Use the appropriate conversion factor to convert the horizontal map distance to horizontal ground distance. Locate the Louisville and Nashville Railroad line just south of Hwy. Contour lines tend to enclose the smallest areas on ridge tops, which are often narrow or very limited in spatial extent. Examine unconformities 1 and 2 indicated in Figure 1.9. nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems . Transcribed image text: Refer to the hydrologic map in Figure 14.5. which organism was the most useful in coming to this conclusion (best fossil index), which organism was the least useful in coming to this conclusion (worst index), how much of the parent isotope would be remaining after 7 half lives have passed, if a radiometric element has a half life of 425 yrs, how old would a rock be that only had 3.125% of the parent isotope remaining, based on your graph approximately how much of the parent isotope would be remaining after 3.5 half lives, based on your graph above approximately how many half lives have passed when only 35% of the parent isotope is remaining, an archeologist finds some cloth at a burial site and wants to determine the age of the remains. fcontour (f) plots the contour lines of the function z = f (x,y) for constant levels of z over the default interval [-5 5] for x and y. fcontour (f,xyinterval) plots over the specified interval. Examine the path of the river that feeds into and flows out of Quail Lake. Australia and Antarctica separated after the break-up of Pangaea. In which zone do the P wave velocities appear to be steadily increasing? Please use Occams razor as you answer the questions: use the simplest explanation rather than the most complicated explanation to answer the question. 2. S waves cant travel through liquids and this depth is where the liquid outer core exists. Contour plots with Excel and Matplotlib Select the XYZ data arranged as a single range (Range I4:N8 in the data screenshot below). Contour values are in feet. fault. The figure above illustrates various topographic features. Here two contour line, side by side are 790 m and 780 m. Between them there is no contour line. What is the area of the slab? The following are general Figure 3. The figure on the right shows the 500 mb height map for December 9 with the position of a trough and ridge . If you go from the river at (36 05 35.38 N 113 14 43.70 W) Straight up north the canyon rim Refer to the topographic map in Figure 7-E3 for an example of contour lines you can use to help you complete this question. map. What important discovery did the researcher miss? slope percent = (120ft / 1000ft) 100 = 12% What is the name of the family that contains beryllium? Which gas station is the most likely source of the gasoline leak? 1. Each contour line shows a different elevation. 250/5 = 50. Closer distance indicates steep slope and wider distance gentle slope. Explain why. (5 pts) The following topographic map (Map 7-E3) is from a coastal area and features an interesting geological hazard in addition to the ocean. 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. It is impossible to determine which location is higher. The numbered contour lines are the index contours; the unnumbered contour lines are the supplemental contours. 68 and south of the Edmonson County Line. c. Label each mark Q. What is the elevation of the unlabeled index contour crossing Roaring Creek in the northwest corner of the map? Overview section 7.3 provides background information on contour lines to prepare you for these exercises. Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. (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. 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. each contour to the horizontal line of the same elevation. Figure 2 is the cross section along line AB. What type of process is going on at this location? What type of tectonic plates are present? Make sure to zoom out to get a good view of the relevant features. If you were standing at the washington monument what direction would you need to walk to get to the U.S. capitol building? 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. . d. Prepare a vertical Apply the principle of conservation of angular momentum to determine the direction a spacecraft will rotate if an internal gyroscope begins to rotate in the counterclockwise direction. To keep the contour map simple and easy to read, not every contour line is marked with its elevation reading. Considering the size of the area to be mapped, contour intervals are assumed. The zone from 5100-6400 represents the Earth's ? Sharp contour points indicate pointed ridges. slope percent = rise/run 100. Locate the state boundary between Nebraska and Iowa along the Missouri River. The difference in elevation between the highest and lowest points in the area on the map. One side of a copper block 5cm5 \mathrm{~cm}5cm thick is maintained at 250C250^{\circ} \mathrm{C}250C. To take the difference, subtract the higher elevated line with the lower elevated line reading. What type of drainage pattern would this area represent? How and why do we divide stars into groups by mass? Measure the distance using the bar scale between the pole 1400 and 1700 (locations C and F). characteristics of contour lines: 1. What is the dc saturation current? The gradient of a steam or river is determined by measuring a section of At 75 km depth, rocks will be heated to about _______ degrees Celsius. In what general direction is the Pacific Plate moving? The purpose of this lab is to familiarize students with how to read and use topographic maps. Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). a geologist is trying to date a sequence of sedimentary rocks with abundant fossils and sandstones. please add a brief explanation thank you See the example under CONTOUR/SPACING below. The headings indicate the direction the Pacific Plate is moving over the hot spot. What features would you expect to occur at this type of boundary? As you can see contour lines with 10 m interval. It is south of Mammoth Cave. quickly and accurately across any straight line on a map by following this procedure: a. the boundary follows the course of the river at the time it was drawn, the river has since moved. 31. Lines: Contour lines are used to determine elevations and are lines A high relief. Mark Figure 7-E9 with a line to indicate the distance you used in your calculation. The Contour Interval of the above map us 20 Units. 750m. Gradient: Stream gradient can also be determined from a topographic As a contour approaches a stream, canyon, or drainage area, the contour lines turn upstream. Stream channels radiate outwards like wheel spokes from a high point. For small contour interval, the money required will also more as the field and office work will be more. In Figure 9.7, what is the elevation of the lowest point in the crater? Figure 6.13 | Coastal area topographic map. As an example, . 2. They are usually mapped with small contour intervals. Dont forget to add a contour line to the map legend! Step 2. Put simply, contour lines mark points of equal elevation on a map. The more closely spaced the Then add 1 to 5 that becomes 6. the final step is the quotient of the difference between 2 index lines (step 2) and the number of lines in between two index lines plus 1 (step 5). In Figure 9.4, what is the elevation of the highest point on Farrow Mountain? What is the contour interval of the Figure 9 map (shown at the bottom of the page)? 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. Contour on a map that are produced from connecting points of equal elevation (elevation (1 pt) How much higher is Mount Price than Garibaldi Lake? Axons from which neuron in the retina make up the optic nerve? Assume that water flowed through these valleys at some time. The even spacing indicates the hill has a uniform slope. BIOMEDICINE: Digestive System | Description o. 15. An excerpt from a contour map is shown below. Country A. Contour the water table data, using a contour interval of 10ft. Use the slope percent equation and solve. If you examine the graph showing the topographic profile in Figure 3.6, can you imagine what would happen to your profile if we changed the spacing for elevations on the y-axis? If you trace the length of a line with your finger, each point you touch is the same height above sea level. 2. For producing a detailed study of Sharp contour points indicate pointed ridges. The contour line is a line which defines the outline of an object. How far did the pole move in meters in one year during this time period? 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? When she treated such a mixture with EDTA, everything dissociated to 30S30 \mathrm{~S}30S and 50s50 \mathrm{~s}50s particles. General 1. Now draw contour lines on your map to represent the pyramid in three-dimensions on your map. Write your estimates for the elevation at each waypoint next to the waypoint. Give the elevation of the highest and lowest contour lines as well as the difference between them. A topographic map may or may not include shaded relief to help visualize steep slopes. Now difference between 7100 and 7000 is 7100 7000 = 100. example. Using the contour lines, determine the upstream direction of the creek. 46, black arrow). How old is the burial site? Please give your answer in grams/milliliter. Is the church likely to be at risk of contamination from this same leak? f. Connect the The contour interval is determined by the scale of the map and the degree of relief of the terrain being represented. Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. An error message is displayed. Low gradient and abundant sediment supply. Given that San Francisco is located on the North American Plate and Los Angles is located on the Pacific Plate, are these two cities getting closer together or farther apart over time? 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. "Contour" actually means "outline" in French, which is where the name comes from. lines enclose smaller and smaller areas. Expert Answer. which means that every place between the marked 6800 foot line and the next Write your answer in feet. 