EPSC 201 Lecture 7: EPSC201 Lecture 7 Notes.doc
11 Mar 2013
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Epsc201 - lecture 7 notes tal drift: nents fit together like puzzle pieces, which suggests the to be connected. Alfred wegner, a meteorologist and from swisszterland, found signs of glaciations in places where there shouldn"t be. He fit the continents together, and called the massive one continent pangaea. He con- cluded that the continents must have slowly drifted to- gether. Key line evi- of dence places where there shouldn"t be glacia- tions have signs of it. Glaciers tend to polish and erode the rock. Glacial striation along the side of mountains can indicate flow of glacier. When plaining wood, one direction is very smooth and the opposite direction is very rough. The exact same phenomenon is observed with glaciations striations. From this you can extrapo- late what direction the glacier was flowing. Glaciers scrape huge grooves in the land, which form lakes. These lakes will be all scraped in the same direction.
