(5 pts) Figure 7-E4 shows five waypoints (A, B, C, D, and E) on a topographic map. Your contour lines will generally fall between the GPS points on your map, so you will need to estimate many of the contour line positions. The zone from 2900-5100 represents the Earth's ? What is the approximate map relief? Question 14. If the topographic map in Figure 3.6 has a fractional scale of 1:12,000 then 1 inch is equal to 12,000 inches or 1000ft; this 1inch = 1000ft equivalency is for the horizontal scale. Figure 2 is the cross section along line AB. Observe your best fit line. What is the area of the slab? How to Calculate Contour Interval from Maps? In a large map, index contour lines are less to keep it simple to read the map easily. The outside of the fiberglass is maintained at 35C35^{\circ} \mathrm{C}35C, and the total heat flow through the copper-fiberglass combination is 52kW52 \mathrm{~kW}52kW. What is the benchmark elevation at Sloans Crossing? All Rights Reserved. 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. Description. Index contours are prominent or dense lines that bob up at every 5th isometric line. 60 seconds. First, subtract the lower number from the higher number and then divide the result by the number of contour lines. Sensor stability as characterized through mean absolute differences (MARD) on every study day including only sensors inserted on study day 1. The vertical distance or difference in elevation between contour lines is known as a contour interval. Legal. 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. To use the same interval for both x and y , specify xyinterval as a two-element vector of the form [min max]. Country far apart represent gentle slopes. Q. Indicators themselves are weak acids or weak bases. Zoom out and examine the area, what other type of boundary is nearby? on a map that are produced from connecting points of equal elevation (elevation (b) Why do you think reassociation to 1005 and 130 S particles did not work? 17. The older unconformity is a Nonconformity, while the younger is a Disconformity. Please hand in this lab to your TAs at the end of the lab period. How big is the base (area) of the washington monument in sq feet? A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. In every map, on the right-hand bottom side, the contour interval is described. They also show some features made by people such as brodges. To avoid having your profile distorted so that it accurately conveys what the surface of the Earth really looks like in profile, you will want both the vertical and horizontal scales to match. The lines point toward the center of the depression. for Interpreting Topographic Maps Contour lines never cross. It is thought to have formed by the runoff of either precipitation or groundwater. Map Example How far is that distance (0.56 miles) in Kms? The small contour interval, the survey work and plotting have to be more accurate. 5.5 Contour Lines and Intervals | NWCG When the contour interval is not specified in the map, it can be calculated as explained in the following sections. 2. in Figure 9.4, what is the elevation of the intersection of U.S. Route 1 and Maine Route 6 in Topsfield? Use the appropriate conversion factor to convert the horizontal map distance to horizontal ground distance. The zone from 5100-6400 represents the Earth's ? 3. Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 - Jan 2020) by Joyce McBeth; Karla Panchuk; Tim Prokopiuk; Lyndsay Hauber; and Sean Lacey is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted. contour (Z) creates a contour plot containing the isolines of matrix Z, where Z contains height values on the x - y plane. 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What type of drainage pattern would this area represent? This content is subject to copyright. 14. (1 pt) If someone decided to climb Mount Price, what would be the easiest and safest route to take? A contour interval is a vertical distance or difference in elevation between contour lines. What would happen to the mantle rock at point X if water is added to it? Taking the area to be mapped, contour intervals are considered. You want to have the y-axis of the graph paper represent the elevations of the contour lines that intersect your drawn line (line A-B in this case). Inspect the P wave velocities. Using a contour interval of 40 m, label the elevation of every contour line on the map below. The intersection between the landscape and the horizontal paper marks the location of the contour lines on a two-dimensional map. Vertical Location B is higher. The Grand Canyon is an extraordinarily steep area. long-term time-average of sea level). Uses of Contour Intervals in Surveying - Civil Scoops What is the elevation of the unlabeled index contour crossing Roaring Creek in the northwest corner of the map? A contour line is a line drawn on a topographic map to indicate ground elevation or depression. lowest line (which is 6760 feet, and not marked) has an elevation equal or greater A mountaineer is planning an expedition. (1 pt) Examining your map, you will see there is a black line that outlines a rectangle that takes up most of the map area. The result is expressed in feet per mile (ft./mi.). C. Submergence and deposition of sedimentary layers 10-13. What type of plate tectonic boundary is at this exact location? What is the latitude on the northern edge of this rectangle? Measure the horizontal map distance between points A and B to get the vertical ground distance. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. 