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Geography, 08.10.2019 03:30 miriamnelson7545

The mohorovicic discontinuity is based on the discovery that seismograph stations located about 150 km from an earthquake received earthquake waves sooner than those nearer the focus. mohorovicic reasoned that below a depth of 30 km, there must be a zone having physical properties that permit earthquake waves to travel faster. the mohorovicic discontinuity is the boundary separating these two layers of the earth:

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