EAS206 Lecture Notes - Lecture 5: Gravity Recovery And Interior Laboratory, Asthenosphere, Late Heavy Bombardment

• School: University of Alberta
• Department: Earth and Atmospheric Sciences
• Course: EAS206
• Professor: Dr. Chris Herd

Document Summary

What do you know about the moon: no atmosphere, orbit in sync with rotation (always see the same side, collision to form the moon, orbit causes tides, geologically inactive, astronauts. Harrison schmitt is geologist, 1972 last time to set foot on moon. The moon facts: moo(cid:374) pre(cid:448)e(cid:374)ts earth fro(cid:373) (cid:271)o(cid:271)(cid:271)li(cid:374)g o(cid:374) its o(cid:449)(cid:374) a(cid:454)is a(cid:374)d a(cid:272)tuall(cid:455) (cid:272)o(cid:374)tri(cid:271)utes to earth"s stabilization of the environment. Comparison: no atmosphere due to low gravity, no key distributing properties around the surface for temperature (hence the larger range of temperature, due to direct sunlight = no filtering, due to lack of atmosphere. Impact crater is younger: next pic: southern edge of. Imbrium basin: basin needed to be there for the mare basalt to fill, copernicus eject rays go across the rays of eratosthenes (which sits on top of the mare basalt) Basin comes first, then the maria (which is the lava seeping through the surface into the basins), then the impact craters (eratosthenes and copernicus)