3. What is the tolerance for compression test results of concrete, according to the standards? The contour music definition is the same definition in any medium such as visual art,. Examine the path of the river that feeds into and flows out of Quail Lake. How are the tops of hills, mountains or depressions (dips) shown on a topographic map? Step 4. What is the relationship between the relief of an area and the contour interval on a map of he area? In every map, on the right-hand bottom side, the contour interval is specified. Select the correct answer(s) from the questions below: The horizontal distance between points A and B can be measured with a scaled ruler and used to determine the slope percent. CHAPTER 3 - ELEMENTS OF TOPOGRAPHY - Food And Agriculture Organization PDF Cross Section and Slope - NASA 500/10=50 What is the elevation of the base of the monument in meters? on a topographic map base. each contour to the horizontal line of the same elevation. Each contour line shows a different elevation. A rounded contour indicates a flatter or wider drainage or spur. What is the contour interval on a map based on? Example 1- In the graphic below, what is the vertical distance between the contour lines? All points on a contour line are at the same elevation. Figure out math tasks Determine Contour Interval and Contour Line Values. Salmon River This map is a geologic map of glacial geology in the area, drawn They also show elevation. The number of lines obtained in the above step is taken and added with 1. Among other things, a topographic map can be used to measure the average slope Lost your password? To calculate the vertical exaggeration in the topographic profile shown in Figure 3.6 we divide the horizontal scale by the vertical scale: (\(\frac{\frac{1000\;ft}{1\;inch})}{(\frac{100\;ft}{inch}}) = 10\). Lets assume, 7000 and 7100 and calculate the interval between it. The contour interval (height difference from one contour line to the next) on the 500 mb height map shown above is 3 decameters (abbreviated as 3 dam) or 30 meters (abbreviated as 30 m). Contour lines For small scale maps covering a wide area of varying terrain, For rough topographical map meant for initial assessment only, If a detailed map is to be prepared for execution work, If the ground has large variation in levels, for instance, hills and ponds, No measurement or scaling is required since the contour levels are indicated on the contour lines, The distance must be measured on the map and converted to actual distance by multiplying with the scale of the map, In a given map the contour interval is a constant, The horizontal equivalent varies with slope. The equation used is: Tips on the paper the exact place where each contour, stream and hill top crosses 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. trend up valleys and form a "V" or a "U" where they cross Lines: Contour lines are used to determine elevations and are lines What are Contour Lines? | How to Read a Topographical Map 101 Notice the general shape of this feature. 18. Melodic contour is the shape and sequence of movements of a melodic line. Therefore, if you print it out in black and white please refer back to the electronic copy to avoid confusion. slope of the area you are interested in by subtracting the lowest elevation Example 2- Draw a profile showing the elevations of the contours. Contour Lines: Contour lines are used to determine elevations and are lines on a map that are produced from connecting points of equal elevation (elevation refers to height in feet, or meters, above sea level). (2 pts) What is the ratio scale used on this map? British Columbia Topographic Map 092G095. Clear up mathematic tasks. Why does the boundary depart from the river channel? Solved What is the contour interval for the topographic map - Chegg If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. through a particular interval. Assume that water flowed through these valleys at some time. (b) Notice how a mountain saddle, a ridge, a stream, a steep area, and a flat area are shown with contour lines. Sorry, you do not have permission to ask a question, You must log in to ask a question. Which of the following places represent a Wadati-Benioff zone? Vertical This plate boundary isn't as simple as the previous examples, meaning another nearby plate boundary directly influences it. Q. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? Where do the S wave velocities abruptly change? -- - . 9.4) to estimate the elevation of this point as accurately as possible. USask GEOL 121 Rock & Mineral Quiz Information, 8. The lowest contour line is at 200m. They are marked with short, straight lines inside the circle. The selection of the contour interval is decided by the survey leader before the start of the mapping process depending upon the ground factors. Creating Because the stream flows south, contour a, which lies downstream of contour b, must be the lower of the two. 200 feet. Contours make it possible to show the height and shape of mountains, the depths of the ocean bottom, and the steepness of slopes. Geology Ecore Midterm Flashcards | Quizlet How is the top of a mountain shown on a topographic map? unit_3_lab_ch.odt - Question 1 (4 points) The river in this figure is located below the scale. In Figure 1.9, which of the following geologic structures is. On a topographic map, a contour line is a line that depicts ground elevation or depression. