d become collapsed caves. Stalagmites will also form in undisturbed caves by the dissolving of Calcium Carbonate from the cave walls. The conditions for karsts have at one time been present in the Warsaw Caves area. These conditions include limestone, acidic ground water, a falling freshwater table, and high water flow. One of the unique geomorphologic features is the area where the river disappears underground. It disappears because weaker rock under the surface has been removed allowing the river to follow the path of least resistance. Weathered grooves in the rock and the extremely smooth rock of the kettles are evidence of moving water eroding the sedimentary rock. Shale and dolomite were two other types of sedimentary rock identified. Part IV: Comparisons of Sites and Previous LiteratureThe Otonabee River drainage area encompasses all of the sites visited during the field course (Adams and Taylor, 1992, p.4). The study area is on the border of two major physiographic regions called the Laurentian Highlands to the north, and the St. Laurence Lowlands to the south (Easton, 1992, p.1030). Three physiographic sub-regions within Peterborough County were identified as the Oak Ridges Moraine to the south, the Peterborough Drumlin Field in the middle, and the Dummer Recessional Moraine to the north (Otonabee Region Conservation Authority, 1983, p 2-i). According to the Otonabee Region Conservation Authority (1983, p. 2-i): “Each region was produced by a different stage of the Wisconsin Glaciation that ended about 7000 years ago. Morainic ridges, till plains, drumlins, eskers, kames, and spillways are among the predominant glacial landforms. Bedrock from both the Precambrian and Paleozoic eras are located within the watershed. Glacial drift covering the bedrock is generally thin to nonexistent in the north and gradually becomes deeper in the south, reaching depths of over 30 meters.”It is important to note tha...
