Matching Pairs Geology, Climate, HydrologyOnline version geology, climate, hydrology by Laurie Hamilton 1 2 3 4 5 6 The geologic cycle, which shows magma forming igneous rocks that are transformed into sedimentary rocks that turn into metamorphic rocks that then melt into magma. In the cretaceous period, what is now Alberta was covered by a seaway joining the Arctic Ocean with the Gulf of Mexico. Soil supplies nutrients to plant roots, in turn plant roots can break up the soil clumps. Organic rocks are formed by a build up of organic matter and subjected to heat and pressure over time. The main rivers in Alberta start in the west from the Rocky Mountains and generally flow towards the east. During the ice age Alberta was covered by the Laurentide Ice Sheet and the Cordilleran Ice Sheet.
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