More than a thousand eskers have been found in Michigan. The eskers resemble the features of an embankment and are often used for making roads. D 29 Which of the following features is a result of glacial deposition A) erratic B) arête C) cirque D) horn A 30 a. Kettles, kames, and eskers b. Moraines, erratics, and drumlins c. Tarns, hanging valleys, and horns d. Roches moutonnées, arêtes, and fjords. Briefly describe the following glacial features associated with ice sheets: terminal moraine, kettle, drumlin, outwash plain, esker, and kame. 2-3.2 Glacial History In the last approximately one million years, there have been four glacial advances across central and eastern North America. In low-lying, boggy terrain these snaking ridges dominate the terrain, providing vantage points and dry route ways. Drumlins are hills made of glacial sediment and till, while eskers are long ridges of glacial drift. Eskers on paleo-ice-sheet beds are more abundant in areas of crystalline bedrock with thin coverings of surficial sediment than in areas of thick deformable sediment e.g., 9,4.This is because meltwater flowing at the bed is more likely to incise upwards into the ice to form an R-channel where the bed is hard; where the bed is deformable, meltwater is more likely to incise downwards 10. Some of the other features associated with glacier erosion in alpine regions are cirques, horns, and arêtes (Figure 10af-3). Which of the following features are typical of both alpine and continental glaciation ? These units are: ground moraine and drumlins, stratified drift, end moraine and stagnate-ice or dead-ice moraine, and special features such as moulin kames, eskers, and crevasse fills. Drumlin An elongated hill of glacial till formed by the re-advance of a glacier over existing till deposits. Esker. Eiscir) is one of the most striking landforms of fluvioglacial deposition. Broken ridges or un-assorted depositions looking like hump in a till plain. Briefly describe the following glacial features associated with mountain glaciers: cirque, arete, horn, hanging valley, lateral moraine, medial moraine. List four effects of Ice Age glaciers aside from the formation of major erosional and depositional features. 15. Winding ridge of un-assorted depositions of rock, gravel, clay etc. - Large amount of the water trapped by the glaciers from the water cycle. Esker: A long narrow ridge, often sinuous, composed of stratified sediment and marking the former location of a glacial tunnel. Most eskers are on till plains although some are known to cut through moraines and even cross drumlins. For most alpine glaciers, cirques are the areas in the alpine valleys where snow first accumulated and was modified into glacial ice. a. The long axis of a drumlin is aligned with the direction of glacier movement. The esker (Ir. Drumlin It increases. List four depositional features other than moraines. Cirques are the bowl shaped depressions found at the head of glacial valleys. They vary in length from a fraction of a mile to scores of miles, and in height from a few feet up to several hundred and more feet. Kame Terraces. These would have been part of the debris that was carried along and then accumulated under the ancient glacier. Drumlins are elongated hills of glacial deposits. They can be 1 km long and 500 metres wide, often occurring in groups. Ground moraine with drumlins and till-covered bedrock rises (Fig. The Irish word was and is used particularly to describe long sinuous ridges, which are now known to be deposits of fluvio-glacial material. A) striations and erratics B) drumlins and cirques ... drumlins B) striations C) eskers D) kettles . What typically happens to global sea level during an ice age? Changes to the valleys and rivers are contributed by the glaciers, obliterating the former valleys and streams. 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