EESB18H3 Lecture : Lecture 3
16 Oct 2011
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Citation ( name, date) record at the end under reference . Quiz: based on chap 3 & 4. Wilson cycles when there are supercontinents 250 million in the future, there is going to be a predicted super continent. Pangea began to break up 250 million years ago. Earthquakes use a lot of energy that go through the planet which are called body waves, how long they take to go through the body of the planet we can say something about the internal structure of the planet. Plates are moved around by convection currents underneath. Information is collected about the earth s interior through deep drilling, Russians hold the record for deep drilling for about 12 km. 12 km is the physical limit to drilling. We can find minerals in the earths surface ex. When plates collide it is common for deep material to be thrust up into the earth"s surface.
