ERS120H5 Study Guide - Midterm Guide: Continental Crust, Oceanic Crust, Structure Of The Earth
22 Feb 2016
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Coverage: lectures 2 to 12 and practicals 1 to 3. Lecture 2: formation and structure of the earth. Describe the formation of the solar system, including the sun and orbiting planets. Explain the process which shaped the earth into an internally layered sphere. Describe the basic composition and thickness of the major layers of the earth: crust, mantle, inner core, outer core. List and explain five methods used to understand the structure and composition of earth"s interior. Know the age of the earth and how it is determined from rocks, minerals and meteorites. Define p and s waves and explain why s waves don"t travel through liquid. Explain why seismic lines take a curved rather than a straight path through the earth. Draw the path of p and s waves through the earth, including the location of shadow zones. Explain the origin of earth"s magnetic field and why magnetic reversals occur.
