Lecture 7 - Lecture 7 9/21/10 Lunar Geology a) No wind or...

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Lecture 7 – 9/21/10 Lunar Geology a) No wind or water erosion due to the absence of an atmosphere b) Maria are the dark sports that are smoother where lava used to flow c) There’s near surface ice d) Its geologically inactive now and there’s no global magnetic field Harrison Schmitt a) First real scientist on the moon Apollo program was cut short due to the amount of spending that went into the space program Moon facts a) Has low density b) The rocks had magnetic fields which is evidence for a fossil magnetic field- present earlier on so there probably was a molten core c) No molten or plastic asthenosphere d) Small moonquakes observed due to tidal stress and strain e) Moon cooled quicker due to thick lithosphere (no plates) i) No granitic scum or folded mountain rangers Internal structure of moon a) Lighter material but not lighter than surface material on earth b) Chemical composition is similar to earth’s mantle Cratering on moon a) Lunar far side has considerably more craters due to it shielding the earth
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Lecture 7 - Lecture 7 9/21/10 Lunar Geology a) No wind or...

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