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? A topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. Each contour line shows a different elevation. Therefore, if you print it out in black and white please refer back to the electronic copy to avoid confusion. On most topographic maps, Go back to the location in Google Earth that you examined for question 36 (46 55 25.66 N 152 01 25.17 E). Contour lines A map has index contours at 250m, 500m, and. To illustrate what these hills look like in profile (or, how they would look if you saw them while standing on the ground and looking at them from a distance), you can draw what is known as a topographic profile. Vertical Controls the size of characters in the contour labels; default is 0.08". USask GEOL 121 Lab Final Exam Overview. Contour Interval on Topographic Map. Question 14. To calculate this divide the distance (in centimeters) between the two islands by the difference in their ages, Examine the headings of the measurements that you took for the previous two questions. Location B is higher. far apart represent gentle slopes. You can figure out the elevation of Slope Worksheet- Use the information from the example above and complete the slope worksheet. Step 4. pressing down on the middle mouse wheel and moving the mouse forward and Index contours are bold or thicker lines that appear at every fifth contour line. What is the approximate map relief? (1 pt) Find Deadmans Lake (it is located close to Cheakamus River and south of Daisy Lake; refer to Figure 7-E8 which is a close up from the map area). Lighter contour lines do not have elevations, but can be determined by counting USask GEOL 121 Rock & Mineral Quiz Information, 8. 0.5 in 24,000 in/in = 12,000 in 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 Grand Canyon is an extraordinarily steep area. 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). Does your topographic profile show any peaks or valleys? The difference between adjacent contour lines. If the numbers associated with the contour lines are decreasing, there is a decrease in elevation. On which date did a flood event have a recurrence interval of 0.5? The horizontal map distance measures 0.5 inches. 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. for Interpreting Topographic Maps Figure 7 . Contour lines are used to show elevation on a topographic map. Contour lines never cross. Choose the appropriate profile below. Extra Practice Question on Topographic Maps, Overview of Geological Structures Part 1: Strike, Dip, and Structural Cross-Sections, Exercises on Geological Structures Part 1: Strike, Dip, and Structural Cross-Sections, Overview of Geological Structures Part 2: Folds, Faults, and Unconformities, Exercises on Geological Structures Part 2: Folds, Faults, and Unconformities, 6. 3. These same fossils can be found in Australia, which indicates it, along with Antarctica, was also part of Pangaea at that time. Figure 4: Reading Contour Maps . Assume value is an integer variable. A slope is the rise or fall of the land surface. Examine the map below to answer the question. The result is expressed in feet per mile (ft./mi.). b. exaggeration: Map Example Sensor stability as characterized through mean absolute differences (MARD) on every study day including only sensors inserted on study day 1. 40 feet - 20 feet = 20 feet Math can be challenging, but with a little practice, it can be easy to clear up math tasks. How far have the snake fossils moved apart since they were originally deposited? 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. slope of the area you are interested in by subtracting the lowest elevation Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? To illustrate what these hills look like in profile (or, how they would look if you saw them while standing on the ground and looking at them . Therefore: Rise = change in elevation = top (Point A elevation) minus bottom (Point B . 7. If you were standing in the middle on the intermost contour line hill "c", your elevation would be. slope percent = rise/run 100 8. Mathematically, a contour line is a curve in two dimensions on which the value of a function f (x, y) is a constant. What approximate discharge would be associated with a 50 year recurrence interval? Also no adds. It is usually every fifth line that indicates a change in elevation. When you join you get additional benefits. 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. Learn more about how Pressbooks supports open publishing practices. Write your answer in feet. which of the above geologic events is the seventh in the sequence? Among other things, a topographic map can be used to measure the average slope 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). This makes reading the map easier. What is the gradient of the GC, What is the contour interval for the map below, Between the index counters on this map, the river gradient is.