what is the contour interval for the figure below? what is the contour interval for the figure below?

Locate the state boundary between Nebraska and Iowa along the Missouri River. Q. View the full answer. as sinkholes, underlying soluble rock was dissolved and area collapsed. What feature(s) can you observe south of Hwy. In most maps, every fifth contour line is an index contour. The difference in elevation between the highest and lowest points in the area on the map. Contour Interval on Topographic Map. If the counter interval is 10 feet, which hill (a,b,c) when viewed from the base is 40 feet tall? Approximately how far did the pole move per day? Lines: Contour lines are used to determine elevations and are lines Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. The result is expressed in feet per mile (ft./mi.). Notice the general shape of this feature. It is usually every fifth line that indicates a change in elevation. 31W. Where does it wind up? This content is subject to copyright. A topographic profile is a cross-sectional view What type of drainage pattern is present in this area? Widely separated contour lines indicate a gentle slope. above or below it, multiplying by the contour interval, and adding or subtracting which of the above geologic events is the seventh in the sequence? Mountain/Hill Depressions The selection of the contour interval is decided by the survey leader before the start of the mapping process depending upon the ground factors. A higher contour interval is used for a large area and small contour interval for small area. Describe how you decided on an estimated elevation for points A and E. c. Is the elevation of waypoint A > (greater than) or < (less than) waypoint E? 17. Use the index contour just above the "m" in Temple Canyon for your initial spot. (1 pt) Garibaldi Creek is located east of Deadmans Lake (Figure 7-E8). (2 pts) What is the relief on this map? e. Place the paper The contour lines in this figure are equally spaced. Where do the P waves abruptly change? Determine the direction of the slope (aspect) from the index contour line to your location by drawing an arrow from the index contour line to the next higher elevation contour line. 31. A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. Would you expect the gradient of the Missouri River in Nebraska to be greater or less than the gradient that you calculated for the Grape River in Colorado? Then, find the difference in elevation between the two points. Betwe View the full answer Transcribed image text: What is the contour interval for the figure below? A contour interval is a vertical distance or the difference in the elevation between the two contour lines in a topographical map. Location B is higher. When the contour interval is not specified in the map, it can be calculated as explained in the following sections. It is usually shown in or near the map's legend. How fast was the Pacific plate moving during the last 1.1 million years between the formation of the Big Island and Maui in cm/year? Which one travels faster? Earthwork estimations for any type of structure like bridges, dams or roads can be found out with the help of contour intervals in a map. Show your work below. Search for the "Washington Monument" and zoom into 3000 feet eye altitude. Refer to the figure below and assume contour interval of 10 feet. Step 1. the boundary follows the course of the river at the time it was drawn, the river has since moved. 13. Adjacent means next to. A slope is easy to recognize in a hilly area. 1 What is the contour interval on this map? What is the term for the geologic feature called Carter Lake? For all of the following figures, assume north is at the top of the map, and south at the bottom. 750m. Closer distance indicates steep slope and wider distance gentle slope. Generally, there are totally distinct contour intervals for various maps. Contour lines Select the Location A is higher. Which of the three proposed plate tectonic mechanisms would NOT occur at this location? What happens when the lithosphere at point X is heated to 1500 C? the result from the nearest marked contour line. For example, if a location point is between the 150 feet and 200 feet contour lines than the elevation is 175 feet (1/2 of 50 feet is 25 feet; 25 feet added to 150=175 feet). in the southern portion of the map, the area is underlain by limestone. Give the elevation of the highest and lowest contour lines as well as the difference between them. Refer to the figure below. please add a brief explanation thank you What is the straight line distance between the 8996 b and the 7202 b benchmarks located north and northwest of Phelps Lake? 31? An incredible app, hundreds of