EPS 80 Lecture Notes - Lecture 9: Iridium Anomaly, Wave Power, Surface 2

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Neptune, that contains many comets: oort cloud: extended shell of icy objects that exist in the outermost part of the solar system. Impactor compositions and velocities chart (from lecture: the effects when asteroids/meteoroids/comets hits the earth"s surface are similar even if comets move faster in speed. At the front of the windows when it reaches the earth"s surface(cid:524). Size of ejecta depends on the size of the meteor. Maybe; still subject to questioning: far-flung ejecta may have caused a global boiling, deccan traps eruptions overlaps the kt boundary impact that caused the final extinction. Deccan eruptions near india already caused life to be under stress globally: luckily, large impacts are rare. Earth"s surface: longshore transport: when waves come along at an angle to the beaches, which transfer a lot of sand horizontally across the shoreline, solutions of longshore transport: Artificial groins: creating a barrier to longshore drift constructed of large blocks of material.

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