Please see attachment laboratory questions SAL11 glaciers file has the lab assistant figures The scans are for the other questions It's the end of
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# Please see attachment laboratory questions SAL11 glaciers file has the lab assistant figures The

scans are for the other questions

It's the end of the semester these labs are putting me behind any help would be great!

1. Laboratory Questions SAL11 - Lab Manual, Chapter Eleven: Glacial Landscapes Purpose: In this lab you will learn how recognize different types of glacial features from topographic maps and DEM's. Reading Assignment: Read sections 11.1 through 11.5 inclusive Review the Lab Assistant – Glaciers found above in this chapter's folder. Materials Needed: Protractor, Ruler, Calculator Exercises: (Show all math work for partial credit) 1. Read the introduction to Exercise 11.4 and answer the following questions about the DEM of Long Island, New York. (Reference Section 11.2) A) Review Figure 11.7 as modified in the Lab Assistant-Glaciers . Identify labeled features A through E as either outwash plain, ground moraine, recessional moraine, terminal moraine, or glacial delta (2.5pts)
B) Which of the two features, B or C , is younger? Explain your reasoning? (2pts) C) What was the direction of glacial movement? Give your answer as a quadrant bearing. (1.5pt) D) Would you expect the sediments to be more sorted in area A or area E ? Explain. (2pts) 2. Read the introduction to the first part of Exercise 11.5 and look at Figure 11.9 of Passadumkeag, Maine. One of the ways you can tell an esker from a terminal moraine is the orientation of the ridge. (3pts) A) What is different about the orientation of the long axis of the ridge of a esker versus the long axis of the ridge of a terminal moraine? Discuss the orientation relative to the direction of glacial advance. B) What is different about the depositional method of an esker versus a terminal moraine? Discuss sorting. 3. The following questions are based on Figure 11.10 of Weedsport, New York area. Read the second part of Exercise 11.5. A) Look at the hill labeled 4 and also the one to the west of it in on the map. Based on the contour lines, describe the shape, orientation, and asymmetry of the hills. ( Hint: one side of the hill is less steep than the others )(2pts) B) If you dug into this hill, would you expect the grains to be well sorted? Why or why not? (2pts) C) What is the length and width of hill 4 ? Give your answer in kilometers. (1pt) D) What is the height of hill 4 above ground level (not sea level, subtract elevation at the bottom of the hill from the elevation of the top of the hill)? (1pt) E) Based on the asymmetry of the hills and the general orientation of all the hills on the map, what was the direction of glacial advance in this area? Give your answer as a azimuth bearing. (2pts)
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Lab Assistant - Glaciers Use the following presentation to help complete SAL11 Terms and Definitions Drift: General term for all rock material transported by glaciers and deposited directly form the ice or through the agency of meltwater Till : Unstratified drift, deposited directly by a glacier without reworking by meltwater, and consisting of a mixture of clay, silt, sand, gravel, and boulders ranging widely in size and shape Outwash: Sand and gravel deposited by meltwater streams in front of the end moraine or the margin of an active glacier. Kame : A mound, knob, or short irregular ridge, composed of stratified sand and gravel deposited by a subglacial stream at the margin of a melting glacier Drumlin: A low, smoothly rounded, elongate hill of compact glacial till, built under the margin of the ice and shaped by its flow Moraine: A mound or ridge of unstratified glacial drift, chiefly till, deposited by direct action of glacier ice. Definitions adapted from: Dictionary of Geological Terms, The American Geological Institute, R.L. Bates and J.A. Jackson, editors, 1984
Features of Continental Glaciers
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