What is the elevation of the base of the monument in meters? The map has a contour interval of forty feet, (10 pts) Imagine you are a geologist working for the Geological Survey of Canada. a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells, In Figure 1.8, which of the following rock layers is. How and why do we divide stars into groups by mass? Show that the streamlines of \nabla \varphi are orthogonal to the level surfaces of \varphi. Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). Usually there are different contour intervals for the different maps. (1 pt) How much higher is Mount Price than Garibaldi Lake? d. Is the elevation of waypoint D > or < waypoint C? Horizontal The lowest contour line is at 200m. Is the church likely to be at risk of contamination from this same leak? The desired unit is feet. 10. each contour to the horizontal line of the same elevation. Why do you think then that only a 1-2 drops of indicator is used in an acid-base titration? What feature(s) can you observe south of Hwy. Figure 4: Reading Contour Maps . Terms and conditions apply. 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? We further visualize the globally normalized responses of each convolution filter on the image of grating interval 6 in Figure 5 B. Q. Does your topographic profile show any peaks or valleys? 250/5 = 50. Assume that water flowed through these valleys at some time. Note: the maps used in this lab are in colour and the colours have significance in terms of the symbols and patterns used on the maps it is best to print this lab in colour and from a pdf version. Examine the map below to answer the question. Lines or isolines on a map that connect points with the same elevation. 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. Clear up mathematic tasks. It is south of Mammoth Cave. Explain how you made this decision. 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? Gradient: Stream gradient can also be determined from a topographic The Contour Interval of the above map us 20 Units. points. -- - . 1. What does each contour line on a map show? When the contour interval is not specified in the map, it can be calculated as explained in the following sections. The vertical distance or difference in elevation between contour lines is known as a contour interval. Closer distance indicates steep slope and wider distance gentle slope. Go back to the location in Google Earth that you examined for question 36 (46 55 25.66 N 152 01 25.17 E). The contour music definition is the same definition in any medium such as visual art,. 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. Give the elevation of the highest and lowest contour lines as well as the difference between them. How far (in Km) did the pole move in one year during this time period? In most maps, every fifth contour line is an index contour. If the counter interval is 10 feet, which hill (a,b,c) when viewed from the base is 40 feet tall? 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? Follow the creek along its path. B. Construct flow lines emanating from each point " x " to illustrate the groundwater flow field on the map. For a relief map the contour interval is frequently persistent. Scale (contour interval): All maps have a horizontal scale. d. Prepare a vertical A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. Why? Overview section 7.3 provides background information on contour lines to prepare you for these exercises. in Figure 9.4, what is the elevation of the intersection of U.S. Route 1 and Maine Route 6 in Topsfield? Vertical exaggeration is the effect that is created when the horizontal and o drainage ' divide or watershed boundary 1000 ft -::-:: Contour interval 50 Feet Figure 12.5 Flow lines across a topographic surface. For producing a detailed study of Compare the contour intervals from the Royal Gorge, Colorado map (map 5.1) to the Omaha N, Nebraska-Iowa map. In this case, to find out the intermediate points elevation, contour intervals are used. What is the benchmark elevation at Sloans Crossing? If the arrow is pointing toward the contour lines around your location, your location is a higher elevation than the index contour line. Controls the size of characters in the contour labels; default is 0.08". the profile line. backward or by clicking on the arrows above and below the eye in the upper For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. None of these. A. 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. The zone from 2900-5100 represents the Earth's ? Contour lines rules: 1. f. Connect the Transcribed image text: vertical scales on your topographic profile are not the same. In every map, on the right-hand bottom side, the contour interval is specified. 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? USask GEOL 121 Rock & Mineral Quiz Information, 8. hillslope: Example 2- Draw a profile showing the elevations of the contours. Determining For this computation, the rise, or vertical ground distance, and run, or horizontal ground distance, are needed. The contour line is a line which defines the outline of an object. What would happen to the mantle rock at point X if water is added to it? Now draw contour lines on your map to represent the pyramid in three-dimensions on your map. How contour lines show a pair of small hills It is a plane section of the three-dimensional graph of the function f parallel to the-plane. What is the relief of the area in the map? As you can see contour lines with 10 m interval. As an example, What is Contour Interval? Contour lines that are very close together indicate a steep slope. A simple diagram is shown below on the left. What is the physical state of a dry mantle rock at point X? Question 20. MATLAB automatically selects the contour lines to display. All melodies have contours. Determine the elevation at Point A and Point B in the Figure 9 map below. 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. Vertical What type of plate tectonic boundary is present? V shaped. (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. The even spacing indicates the hill has a uniform slope. Measure the horizontal map distance between points A and B to get the vertical ground distance. A topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. (1 pt) Mount Price is located next to Garibaldi Lake (just west of Table Bay, Figure 7-E9 above). (5 pts) Figure 7-E4 shows five waypoints (A, B, C, D, and E) on a topographic map. 