Astronomy 1021 Lecture Notes - Lecture 7: Lunar Mare, Sulfur Dioxide, Carbon Cycle

• School: Western University
• Department: Astronomy
• Course: Astronomy 1021
• Professor: Chris Racknor

Document Summary

Astronomy chapter 7: earth and the terrestrial worlds. Most data is about the interior is collected through seismic waves (vibraions that travel both through the interior and along the surface and ater an earthquake) Studies of magneic ields tell us about the interior layers in which these are generated in other planets. Volcanic rocks can tell us about the interior structure. Core: the highest-density material, consising primarily of metals such as nickel and iron, resides in a central core. Mantle: rocky material of moderate density mostly minerals that contain silicon, oxygen, and other elements forms a thick mantle that surrounds the core. Crust: the lowest-density rock, such as granite and basalt (a common form of volcanic rock) forms a thin crust, essenially represening the world"s outer skin. Earth"s metallic core consists of two disinct regions: a solid inner core and a molten (liquid) outer core. The lithosphere: earth"s outer layer, consising of relaively cool and rigid rock, that essenially.