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Glacial Landforms in the Peterborough Ontario Region

enches on the Knob where material has collected over time. There are striations running southeast to northwest on the exposed bedrock (298 degrees). Some of the striations turn into fractures, where rock has broken off possibly due to freezing and thawing. These striations are the result of debris being scraped along the surface of the rock by a glacier. The fractures are likely due to the release of pressure caused by ice and rock being melted and eroded off the bedrock. In some places fractures are intersected by fractures running perpendicular, which may suggest something on the composition of the rock (i.e. The way it fractures under pressure, the process under which the rock was formed or transformed, or the direction of ice movement). The highest points of the Knob are the most barren probably because material is washed down from the peak and into shallow, low-lying areas where it collects and allows plant life to grow. Chipping the rock with a hammer found it to be brittle and produced an unusual and pungent odour. Relatively few highly weathered clasts are situated on the Knob; however, the perimeter has a greater number of clasts that vary from angular to highly weathered. Clast size ranged from approximately 15cm to 1m across the long axis. The road leading up to the Knob from the bus stop is littered with clasts of similar composition but angularity increased. At the sides of the road is exposed rock because the road has been cut into the bedrock. Vertical fractures in the rock are the same as the fractures on the Knob. There are three distinct plateaus of rock on the northern face, approximately 15m from the peak of the Knob. Inspection of the first plateau yielded identical granite bedrock and a similar smell was notes when chipping the rock. Signs of active erosion are visible along the entire slope. Part II: Bridgenorth Esker, Burnham Park, and the Rice Lake Drumlin.Day two consisted of five individual stops...

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