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Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter?

Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Contour Lines: Contour lines indicate the shape of the land surface, i.e. its topography. A contour line is the map trace of an imaginary line on the ground that has a particular elevation. One way of visualizing such a line is to imagine a shoreline. Bodies of standing water have level upper surfaces, thus their shorelines are traces on the ground surface of that particular elevation. Topographic maps have many contour lines, each adjacent line differing by a constant elevation difference, the contour interval (Figure 1). CONTOUR INTERVAL 100 80 Example: Note the Rule of V's! Figure 1: Example of contour lines on a 3-dimensional block diagram. 53 -57 Contour lines follow some basic rules. If you understand contour lines, you should be able to explain why each of these rules is true: 1. The closer spaced contour lines are, the steeper the ground surface is. 2. Contour lines never cross 6 80 3. Contour lines never branch 4. Contour lines never change elevation 5. Contour lines never skip (e.g., you can never have the sequence of lines 10, 20, 40 without having 10, 20, 30, 40) 6. Contour lines always have an up side and a down side (all elevations on one side of the line are higher than the line, all elevations on the other side lower). The up and down side never change along the length of the contour line. 7. When contour lines cross rivers, streams, etc....they form V's. 64 67 -76 75 Concentric, nested contours indicate <.05 100 04 .60 58. 08 *74 Pebble Lake 75 78 00 78 68 75 deve 12 1.6 km 56 When contour lines are close together, this means, When contour lines are spread out further, this means What the contour interval of 25ft, 30ft, 35ft lines? B 63 70 68 .60 illl 57 +52 61 70 79 53 40 *57 £= .60 55 .68 75 -53 .60 CONTOUR LING 72 78 Contour interval-10 moters W 56 60 63 Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter? 6 What is the lowest possible elevation that you may encounter based on the same figure above?
Transcribed Image Text:Contour Lines: Contour lines indicate the shape of the land surface, i.e. its topography. A contour line is the map trace of an imaginary line on the ground that has a particular elevation. One way of visualizing such a line is to imagine a shoreline. Bodies of standing water have level upper surfaces, thus their shorelines are traces on the ground surface of that particular elevation. Topographic maps have many contour lines, each adjacent line differing by a constant elevation difference, the contour interval (Figure 1). CONTOUR INTERVAL 100 80 Example: Note the Rule of V's! Figure 1: Example of contour lines on a 3-dimensional block diagram. 53 -57 Contour lines follow some basic rules. If you understand contour lines, you should be able to explain why each of these rules is true: 1. The closer spaced contour lines are, the steeper the ground surface is. 2. Contour lines never cross 6 80 3. Contour lines never branch 4. Contour lines never change elevation 5. Contour lines never skip (e.g., you can never have the sequence of lines 10, 20, 40 without having 10, 20, 30, 40) 6. Contour lines always have an up side and a down side (all elevations on one side of the line are higher than the line, all elevations on the other side lower). The up and down side never change along the length of the contour line. 7. When contour lines cross rivers, streams, etc....they form V's. 64 67 -76 75 Concentric, nested contours indicate <.05 100 04 .60 58. 08 *74 Pebble Lake 75 78 00 78 68 75 deve 12 1.6 km 56 When contour lines are close together, this means, When contour lines are spread out further, this means What the contour interval of 25ft, 30ft, 35ft lines? B 63 70 68 .60 illl 57 +52 61 70 79 53 40 *57 £= .60 55 .68 75 -53 .60 CONTOUR LING 72 78 Contour interval-10 moters W 56 60 63 Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter? 6 What is the lowest possible elevation that you may encounter based on the same figure above?
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Figure 1: Example of contour lines on a 3-dimensional block diagram. Contour lines follow some basic rules. If you understand contour lines, you should be able to explain why each of these rules is true: 1. The closer spaced contour lines are, the steeper the ground surface is. 2. Contour lines never cross 3. Contour lines never branch 4. Contour lines never change elevation 5. Contour lines never skip (e.g., you can never have the sequence of lines 10, 20, 40 without having 10, 20, 30, 40) 6. Contour lines always have an up side and a down side (all elevations on one side of the line are higher than the line, all elevations on the other side lower). The up and down side never change along the length of the contour line. 7. When contour lines cross rivers, streams, etc... they form V's. Example: Note the Rule of V's! 53 .64 67 -65 .60 Concentric, nested contours indicate_ Pebble Lake 100- *74 DB 12 60 <- 68 75 What is the contour interval of 25ft, 30ft, 35ft lines? ya When contour lines are close together, this means When contour lines are spread out further, this means B 1.6km 58 70 -60 -57 .61 68 -70 52 53 57 55 68 75 -53 60 Contour interval-10 meters 50- Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter? 56. What is the lowest possible elevation that you may encounter based on the same figure above? 60- 63
Transcribed Image Text:Figure 1: Example of contour lines on a 3-dimensional block diagram. Contour lines follow some basic rules. If you understand contour lines, you should be able to explain why each of these rules is true: 1. The closer spaced contour lines are, the steeper the ground surface is. 2. Contour lines never cross 3. Contour lines never branch 4. Contour lines never change elevation 5. Contour lines never skip (e.g., you can never have the sequence of lines 10, 20, 40 without having 10, 20, 30, 40) 6. Contour lines always have an up side and a down side (all elevations on one side of the line are higher than the line, all elevations on the other side lower). The up and down side never change along the length of the contour line. 7. When contour lines cross rivers, streams, etc... they form V's. Example: Note the Rule of V's! 53 .64 67 -65 .60 Concentric, nested contours indicate_ Pebble Lake 100- *74 DB 12 60 <- 68 75 What is the contour interval of 25ft, 30ft, 35ft lines? ya When contour lines are close together, this means When contour lines are spread out further, this means B 1.6km 58 70 -60 -57 .61 68 -70 52 53 57 55 68 75 -53 60 Contour interval-10 meters 50- Quick Check: According to Figure 1 above, what is the highest possible elevation that you may encounter? 56. What is the lowest possible elevation that you may encounter based on the same figure above? 60- 63
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