AST101H1 Lecture Notes - Lecture 16: List Of Geological Features On Venus, Maat Mons, Volcanism
24 Nov 2017
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Similar (no volcanoes or tectonic activities -> no weather) Lots of craters from the heavy bombarded periods. The moon also have marias (large, dark and smooth plains on the surface of the moon, made by floods of lava back when the moon was geologically active: mercury. Long cliffs on the surface, proved that mercury shrank. Also don"t have an atmosphere: venus. (cid:862)twins(cid:863) with earth due to similarities but is the hell version( masses, gravity, distance from the sun) + rotate the opposite directions compare to other terrestrial planets. + the first 14 missions (1961-1965): only 1 succeed. + the magellan (usa, 1989-1994) mapped the surface using radar. + eistla regio, an area on venus with many volcanoes. Venus has craters, fewer than the moon, mercury and mars. 750 million years ago, it (cid:862)repaired(cid:863) its surface. Use to have tectonics activities, but not anymore. Have an atmosphere but not erosion nor wind (due to slow rotation) nor rain nor snow.