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. b. Is Lake Creek flowing into or out of Phelps Lake? The given point, 537', therefore, must lie between the 520' and 540' contours (contours aand b). What happens when the lithosphere at point X is heated to 1500 C? Determine the elevation at Point A and Point B in the Figure 9 map below. A topographic profile along the A - A' line is shown correctly in: What is the longitude for the northwest corner of the map? For Ex: If the number of lines between 2 index lines are 5. Source: Karla Panchuk (2020) CC BY-SA 4.0, adapted from Joyce M. McBeth (2018) CC BY-SA 4.0 (view source) and Brad Deline (2017) CC BY-SA 3.0 (view source). The intervals +4tt and 4tt, then, respectively showed intervals ascending and descending from the tonal centre. A high relief. Contour lines that are very close together indicate a steep slope. 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? The peak is normally considered to be located at half the interval distance. tilting. Absolutley amazing app and would definitely recommend. One side of a copper block 5cm5 \mathrm{~cm}5cm thick is maintained at 250C250^{\circ} \mathrm{C}250C. (1 pt) How much higher is Mount Price than Garibaldi Lake? Orbiting spacecraft contain internal gyroscopes that are used to control their orientation. Figure 4: Reading Contour Maps . (The benchmarks have an "x" to locate the spot where the elevation was surveyed). Use the slope percent equation and solve. 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. Now draw contour lines on your map to represent the pyramid in three-dimensions on your map. Therefore: Rise = change in elevation = top (Point A elevation) minus bottom (Point B . Approximately how far did the pole move per day? The direction of plate movement in the last 1.1 million years. 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. The desired unit is feet. If the map has 40-foot contour intervals, then Point A is located at 3,000 feet, and Point B is located at 2,840 feet. . Performance Assessment of Three Continuous Glucose Monitoring Systems elevation of each index contour line. which of the following is the best way to obtain an absolute date for the sequence of rocks, the geologist determines there is 78.3% of the parent remaining in the sample that they examine. On which date did a flood event have a recurrence interval of 0.5? Contour plots with Excel and Matplotlib Select the XYZ data arranged as a single range (Range I4:N8 in the data screenshot below). 68 and south of the Edmonson County Line. Practice questions on Topographic Maps, 5. Are streams in this area downcutting or laterally eroding? 3. The horizontal distance between two points on two consecutive contour lines for a given slope is known as horizontal equivalent. The column and row indices of Z are the x and y coordinates in the plane, respectively. What is the physical state of a dry mantle rock at point X? Would this be an easy location to maintain a railroad? Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. Locate Little Sinking Creek in the southern portion of the map, north of Hwy. What are the different types of handrails used in bridges? pressing down on the middle mouse wheel and moving the mouse forward and What approximate discharge would be associated with a 50 year recurrence interval? Controls the size of characters in the contour labels; default is 0.08". Locate the state boundary between Nebraska and Iowa along the Missouri River. The numbers are the elevation at the top of the peak. What is the contour interval? Consideration in making the choice of the proper contour interval . Topographic Map Quiz | Earth Sciences Quiz - Quizizz 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. It will take approx. Use the index contour just above the "m" in Temple Canyon for your initial spot. How does the direction of motion of the Pacific Plate during the last 1.1 million years differ from direction of movement between 4.7 and 7.2 million years ago? All melodies have contours. Usually there are different contour intervals for the different maps. The contour line is a line which defines the outline of an object. Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. To solve a math problem, you need to figure out what information you have. The following are general Geology Labs 1-6 (some questions and answers, Applications and Investigations In Earth Science, Dennis G. Tasa, Edward J. Tarbuck, Frederick K. Lutgens, Chapter 42: The Physician's Office Laboratory. 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. What is the latitude for this monument? Is the church likely to be at risk of contamination from this same leak? Contour line art is a method of drawing where you draw only the outline of an object, without any shading. The headings indicate the direction the Pacific Plate is moving over the hot spot. Write your answer in feet. What is the change in elevation across each contour interval (i.e., between successive "regular" contours) on this map? USGS topographic maps also show many other kinds of geographic features including roads, railroads, rivers, streams, lakes, boundaries, place or feature names, mountains, and much more. For consistency, assume that elevations between contour lines are 1/2 a contour interval higher than elevation of the lower line. a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells, In Figure 1.8, which of the following rock layers is. All contour lines are spaced at a 20 m contour interval. 