features for every kind of math, and the best part is that it shows u what to do on each step and it explains each step, and, very little ads. Contour values are in feet. As you can see contour lines with 10 m interval. do not cross each other, divide or split. What is the name of the family that contains beryllium? When we hold a ruler to the y-axis of the topographic profile in Figure 3.6, we see that 0.5 inches = 50ft, which means 1 inch = 100ft on the vertical scale. Contour lines do not cross each other, divide or split. What is the contour interval on a map based on? He wants to follow the easiest possible path, which means he needs to find the most gentle slope up the mountain. . b. For example, the first hill on the left has a top contour line of 50ft. On large-scale maps with a lot of topographical detail, the contour interval is usually smaller, while on small-scale maps with less detail, the contour interval is larger. Contour lines that are far apart show what type of slope? What is the gradient? If the numbers associated with the contour lines are decreasing, there is a decrease in elevation. on a topographic map base. Likewise the "40" contour connects depths of 40 ft below sea level and so on. In the context of evolution through natural selection, explain why multicellular organisms have specialized exchange systems and surfaces. 40 feet. At what depth will the dry mantle rock at point X begin to melt if it is uplifted closer to Earth's surface and its temperature remains the same? Note: This lab is in colour. a landform it is necessary to construct a topographic profile or cross-section On most topographic maps, The rock that most closely resembles the composition of continental crust based on the description in the previous section is: Based on the choice you made for question 15, what is the density of the rocks that make up continental crust? What are the different types of handrails used in bridges? Join now! Sharp contour points indicate pointed ridges. The height of an object above the surface of the sea. Slope Worksheet- Use the information from the example above and complete the slope worksheet. Topographic The rock that most closely resembles the composition of oceanic crust based on the description in the previous section is: Based on the choice you made for question 17, what is the density of the rocks that make up oceanic crust? Low gradient and abundant sediment supply. S waves cant travel through liquids and this depth is where the liquid outer core exists. What is the contour interval of the Figure 9 map (shown at the bottom of the page)? which of the above geologic events is seventh in the sequence. Example 4- What is the slope percent in Exercise 2 above? Start climbing from the foot of a hill toward the top, this is called a rising slope (see Fig. Math can be challenging, but with a little practice, it can be easy to clear up math tasks. separating in cm/year? contour lines, the steeper the slope. submergence and deposition of sedimentary layers 10-13. based on the assemblage of organisms (A-I) in this sample, what is the age of this rock. What is the latitude for this monument? A contour map consists of contour lines of a given geographical region. This means every point on a contour line has the same altitude as that of the assumed intersecting surface. Sometimes vertical exaggeration is desiredbut, in some cases, you may not want it. each contour to the horizontal line of the same elevation. For example, if your map scale is 1 inch = 50 ft, then one inch on your graphs y-axis should only represent 50ft of elevation. (10 pts) Imagine you are a geologist working for the Geological Survey of Canada. Contour lines never cross. A darker, heavier contour line that is labeled with an elevation. Which is the code used for the design of the RCC Bridge? Mathematically, a contour line is a curve in two dimensions on which the value of a function f (x, y) is a constant. Assume that water flowed through these valleys at some time. What type of drainage does this appear to be? which of the above geologic events is fifth in the sequence. Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. Complete this map by adding in contour lines using a contour interval of 100 m. Draw the contour lines so that they are continuous: they will either continue to the edge of the map or form an enclosed circle. far apart represent gentle slopes. Mark Figure 7-E9 with a line to indicate the distance you used in your calculation. The run is 1000 feet and the rise in elevation is 120 feet. Zoom out and examine the area, what other type of boundary is nearby? Locate Little Sinking Creek in the southern portion of the map, north of Hwy. (a) Suggest what the 100S100 \mathrm{~S}100S and 130S130 \mathrm{~S}130S particles might represent, in light of current knowledge of protein synthesis. Answers: 1 Show answers Another question on Biology. The river in this area has a rather particular pattern, what geologic process caused this? Vertical C. Write your answer in feet. The shaded areas indicate the 95% confidence intervals. If you trace the length of a line with your finger, each point you touch is the same height above sea level. The figure above illustrates a depression and its representation using contour lines. Overview section 7.3 provides background information on contour lines to prepare you for these exercises. A contour interval is the vertical distance or difference in elevation between contour lines. with the elevation of the contour it represents. a stream or river and dividing the distance (in miles) into the vertical difference For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. A slope is the rise or fall of the land surface. If so, what are the corresponding highest and lowest elevations? Controls the size of characters in the contour labels; default is 0.08". Terms and conditions apply. At 75 km depth, rocks will be heated to about _______ degrees Celsius. Examine the path of the river that feeds into and flows out of Quail Lake. Where do the S wave velocities abruptly change? The contour interval is 20 meters ( Figure 10-2 ), thus each one of the intermediate contour lines crossed to get to point (a) adds 20 meters to the 500-meter index contour line. Here two contour line, side by side are 790 m and 780 m. Between them there is no contour line. d. Is the elevation of waypoint D > or < waypoint C? The difference between two adjacent contours is called the contour interval, which is 10 ft for the Figure 2-2 example. How far have the snake fossils moved apart since they were originally deposited? What type of stream drainage pattern is present on this map? The direction of plate movement in the last 1.1 million years. What features would you expect to occur at this type of boundary? Vertical All melodies have contours. British Columbia Topographic Map 092G095. 11. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. It is impossible to determine which location is higher. It will take approx. You can figure out the elevation of Usually there are different contour intervals for the different maps. What is the relief of the area in the map? What is the profile view to Topographic Map #1? A thumbnail version of the map is shown in Figure 7-E10, a larger copy is provided at the back of this lab manual, and your TA will provide you with a full-scale version of the map in lab. 8,194,375 years to sink. Biology, 22.06.2019 02:10. As contour intervals are for the calculation of vertical elevation of an area, same way to calculate the horizontal distance it is termed as Horizontal Equivalent. General Why is this so? (5 pts) Construct a topographic profile for the map inFigure 7-E6 from position A to A on the graph paper provided in Figure 7-E6 below. They are usually mapped with large contour intervals. The steepest path on a topographic Surface is always perpendicmar to topographic contour at the point where the flowline crosses the contour. Please draw he contour line of the given figure below using 1-meter interval and its index contour and Base on the contour lines that you draw in item no.24, what kind of topographic landform is represented? In this case, to find out the intermediate points elevation, contour intervals are used. Write your estimates for the elevation at each waypoint next to the waypoint. (1 pt) Explain in a sentence how a ratio scale works. below cuts the mountain at equal intervals of elevation. LAB EXERCISE 9.4 Rules for Reading Contour Li, LAB EXERCISE 9.3 Understanding Stream Behavio, LAB EXERCISE 11.2 The Logic of Locating Earth, EXERCISE 9.4: Determining Elevations From Top, LAB EXERCISE 2.10 - Estimating the Amount and, LAB EXERCISE 2.13 - Why Are There More Earthq, LAB EXERCISE 6.9 - Gaining Insight into Depos, EXERCISE 2.1 - Recognizing Plates and Plate B, Chapter 2: Understanding and treating mental, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Determining They then cross the stream and turn back along the opposite bank of the stream forming a "v". To calculate this divide the distance (in centimeters) between the two islands by the difference in their ages. Make sure to zoom out to get a good view of the relevant features. C. Submergence and deposition of sedimentary layers 10-13. slope percent = rise/run 100. for Interpreting Topographic Maps The horizontal distance between two points on two consecutive contour lines for a given slope is known as horizontal