Earth Sciences 1086F/G Lecture Notes - Lecture 7: Late Heavy Bombardment, Dynamo Theory, Mare Imbrium
19 Dec 2017
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Document Summary
Ever since the stabilization of the moon after the big collision, earth"s gravitational influence on its neighbouring planets has forced the mon into exactly the same rotational period and orbital period as the earth, this is called tidal coupling. Earth has at least one trojan satellite (an object that has the same orbit as another body, but it doesn"t collide with that body because it"s located in a particular point in orbit called a. Legrangian point, where it can remain stable and not collide with the other body. Divided into: light areas (light highlands) Composed of anorthosite rock, also seen on earth. Old regions where we see craters from early in the history of the solar. Solidified basalt lava from earlier periods of lunar volcanism (last 3 bya) Great lava flows with only a few cm of loose dust on their surfaces and cover. Sinuous rilles created by lava flows and are often found near the edges of the maria.
