Explain how you made this decision. A contour is a line drawn on a map that joins points of equal height above sea level. 8. which of the above geologic events is the second in the sequence, which of the above geologic events is the fifth in the sequence. All Rights Reserved. Orbiting spacecraft contain internal gyroscopes that are used to control their orientation. Contour interval: The change in elevation from one contour line to the next is always the same within the same map.Many maps have either a 40- or 80-foot contour interval: An 80-foot interval simply means that each contour line is 80 vertical feet away from . 3. Write your estimates for the elevation at each waypoint next to the waypoint. In which direction does it flow? Topographic maps STAAR Review | Topography Quiz - Quizizz Contour interval calculator - Math Index Note: This lab is in colour. Biology, 22.06.2019 02:10. 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. do not cross each other, divide or split. It is impossible to determine which location is higher. What does this type of drainage pattern indicate about the area? 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. Choose the appropriate profile below. Which of the following lakes has a shoreline that is most likely at an elevation between 10,240 and 10,320 feet above sea level? Approximately how far did the pole move per day? In what direction was the main river flowing? from the highest, and dividing the result by the horizontal distance. These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). 46, black arrow). Suppose that (x,y,z)=i+k\nabla \varphi(x, y, z)=\mathbf{i}+\mathbf{k}(x,y,z)=i+k. A slope is the rise or fall of the land surface. below cuts the mountain at equal intervals of elevation. To show information. (b) Why do you think reassociation to 1005 and 130 S particles did not work? All contour lines are spaced at a 20 m contour interval. Example 1- In the graphic below, what is the vertical distance between the contour lines? How far did the pole move in meters in one year during this time period? To show different features of Earth's surface. Note: if you are unable to read the contours on the map, view the original map on the web or look at the large printed copy in the lab. In Figure 9.4, what is the elevation of the highest point on Farrow Mountain? What factors control the course of this river? Log in to TheConstructor to ask questions, answer peoples questions, write articles & connect with other people. in the southern portion of the map, the area is underlain by limestone. Show your work. Lakes/Ponds. This content is subject to copyright. 19. Using the surrounding contour lines, what is the approximate elevation of Deadmans Lake? Calculate how fast the Hawaiian Islands are sinking, by using the ages and elevations of Maui and Nihoa. Adapted by Joyce M. McBeth, Sean W. Lacey, & Tim C. Prokopiuk (2018) University of Saskatchewan from Deline B, Harris R, & Tefend K. (2015) Laboratory Manual for Introductory Geology. The figure above illustrates various topographic features. Step-by-step explanation. 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? the entire earth to a city block (or less). View Source. Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. Contour lines make a v pattern as they cross streams and rivers, and the v always points towards the upstream direction. Because there isnt a 60ft contour line on this hilltop, we know that the hills highest point (the crest) is some elevation between 50 and 60ft. The elevation at sea level is zero meters. 16. Contour lines that are very close together indicate a steep slope. topographic profiles: Remember that topographic maps represent The direction system is useful but imprecise. Was Carter Lake cut off before or after the state boundary between Nebraska and Iowa was drawn? Examine the path of the river that feeds into and flows out of Quail Lake. Contour lines are used to show elevation on a topographic map. The column and row indices of Z are the x and y coordinates in the plane, respectively. b. The lowest contour line is at 200m. USask GEOL 121 Rock & Mineral Quiz Information, 8. (3 pts) Based on the scale chosen for you for the topography (vertical axis), calculate the amount of vertical exaggeration on the topographic profile you constructed for question 4. Hint- make sure to re-read the section on plate boundaries before answering! Explain why. Go back to the location in Google Earth that you examined for question 36 (46 55 25.66 N 152 01 25.17 E). What is the term for the geologic feature called Carter Lake? . North 3050 4000 ft 1 km 3050 1:25,000 A. Contour interval 10 a. What is the contour interval on a map based on? Use the appropriate conversion factor to convert the horizontal map distance to horizontal ground distance. 