EESA06H3 Lecture 10: Lecture 10.docx
12 Apr 2012
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Lecture 10: canada"s geologic journey: the last 4. 5 billion years. Geology of north america known for 100 years but. So here"s the geologic map and we known this for more than 100 years. Geologist had found out across continents, looked at rocks most are driven by fine and economic minerals. This map has been here for a long time but it didn"t make a lot of sense. There was no model and no pyridine which means a big idea. It"s a revolutionary idea that changes people"s views on day of things that had been around for many years. We talk about plate tectonic pyridine, nano-technology pyridine and all these sort of things. We are looking at previous date that previously didn"t make sense. Plate tectonic revolution came along in the 70s and then people started looking at this map and realized how it worked. Canadian shield deals with ancient rocks so there"s a problem with having no fossils.