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? 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. When the vertical dimension of your graph is different from the horizontal dimension on your map, you may end up with a graph that shows a vertical exaggerationand the features of the Earth represented by your topographic profile may be deformed such as in Figure 3.7. 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. The difference in elevation between the highest and lowest points in the area on the map. a) Label the elevation of every contour line on the map. 8,194,375 years to sink. Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers? You are tasked with creating your own coastal topographic map, so you hike around a coastal area with a GPS receiver (Global Positioning System) and every so often you record your position along with the elevation in metres at that point, which results in the map below (Map 7-E5). 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. The steepest slope on this hill can be found on the side that is facing which direction? Please give your answer in grams/milliliter. 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. 400 D. N a) point A 00 D. N a) point A b) point D c) point B d) point Example Calculation of Contour Intervals: Factors Affecting Durability of Fiber Reinforced Concrete (FRC), Measuring Tape: Anatomy, Marking, and Steps to Measure, Tacheometric Surveying: Principle, Procedure, and Advantages, Types of Foundation for Buildings and their Uses [PDF], Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results, 16 Types of Heavy Equipment Used in Construction, Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates, Methods of Rainwater Harvesting [PDF]: Components, Transportation, and Storage, Exploring the Impact of Construction Robots on the Industry, How to Maintain a Brick Chimney for Maximum Efficiency, A Shining Future: The Benefits of Solar Energy, What You Should Know Before Installing Mud Flooring. contour (X,Y,Z) specifies the x and y coordinates for the values . The intersection between the landscape and the horizontal paper marks the location of the contour lines on a two-dimensional map. A contour interval is a vertical distance or the difference in the elevation between the two contour lines in a topographical map. The highest point on a topographic map is marked as 345m. 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). General Considering the above map, the steps involved in contour interval calculation are. 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. The height of an object above the surface of the sea. (1 pt) What is the ratio scale of this map? scale on profile paper by labeling the horizontal lines corresponding to the Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. 500/10=50 What do close contour lines represent on a map? with the labeled contour lines at the bottom of the profile paper and project how old is the sequence of rocks. Please hand in this lab to your TAs at the end of the lab period. Betwe View the full answer Transcribed image text: What is the contour interval for the figure below? British Columbia Topographic Map 092G095. Taking the area to be mapped, contour intervals are considered. The given point, 537', therefore, must lie between the 520' and 540' contours (contours aand b). Flood stage, or bankfull stage, on Sweetwater Creek occurs at a discharge of ~4,500 cfs. When you join you get additional benefits. 225 feet; half the contour interval lower than 250 feet. Salmon River This map is a geologic map of glacial geology in the area, drawn What is the contour interval? A profile may be constructed Hint- make sure to re-read the section on plate boundaries before answering! A higher contour interval is used for a large area and small contour interval for small area. The shaded areas indicate the 95% confidence intervals. In Figure 9.4, what is the elevation of the highest point on Hunt Ridge (keep in mind step #4 from the first question)? The final answer we get after dividing is the contour interval of the specific topographical map. Index contours are bold or thicker lines that appear at every fifth contour line. Refer to the figure below and assume contour interval of 10 feet. with the elevation of the contour it represents. Consideration in making the choice of the proper contour interval . above or below it, multiplying by the contour interval, and adding or subtracting Determine the height of Mount Price. At 500 degrees Celsius, rocks will be buried to about _______ km depth. - Table 8 . Point D is marked at 10,000 elevation and the next label is marked as 10,500 elevation. Therefore, if you print it out in black and white please refer back to the electronic copy to avoid confusion. The figure above illustrates various topographic features. What is the gradient? Figure 7 . In the above figure, the dark lines with reading are index contour lines. The horizontal map distance measures 0.5 inches. A high relief. Where do the P waves abruptly change? 750m. Which gas station is the most likely source of the gasoline leak? Chapter 3 Topographic Maps by Karen Tefend and Bradley Deline, CC BY-SA 4.0. It is important for the farmer or irrigator to identify the slopes on the land. the archeologist determines that there is 16.7% of the parent isotope remaining in the cloth sample. Choose the appropriate profile below. To use the same interval for both x and y , specify xyinterval as a two-element vector of the form [min max]. Usually there are different contour intervals for the different maps. 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. 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? 13. look at a map of the Sulphur-Boundary Creek area along the Middle Fork of the a landform it is necessary to construct a topographic profile or cross-section 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. What type of bedrock is present in this area? 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. The number of contour lines in-between 7000 and 7100 are 4. Dont forget to add a contour line to the map legend! They then cross the stream and turn back along the opposite bank of the stream forming a "v". Convergent (Continent-Ocean or Ocean-Ocean). What type of process is going on at this location? For small contour interval, the money required will also more as the field and office work will be more. (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. Write your estimates for the elevation at each waypoint next to the waypoint. The zone from 5100-6400 represents the Earth's ? If the river on this map is 1.93 miles long, what is the gradient for this river? Question 14. 