(L06)Rocks_and _The_Earth's_Interior_E10

(L06)Rocks_and _The_Earth's_Interior_E10 - Rocksand the...

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1 Rocks    and the Earth’s Interior GLY 2010 - Summer 2010 Lecture 6
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2 Rock A rock is an aggregate of one or more minerals, e.g. granite, shale, marble; Or a body of undifferentiated mineral or glassy matter, e.g. quartzite, obsidian; Or of solid organic material, e.g. coal A rock may also be a combination of these
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3 Rock Cycle
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4 Crust Outermost layer or shell of the Earth Part of the Earth above the Mohorovičić discontinuity, made up of sial (above) and sima (below) Crust represents less than 0.1% of the Earth's total volume
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5 Sial and Sima Sial is material rich in si licon and al uminum Sima is rich in si licon and ma gnesium
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6 Andrija Mohorovičić Andrija Mohorovičić (1857- 1936), Croatian seismologist, who first identified a seismic boundary in 1909 The boundary is called the Mohorovičić Discontinuity in his honor, because it marks the level in the Earth at which compressional-wave velocities change abruptly
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Mohorovičić Discontinuity
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(L06)Rocks_and _The_Earth's_Interior_E10 - Rocksand the...

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