EARTH121 Lecture Notes - Lecture 1: Crystallization, Oak Ridges Moraine, Eastern Canada

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Metamorphic and igneous rock in the canadian shield. Ridge north of toronto pile (ridge) of sediment left from the ice ages contains a lot of ground water. Thick sediment lies in the north south corridor, near lake eerie. Various bedrock types in southern ontario: ribbons of colour indicated that there is different types of bedrock. Near the university of waterloo, there is salina dolostone, shale, evaporates, clastic material (clay and silts) Younger rock is towards the west, older rock is towards the east. Dipping towards the michigan sedimentary basin 4km thick filled with sedimentary rock. In the middle of the basin is the youngest strata on top. Time is important in earth science for aging, rates of geological processes, risk/hazard assess and correlation. The oldest rock would be found in continental crust, not oceanic because it is recycled too much.

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