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. fault. The map has a contour interval of forty feet, Understanding Topographic Maps - Idaho State University What happens when the lithosphere at point X is heated to 1500 C? How to Determine Elevation From a Topographic Map with the labeled contour lines at the bottom of the profile paper and project If the arrow is pointing toward the contour lines around your location, your location is a higher elevation than the index contour line. Write your answer in feet. Topographic contour lines, the steeper the slope. Would the recurrence interval for this flood plot at: Is it possible that a flood with a similar discharge to that of the event from 9/23/2009 could happen again in the next 20 years? What is the elevation of the base of the monument in meters? Notice the general shape of this feature. What is the gradient? A low relief. Set up the cancellation table so all units will cancel, except the desired unit, feet. See example under CONTOUR/SPACING below. In every map, on the right-hand bottom side, the contour interval is specified. What shape are the contour lines that cross a valley or stream? As you can see contour lines with 10 m interval. For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. points. For the following exercises, please refer to British Columbia Topographic Map 092G095 of the Mount Garibaldi area in southern BC. TOPOGRAPHIC MAP EXERCISE - Wenatchee Valley College Its Calculation, Uses and When it is Required, Factors Affecting the Selection of Contour Interval. On our map, point "P" lies between 3000 feet and 4000 feet contours . (in feet) between the two points. The purpose of this lab is to familiarize students with how to read and use topographic maps. on a map that are produced from connecting points of equal elevation (elevation Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. If the numbers associated with the contour lines are decreasing, there is a decrease in elevation. How far apart are North America and Mainland Asia in cm? Consider the ages and positions of the islands listed above along with what you know about plate tectonics and hotspots. A beginners guide to understanding map contour lines - Table 8 . First, we must identify the two contours that lie on either side of "P." In some cases the contours that we need are clearly labeled; however, in other instances, you will need to use the contour interval (1,000 feet, in this case) to "count" up or down from a labeled contour. 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). Answered: Topographic Maps EXERCISE 2 POST-LAB | bartleby (b) Notice how a mountain saddle, a ridge, a stream, a steep area, and a flat area are shown with contour lines. How far did the pole move? up or down from the nearest index contour line and multiplying by the contour Find Sloans Crossing. The Wadati-Benioff zone is associated with which type of plate boundary? What type of tectonic plates are present? (1 pt) Explain in a sentence how a ratio scale works. The difference in elevation between one contour line and the next. 200 feet. Vertical Select the Forests across much of the United States are becoming denser. Locate the Louisville and Nashville Railroad line just south of Hwy. See the example under CONTOUR/SPACING below. What is the area of the slab? 3. The contour line is a line which defines the outline of an object. What Is Contour Interval ? : Steps Of Calculating, Characteristics Likewise the "40" contour connects depths of 40 ft below sea level and so on. slope percent = rise/run 100 What are the different types of handrails used in bridges? a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells, In Figure 1.8, which of the following rock layers is. in Figure 9.4, what is the elevation of the intersection of U.S. Route 1 and Maine Route 6 in Topsfield? To calculate the vertical exaggeration in the topographic profile shown in Figure 3.6 we divide the horizontal scale by the vertical scale: (\(\frac{\frac{1000\;ft}{1\;inch})}{(\frac{100\;ft}{inch}}) = 10\). What type of bedrock is present in this area? Based on the assemblage of organisms (A-I) in this sample, what is the age of this rock? Take that distance and divide it by the speed you calculated in question 3 to estimate when the next supercontinent will form. In this stream, erosion is occurring on the ______________ because _______________, while deposition is occurring on, Cut banks, the fast velocity flows to this point; point bars the slowest velocity water flows to this point. Assume value is an integer variable. According to your best fit line, what is the recurrence interval of such a discharge? slope of the area you are interested in by subtracting the lowest elevation Contour plots with Excel and Matplotlib Select the XYZ data arranged as a single range (Range I4:N8 in the data screenshot below). Divide the current maximum elevation of the Big Island by the rate you calculated in the previous question. The small contour interval, the survey work and plotting have to be more accurate. If so, what are the corresponding highest and lowest elevations? 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. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. What is Melodic Contour in Music? - Study.com The contour interval is determined by the scale of the map and the degree of relief of the terrain being represented. The final answer we get after dividing is the contour interval of the specific topographical map. nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems . Considering the size of the area to be mapped, contour intervals are assumed. Using a contour interval of 40 m, label the elevation of every contour line on the map below. What does each contour line on a map show? A. Contour the water table data, using a contour interval of 10ft. far apart represent gentle slopes. "Contour" actually means "outline" in French, which is where the name comes from. Contour lines do not cross each other, divide or split. 