historical Information •Known by the ancients. •Named for the Greek God of War because of its red colour. •Percival Lowell though he saw canals on Mars ht p:/ library.thinkquest.org/19455/early_observations.htm ht p:/ michaelgr.files.wordpress.com/2007/05/mars-canals-003.jpg Mars Historical Information •Known by the ancients. •Named for the Greek God of War because of its red colour. •Percival Lowell though he saw canals on Mars •First visit by a spacecraft was in 1964 ( Mariner 4 ; flyby). 35 total attempts. Mars Historical Information •Known by the ancients. •Named for the Greek God of War because of its red colour. •Percival Lowell though he saw canals on Mars •First visit by a spacecraft was in 1964 ( Mariner 4 ; flyby) •15+ “successful” visits to date; Mariner 6/7 (1969) showed that ice caps were CO 2; Mars Historical Information •Known by the ancients....
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This note was uploaded on 02/05/2012 for the course ES 492 taught by Professor Staff during the Summer '11 term at S. Alabama.

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492-pp7 - 1 ES 492 (H): Planetary Geology Lecture 7: Mars...

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