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. Mountain/Hill Depressions 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 . For all of the following figures, assume north is at the top of the map, and south at the bottom. Legal. In which zone do the P wave velocities appear to be steadily increasing? Mark Slope Worksheet- Use the information from the example above and complete the slope worksheet. 31. These same fossils can be found in Australia, which indicates it, along with Antarctica, was also part of Pangaea at that time. 1. For Ex: If the number of lines between 2 index lines are 5. Explain why. Sharp contour points indicate pointed ridges. How old is the burial site? Thus, ais 520'; bis 540'. which isotopic system should they use. Note: there is technically more than one correct answer for some of these questions. An excerpt from a contour map is shown below. 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. Do Pole movements seem to be steady every 100 years or variable? A map has index contours at 250m, 500m, and. The result is expressed in feet per mile (ft./mi.). What type of drainage pattern is present in this area? These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). Zoom out and examine the area, what other type of boundary is nearby? What must be the maximum dry density of Granular Sub Base & Wet Mix Macadam used What is the Safe Bearing Capacity values for Different Soils? (a) Suggest what the 100S100 \mathrm{~S}100S and 130S130 \mathrm{~S}130S particles might represent, in light of current knowledge of protein synthesis. What happens when the lithosphere at point X is heated to 1500 C? What is the contour interval of the Figure 9 map (shown at the bottom of the page)? 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. example. it shows natural features such as rivers and lakes. The contour interval is determined by the scale of the map and the degree of relief of the terrain being represented. 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. Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? Expert Answer. 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. Where does it wind up? The overview section 7.4.2 provides useful background to help you answer questions 4 & 5. What is the latitude for this monument? The older unconformity is a Nonconformity, while the younger is a Disconformity. What are the different types of handrails used in bridges? Line 1 starts with the contour interval, not the projection point. Why are colors and symbols used on topographic maps? 1 What is the contour interval on this map? The lines point toward the center of the depression. What important discovery did the researcher miss? A contour map consists of contour lines of a given geographical region. tilting. 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. Note where this would plot on your graph. What factors control the course of this river? Axons from which neuron in the retina make up the optic nerve? View the full answer. lowest line (which is 6760 feet, and not marked) has an elevation equal or greater In the given figure contour interval is 50 feet. You will receive a link and will create a new password via email. These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). It is determined as follows: Let's take an example of two contour lines which are labelled. Trees growing in denser stands experience more competition for essential resources, which can make them more vulnerable to disturbances. What is the name of the family that contains beryllium? a stream or river and dividing the distance (in miles) into the vertical difference According to your best fit line, what is the recurrence interval of such a discharge? refers to height in feet, or meters, above sea level). 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. Start climbing from the foot of a hill toward the top, this is called a rising slope (see Fig. Sorry, you do not have permission to ask a question, You must log in to ask a question. Scale: Maps come in a variety of scales, covering areas ranging from Which of the following places represent a Wadati-Benioff zone? Now difference between 7100 and 7000 is 7100 7000 = 100. These features you are seeing are linear valleys. Are the rocks likely tilted and folded or horizontal? Join now! What is the latitude on the northern edge of this rectangle? Q: Refer to figure 23.5. Contour lines Lines or isolines on a map that connect points with the same elevation. a geologist is trying to date a sequence of sedimentary rocks with abundant fossils and sandstones. Which of the three proposed plate tectonic mechanisms would NOT occur at this location? A contour interval is a vertical distance or a difference in elevation between contour lines in a topographic map, index contour lines are bold or thick lines that appear on every fifth contour line and if the number associated with specific contour lines is increasing, the elevation of the area is also increasing. located below the scale. 2. Table of Contents and lab manual chapter pdf files for download, Overview of Canadian Geology and Mineral and Energy Resources, 4. From the contour map, a profile can be drawn of the terrain. In which direction does it flow? It is usually every fifth line that indicates a change in elevation. On a topographic map, a contour line is a line that depicts ground elevation or depression. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? Was Carter Lake cut off before or after the state boundary between Nebraska and Iowa was drawn? the "V" points to the area of higher elevation or upstream. All contour lines are spaced at a 20 m contour interval. They also show some features made by people such as brodges. 200 feet. In what direction was the main river flowing? TAs names: _______________ _______________. Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. Observe the velocities of waves on the graph. as sinkholes, underlying soluble rock was dissolved and area collapsed.
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