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). Using the map below ( Figure 6 ), what is the contour Write your answer in feet. For example, the first hill on the left has a top contour line of 50ft. which of the above geologic events is the seventh in the sequence? 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? right hand portion of the window. 2. 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. contour (X,Y,Z) specifies the x and y coordinates for the values . Contour lines The contour lines in this figure are equally spaced. What type of drainage pattern would this area represent? Based on your answer to question 6 which of the following statements about the break-up of Pangaea is TRUE? (1 pt) Mount Price is located next to Garibaldi Lake (just west of Table Bay, Figure 7-E9 above). Now difference between 7100 and 7000 is 7100 7000 = 100. 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). Refer to Problem 14.1 for guidance. Zoom out and examine the surrounding area, what geological hazards are likely in the area? A topographic profile is a cross-sectional view Use the topographic map (Fig. These same fossils can be found in Australia, which indicates it, along with Antarctica, was also part of Pangaea at that time. This means every point on a contour line has the same altitude as that of the assumed intersecting surface. 1 What is the contour interval on this map? - Istudy-helper.com Remember, because of isostasy the denser plate will be lower than the less dense plate. Step 4. The horizontal map distance measures 0.5 inches. 1) The contour interval between contour is 40m. the boundary follows the course of the river at the time it was drawn, the river has since moved. A topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. For this computation, the rise, or vertical ground distance, and run, or horizontal ground distance, are needed. . What is the name of the family that contains beryllium? For small contour interval, the money required will also more as the field and office work will be more. Sorry, you do not have permission to ask a question, You must log in to ask a question. Index contours are prominent or dense lines that bob up at every 5th isometric line. Answer: B. tilting. BIOMEDICINE: Digestive System | Description o. Why does the boundary depart from the river channel? A person standing at point "F" would only be visible to a person standing at: Examine the figure below. a landform it is necessary to construct a topographic profile or cross-section For Ex: If the number of lines between 2 index lines are 5. If the counter interval is 10 feet, which hill (a,b,c) when viewed from the base is 40 feet tall? Solved What is the contour interval for the figure below? D - Chegg 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. 1. For a relief map the contour interval is frequently persistent. British Columbia Topographic Map 092G095. 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. . Step 1. A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. Which of the following statements about them is true? What is the dc collector resistance? For the plotting of region, the contour intervals are presumed. In the above figure, the dark lines with reading are index contour lines. (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. interval. When the contour interval is not specified in the map, it can be calculated as explained in the following sections. Isolines - Geog 101 Lab - University Of Hawaii A thumbnail version of the map is shown in Figure 7-E7,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. PDF 2-1. BATHYMETRIC CHARTS - UMass D Control of the body is accomplished by which of the following body systems? think about the drainage pattern you selected in the previous answer - what does this tell you about the underlying rocks? Also no adds. How to Read Topographic Maps - Gaia GPS Contour Interval - Calculation - Examples - Types - Scale - Definecivil which of the above geologic events is fifth in the sequence. look at a map of the Sulphur-Boundary Creek area along the Middle Fork of the Overview section 7.3 provides background information on contour lines to prepare you for these exercises. 2. Where do the P waves abruptly change? It is determined as follows: Let's take an example of two contour lines which are labelled. a stream or river and dividing the distance (in miles) into the vertical difference How and why do we divide stars into groups by mass? Refer to the figure below and assume contour interval of 10 feet. An excerpt from a contour map is shown below. 8,194,375 years to sink. Finding Elevation and contour intervals Quiz - Quizizz Sharp contour points indicate pointed ridges. A topographic map may or may not include shaded relief to help visualize steep slopes. Step 2. 2. The vertical distance or difference in elevation between contour lines is known as a contour interval. Notice the tick marks pointing toward lower elevation. Contour lines The contour interval is stated on every topographic map and is usually Then, find the difference in elevation between the two points. Chapter 3 Topographic Maps by Karen Tefend and Bradley Deline, CC BY-SA 4.0. Contour chart in excel | Math Index
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