lecture 14 - - the orientation within the magnetic rock...

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Hypothesis of Earth’s polarity reversal every couple thousands of years. Young age at margins, older as its further away (sea floor spreading) hematite and magnetite - when they form they lock in the magnetic field = iron-rich
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Unformatted text preview: - the orientation within the magnetic rock from volcanoes are parallel to the pole (tangent of equator) - if the magnetic rock is from the north pole = perpendicular to tangent Sigalkjewlakrj in rocks is an...
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This note was uploaded on 03/20/2010 for the course EOSC 116 taught by Professor Randell during the Winter '09 term at The University of British Columbia.

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