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Glacial Landforms in the Peterborough Ontario Region

with calcium bicarbonate and a black mineral on the surface of the rock. The black mineral fragmented at right angles but was not identified. The drumlin is difficult to identify because from the entrance to the park (leeward side of the drumlin) the drumlin is not visible by relief and is symmetrical (the peak is at the centre of the drumlin). Upon further inspection the size, shape, and orientation of the drumlin becomes apparent. Detailed information on the composition of the drumlin was not available because digging in the park is prohibited.A brief stop was made between Mark S. Burnham Park and the final site for the day, the Rice Lake drumlin. County road 2 and the 2nd line of Peterborough County (NTS grid reference: 345 084) cut through this particular drumlin. The measurement of slope on three faces of the drumlin was: 4 degrees on the northern face, 4 degrees on the eastern face, and 11 degrees on the western face. Clasts of well-rounded sedimentary rock, varying in size from pebbles to boulders, were visible on the surface. A few 0.5 to 1m granite boulders also rest on the surface. Geology of the area was not obvious because farmland, road, and forest covered the drumlin.The final stop at the Rice Lake drumlin (NTS grid reference: 294 026) yielded some unusual features which have led to this feature being classified as both a drumlin and an esker. The area of study has been disturbed by excavation allowing improved analysis of the feature. The surface clasts are uniformly limestone and granite, ranging from 20cm to 1cm. The northern end of the landform reveals stratification of sediments, contrary to the southern end. This landform could be an esker due to its elongated shape and the stratification at the north end. The relationship between the stratified sediments and the sand and gravel till could be that, first, a drumlin was created, then, water flow around and on the drumlin deposited sediments. Part III: War...

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