MARS earth), -140 o C to 20 o C 95% CO2, 3% N2, 2% Ar 24 hr day, 25 o axial tilt like E liquid core and magnetic field. Much thicker solid tle than Earth. Thin basaltic crust (20 km). Features: Largest in solar system mispheres separated by 1 km high scarp tilted 35o from equator: i. To the North--sparsely cratered lowlands. ii. To the South--very cratered highlands. province--just North of scarp--a giant volcanic bulge 5,000 mi lon i. 3 giant volcanos near crest--195-250 mi across, 15 mi high. ii. Olympus Mons--NW flank 400 mi wide, 16 mi hi. iii. Clouds of ice near peaks of mtns. Fractures radiating out from Tharsis: i. Valles Marineris--to east---3,100 mi long. Water erosion. Flooding onto lowlands-Chryse Planitia. ii. Coprates Chasma--430 mi wide, 4 mi deep landslides. iii. Other canyons--blocks collapsed--chaotic terrain. orms--closer to sun by 20%, 45% hotter--dark spots. -closest satellite--will take plunge in 100 mill. Yrs. ckney--big crater on Phobos. Deimos--smaller satellite. Mariners 4, 6, 7, 9 orbit, Viking 1, 2 landers. finder landed lakebed like Mono Lake, satellite photos. Viking--Amino Acid-like. Antarctic meteorite-bacteria?
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NOTES: MARS 0.53 Diam(earth), -140 o C to 20 o C Atmosphere 95% CO2, 3% N2, 2% Ar 24 hr day, 25 o axial tilt like Earth 1. Small liquid core and magnetic.
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NOTES: MARS0.53 Diam(earth), -140 oC to 20 oC Atmosphere 95% CO2, 3% N2, 2% Ar 24 hr day, 25o axial tilt like Earth1. Small liquid core and magnetic field. Much thicker solid mantle than Earth. Thin basaltic crust (20 km).2. Surface Features: Largest in solar systemA. Two hemispheres separated by 1 km high scarp tilted 35o from equator: i. To the North--sparsely cratered lowlands.
ii. To the South--very cratered highlands.B. Tharsis province--just North of scarp--a giant volcanic bulge 5,000 mi long, 4 mi high.
i. 3 giant volcanos near crest--195-250 mi across, 15 mi high.
ii. Olympus Mons--NW flank 400 mi wide, 16 mi hi. iii. Clouds of ice near peaks of mtns.C. Fractures radiating out from Tharsis: i. Valles Marineris--to east---3,100 mi long. Water
erosion. Flooding onto lowlands-Chryse Planitia. ii. Coprates Chasma--430 mi wide, 4 mi deep landslides.
iii. Other canyons--blocks collapsed--chaotic terrain.3. Dust storms--closer to sun by 20%, 45% hotter--dark spots.4. Phobos--closest satellite--will take plunge in 100 mill. Yrs.
Just like men and women have fantasiesabout each other, we have had fantasies about Venus and Mars.
Mars fantasies gone wild!
Facts about MARS0.53 Diam(earth), -140 oC to 20 oC Atmosphere 95% CO2, 3% N2, 2% Ar
24 hr day, 25o axial tilt like Earth
Small liquid core (if any), almost no magnetic field.
Much thicker solid mantle than Earth. Thin basaltic crust (20 km).
Two hemispheres separated by 1 km high scarp tilted 35o from equator: i. To the North--sparsely cratered lowlands. ii. To the South--very cratered highlands.
Valles Marineris--to east on last slide---3,100 mi long. Water erosion.
Flooding onto lowlands-Chryse Planitia.
Chryse Panitia—formerly flooded lowlands? (to left on last slide)
Coprates Chasma--430 mi wide, 4 mi deep landslides—widest portion of Valley of the Mariners.
Valles Marineris (middle top), Candor Chasma
Tharsis province--just North of scarp--a giant volcanic bulge 5,000 mi long, 4 mi high.
i. 3 giant volcanos near crest--195-250 mi across, 15 mi high.
ii. Olympus Mons--NW flank 400 mi wide, 16 mi high iii. Clouds of ice near peaks of mtns.
Cydonia Province.
face
pyramids?
Viking 1976 vs Surveyor 1998
Face on Mars?
Dust storms--closer to sun by 20% in summer, 45% hotter--dark spots.
Satellites:Phobos--will take plunge onto Mars in 100 mill. Yrs.
Stickney--big crater on Phobos. Deimos--smaller satellite.