equivalent. Index contours are bold or thicker lines that appear at every fifth contour line. Note: The intervals are increasing, therefore, the contours indicate a hill. 1) The contour interval between contour is 40m. 9. On which date did a flood event have a recurrence interval of 0.5? We further visualize the globally normalized responses of each convolution filter on the image of grating interval 6 in Figure 5 B. If the river on this map is 1.93 miles long, what is the gradient for this river? A contour interval is the vertical distance or difference in elevation between contour lines. What does each contour line on a map show? Based on the assemblage of organisms (A-I) in this sample, what is the age of this rock? Indicators themselves are weak acids or weak bases. on a map that are produced from connecting points of equal elevation (elevation he areas enclosed by contour lines at 5 m interval for a reservoir upto the face of the proposed dam are as shown below value of Contour lines 100,510l0,1015,1020,1025,1030,1035 Area (m2) 653/2 ,653, 653*2, 653*8, 653*18 ,653*25 , 653*40 Taking 1005m and 1035 m as the bottom most level and the highest water level achievable of the reservoir. Please give your answer in grams/milliliter. Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? Now difference between 7100 and 7000 is 7100 7000 = 100. They are marked with short, straight lines inside the circle. For a relief map the contour interval is frequently persistent. Contour lines Lines or isolines on a map that connect points with the same elevation. Figure 2 is based on a more complicated landscape that I contoured using a dark pen at a 10 m contour interval and using a lighter pen at a 5 m contour interval. -- - . What is the relief between the surface of East Musquash Lake and the intersection between U.S. Route 1 and Maine Route 6 in Topsfield? In the early days of ribosome research, before the exact role of ribosomes was clear, a researcher made the following observation. The terms below According to your best fit line, what is the recurrence interval of such a discharge? It is determined as follows: Let's take an example of two contour lines which are labelled. How far did the pole move? See example under CONTOUR/SPACING below. refers to height in feet, or meters, above sea level). contour (X,Y,Z) specifies the x and y coordinates for the values . Measure the gradient to the index contour past the word Creek (the last contour before it reaches Arkansas River). located below the scale. Example 1- In the graphic below, what is the vertical distance between the contour lines? Of the following dated flood events, which one would you expect to happen more often? Now count the number of non-index lines contour lines between the 2 index contour lines selected for the contour interval calculating in the 1st step. indicate what information is contained on a topographic map, and where it can "Contour" actually means "outline" in French, which is where the name comes from. V shaped. Take that distance and divide it by the speed you calculated in question 3 to estimate when the next supercontinent will form. When she treated such a mixture with EDTA, everything dissociated to 30S30 \mathrm{~S}30S and 50s50 \mathrm{~s}50s particles. up or down from the nearest index contour line and multiplying by the contour available from: Open Geosciences. Control of the body is accomplished by which of the following body systems? A. Refer to Problem 14.1 for guidance. Essentially a topographic profile is a side image of a topographic map, but the image is only a representation of the area shown on the line on the topographic map (line A-B on Figure 3.6). These marked or labeled lines are known or termed as Index Contour Lines. What does a contour interval mean - A contour interval is a vertical distance or the difference in the elevation between the two contour lines in a. . The. Explain why. Thus, ais 520'; bis 540'. Step 4. Step 3. Now draw contour lines on your map to represent the pyramid in three-dimensions on your map. Based on the map below, which location has a greater elevation, A or B? map. How fast was the Pacific plate moving from 7.2 million years ago to 4.7 million years ago between the formation of Kauai and Nihoa in cm/year? You will receive a link and will create a new password via email. What Is Contour Interval? a. If the relief is high (bigger change) you will need a bigger contour interval. They also show some features made by people such as brodges. According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? What is the longitude for the Washington Monument, locate the base of the monument. They also show elevation. Answer the following questions about