Plate Tectonics & Global Geophysics
ANSWER TWO of the following six questions:
⦁ What is our current best understanding of the accretion of the earth?
⦁ How do scientists determine the geotherm and the solidus from the surface to the centre of the earth?
⦁ What do we know about the internal structures in the earth’s inner core, and how can seismological methods reveal them?
⦁ What measurable evidence can reveal fluid convection and jets in the outer core?
⦁ Rocks lose their magnetic properties at the “Curie Point Depth”. Why is knowledge of this depth useful in geothermal energy prospecting?
⦁ Are foreshocks useful in earthquake prediction?
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