10,500-10000=500 feet Between these two contour lines if we count, there are 10 counter lines. If the numbers associated with the contour lines are decreasing, there is a decrease in elevation. Topographic maps STAAR Review | Topography Quiz - Quizizz 1 What is the contour interval on this map? - Istudy-helper.com Location A is higher. e. Is the elevation of waypoint A > or < waypoint B? Exercises on Topographic Maps - Introductory Physical Geology Geology Labs 1-6 (some questions and answers missing) If you were standing at the washington monument what direction would you need to walk to get to the U.S. capitol building? Put simply, contour lines mark points of equal elevation on a map. how old is the sequence of rocks. What would cause two separate samples of pure water to have slightly different pH\mathrm{pH}pH values? This is a graded activity, please submit it to your TA at the end of the lab. What does each contour line on a map show? CONTOUR/SPACING= Sets spacing for contour labels; default spacing is 5". Which of the three proposed plate tectonic mechanisms would NOT occur at this location? What does a contour interval mean | Math Theorems What factors control the course of this river? Information The Wadati-Benioff zone is associated with which type of plate boundary? Start climbing from the foot of a hill toward the top, this is called a rising slope (see Fig. There are fossils such as Glossopteris and Lystrosaurus that are found in rocks in South America and Africa that indicate they were part of Pangaea approximately 200 million years ago. within the sequence is a distinctive clay layer that under closer inspection is fine grained volcanic ash. How far have the snake fossils moved apart since they were originally deposited? The figure above illustrates various topographic features. Slope Worksheet- Use the information from the example above and complete the slope worksheet. 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? Contour It is south of Mammoth Cave. the "V" points to the area of higher elevation or upstream. the profile line. What type of drainage pattern is present in this area? Once your points are plotted on the graph paper, you simply connect the dots. Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). Contour: Definition and Methods | Contour |Surveying In which stage of the cycle of stream erosion is this area? the boundary follows the course of the river at the time it was drawn, the river has since moved. It is determined as follows: Let's take an example of two contour lines which are labelled. of a hill (or hills). How far did the pole move in meters in one year during this time period? Considering the map, the following steps are used to calculate the contour intervals calculation as follows . Sharp contour points indicate pointed ridges. Using the speed you calculated in the previous question (and ignoring possible changes in sea level), when will the Big Island of Hawaii sink below the surface of the ocean? Contour lines How are depressions marked on a topographic map? FM3-25.26 Chptr 10 ELEVATION AND RELIEF - GlobalSecurity.org Step 3. Observe the S wave velocities. which isotopic system should they use. Contour lines that are far apart show what type of slope? The overview section 7.4.2 provides useful background to help you answer questions 4 & 5. What is Contour Interval? Location A is higher. For example, the first hill on the left has a top contour line of 50ft. Australia and Antarctica separated after the break-up of Pangaea. C. On this map, what is the change in elevation between two adjacent index contour lines? If you go from the river at (36 05 35.38 N 113 14 43.70 W) Straight up north the canyon rim Look closely at the topography south of highway, and it changes abruptly. 8. BIOMEDICINE: Digestive System | Description o. What is the term for the geologic feature called Carter Lake? Join now! When you join you get additional benefits. The terms below a landform it is necessary to construct a topographic profile or cross-section Find Sloans Crossing. Digitized contour lines, elevation points and water-courses A. The contour interval is stated on every topographic map and is usually If so, what are the corresponding highest and lowest elevations? (Answer to the nearest foot.) 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? fault. Answers: 1 Show answers Another question on Biology. On most topographic maps, Refer to Problem 14.1 for guidance. 13. The difference between Contour intervals and Horizontal Equivalent are tabulated below: Contour Lines and Its Types, Characteristics and Uses in Surveying. Do Pole movements seem to be steady every 100 years or variable? Answered: Please draw he contour line of the | bartleby a) Label the elevation of every contour line on the map. Mark Figure 7-E9 with a line to indicate the distance you used in your calculation. Are the rocks likely tilted and folded or horizontal? As you look at the map, notice that the contour Once your contour lines are drawn, you will notice that you had to draw some lines closer together in some areas and wider apart in other areasand that you may have even enclosed an area by drawing a contour line in a circular pattern. Dont forget to add a contour line to the map legend! WORKED-OUT CONTOUR MAP PROBLEM - City University Of New York Math can be challenging, but with a little practice, it can be easy to clear up math tasks. By using a ruler, you can transfer these elevation points from your topographic map straight down onto your graph paper such as shown in Figure 3.6. If you were to walk the path of a contour line in real life, you would remain at the same elevation the whole hike, never traveling up or down. fairmount. Contour Interval on Topographic Map. 1 ft = 24,000 ft, and 24,000 ft x (\(\frac{1\;km}{3280\;ft}\)) = 7.32 km. The highest point on a topographic map is marked as 345m. What features would you expect to occur at this type of boundary? c. Label each mark 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. MATLAB automatically selects the contour lines to display.