Earth Sciences 1086F/G Lecture Notes - Lecture 3: Feldspar, Mantle Plume, Anorthosite
8 Dec 2017
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Unit 3 the terrestrial planets: division of planets into terrestrial and gas/ice giants is purely based on density, and nothing else, terrestrial planets are too close to the sun to be mainly ice, the. Theia and earth compositions must have been mixed. The view from earth: we"ve known for a while that moon is an airless world, we know that such a small body has a low escape velocity all gas atoms near surface escape into space. Craters to learn by: meteoroid: small body moving in solar system that would become meteor if entered. 2017-09-24: many lunar rocks are breccias rocks made up of fragments of earlier rocks cemented together, regolith: powdered rock and crushed fragments that cover the highlands and lowlands of the moon. Surface heat flow: astronauts found that the heat flow on moon was fractionally smaller than that of earth"s.