these waypoints, based on your best guess estimate of the elevation of each waypoint. What is the contour interval? This is a graded activity, please submit it to your TA at the end of the lab. What would happen to the mantle rock at point X if water is added to it? Observe your best fit line. These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). What type of bedrock is present in this area? Note where this would plot on your graph. of paper along a line across the area where the profile is to be constructed. It is a plane section of the three-dimensional graph of the function f parallel to the-plane. A map has index contours at 250m, 500m, and. Sensor stability as characterized through mean absolute differences (MARD) on every study day including only sensors inserted on study day 1. Do Pole movements seem to be steady every 100 years or variable? Upon adding divalent ions, she could regain 70S70 S70S particles, but never 1005 or 1305 particles. (1 pt) If someone decided to climb Mount Price, what would be the easiest and safest route to take? Once your points are plotted on the graph paper, you simply connect the dots. Contour lines The Grand Canyon is an extraordinarily steep area. Contours make it possible to show the height and shape of mountains, the depths of the ocean bottom, and the steepness of slopes. on the paper the exact place where each contour, stream and hill top crosses It is important for the farmer or irrigator to identify the slopes on the land. Suppose that (x,y,z)=i+k\nabla \varphi(x, y, z)=\mathbf{i}+\mathbf{k}(x,y,z)=i+k. Contour The elevation at sea level is zero meters. fault. How are the tops of hills, mountains or depressions (dips) shown on a topographic map? Contour plots with Excel and Matplotlib Select the XYZ data arranged as a single range (Range I4:N8 in the data screenshot below). Transcribed image text: (5 pts) 7. Dont forget to add a contour line to the map legend! Note: elevation is metres above sea level; thus, sea level = ______ m. 2. The column and row indices of Z are the x and y coordinates in the plane, respectively. All Rights Reserved. A high relief. What important discovery did the researcher miss? Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. Set up the cancellation table so all units will cancel, except the desired unit, feet. Considering the map, the following steps are used to calculate the contour intervals calculation as follows . What is the latitude on the northern edge of this rectangle? Hint- make sure to re-read the section on plate boundaries before answering! First, subtract the lower number from the higher number and then divide the result by the number of contour lines. When a large area is to be mapped in small piece of paper contour intervals are used. What type of plate tectonic boundary is present? The commonly used contour interval is 20 feet for a 1:24,000 map scale. maps also have a vertical scale to allow the determination of a point in three which isotopic system should they use. Which gas station is the most likely source of the gasoline leak? Using the contour lines, determine the upstream direction of the creek. Description. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? Both A and B (20-2900 Km and 2900-5100 Km). A red "X" in Figure 9.5 marks a spot on a contour line along the shore of Baskahegan Lake, but the printed DEM doesn't say anything about its elevation. think about the drainage pattern you selected in the previous answer - what does this tell you about the underlying rocks? Joyce McBeth; Karla Panchuk; Tim Prokopiuk; Lyndsay Hauber; and Sean Lacey, 1.3 GEOLOGY & RESOURCE MAPS FOR CANADIAN PROVINCES & TERRITORIES, 1-E1 LAB EXERCISES CANADIAN GEOLOGY & MINERAL AND ENERGY RESOURCES, 1-E2 LAB EXERCISES REGIONAL GEOLOGY & MINERAL AND ENERGY RESOURCES, 2-E1 LAB EXERCISES MINERAL IDENTIFICATION, 3.5 IGNEOUS ROCK FORMATIONINTRUSIVE VS. EXTRUSIVE, 3.6 LAB EXERCISES IGNEOUS ROCK IDENTIFICATION, 4-E1 LAB EXERCISES SEDIMENTARY ROCK IDENTIFICATION, 5.4 LAB EXERCISES METAMORPHIC ROCK IDENTIFICATION, 6.7 LAB EXERCISE CHOOSING ABSOLUTE DATING METHODS, Answers to Practice Lab Exercises in section 7-E1, 8.6 GEOLOGIC STRUCTURES CREATED BY PLASTIC & BRITTLE DEFORMATION, 8-E5 EXERCISES COMPLEX GEOLOGICAL MAPS & CROSS-SECTIONS, 9-E1 LAB EXERCISE LOCATING AN EPICENTER, 9-E3 LAB EXERCISE HISTORICAL EARTHQUAKE, 10.3 STREAM GRADIENT AND THE CYCLE OF STREAM EROSION, Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 Jan 2020), https://pub.data.gov.bc.ca/datasets/177864/pdf/092G/092G095.pdf, Next: Extra Practice Question on Topographic Maps, Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 - Jan 2020), Creative Commons Attribution-ShareAlike 4.0 International License.