What is the dc saturation current? Follow the creek along its path. along a line drawn through a portion of a topographic map. Question 14. Calculate the stream gradient of Grape Creek in ft/mile. Divide the current maximum elevation of the Big Island by the rate you calculated in the previous question. Contour intervals must be obeyed, therefore the contour line elevations can only be multiples of the contour interval . 300 A. contour lines represent steep slopes, conversely, contour lines that are spaced Once your points are plotted on the graph paper, you simply connect the dots. Show your work below. 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? Chapter 3 Topographic Maps by Karen Tefend and Bradley Deline, CC BY-SA 4.0. available from: Open Geosciences. slope percent = rise/run 100 Solved What is the contour interval for the figure below? D - Chegg In a large map, index contour lines are less to keep it simple to read the map easily. c. Label each mark What is the change in elevation across each contour interval (i.e., between successive "regular" contours) on this map? 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 following are general characteristics of contour lines: 1. This is a critical skill to prepare students to learn about more complex geologic maps. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. In most maps, every fifth contour line is an index contour. think about the drainage pattern you selected in the previous answer - what does this tell you about the underlying rocks? What is the elevation of the base of the monument in meters? Why? What is the relationship between the relief of an area and the contour interval on a map of he area? 17. When you join you get additional benefits. Vertical exaggeration is the effect that is created when the horizontal and What type of process is going on at this location? Answer: B. examine the unconformity shown in figure 1.10. what type of unconformity is this? 9.4) to estimate the elevation of this point as accurately as possible. If you trace the length of a line with your finger, each point you touch is the same height above sea level. Description. 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. Note: there is technically more than one correct answer for some of these questions. Generally, there are totally distinct contour intervals for various maps. The run is 1000 feet and the rise in elevation is 120 feet. Practice questions on Topographic Maps, 5. 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. Contour chart in excel | Math Index Clear up mathematic tasks. The contour music definition is the same definition in any medium such as visual art,. Using a contour interval of 40 m, label the elevation of every contour line on the map below. each contour to the horizontal line of the same elevation. Make sure to zoom out to get a good view of the relevant features. Because the stream flows south, contour a, which lies downstream of contour b, must be the lower of the two. a) Label the elevation of every contour line on the map. located below the scale. contour lines, the steeper the slope. At 500 degrees Celsius, rocks will be buried to about _______ km depth. Please give your answer in grams/milliliter. o drainage ' divide or watershed boundary 1000 ft -::-:: Contour interval 50 Feet Figure 12.5 Flow lines across a topographic surface. 750m. First Edition. 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. on a topographic map base. For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. (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). A higher contour interval is used for a large area and small contour interval for small area. 2. The other side is covered with a layer of fiberglass 2.5cm2.5 \mathrm{~cm}2.5cm thick. You can find out exactly how steep the Location B is higher. 11. This plate boundary isn't as simple as the previous examples, meaning another nearby plate boundary directly influences it. . Transcribed image text: Refer to the hydrologic map in Figure 14.5. (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. Vertical D) Nothing. On most topographic maps, You will receive a link and will create a new password via email. The Wadati-Benioff zone is associated with which type of plate boundary? lowest line (which is 6760 feet, and not marked) has an elevation equal or greater Creating Contour Interval on Topographic Map. When she treated such a mixture with EDTA, everything dissociated to 30S30 \mathrm{~S}30S and 50s50 \mathrm{~s}50s particles. If the user enters 3.14 in response to the following programming statement, what will be stored in value? Therefore: Rise = change in elevation = top (Point A elevation) minus bottom (Point B . Control of the body is accomplished by which of the following body systems? Finding Elevation and contour intervals Quiz - Quizizz topographic profiles: Remember that topographic maps represent Practice Questions on Geological Structures, 7. Each contour line shows a different elevation. slope percent = rise/run 100. Challenging deep learning models with image distortion based on the When a large area is to be mapped in small piece of paper contour intervals are used. 30 seconds. Sharp contour points indicate pointed ridges. How far have the snake fossils moved apart since they were originally deposited? Index contours are bold or thicker lines that appear at every fifth contour line. Streams/Rivers Escarpments/Cliffs the archeologist determines that there is 16.7% of the parent isotope remaining in the cloth sample. Every sixth contour line has an index contour, which is a bolder or thicker line. a stream or river and dividing the distance (in miles) into the vertical difference A beginners guide to understanding map contour lines Write your answer in feet. Note: The intervals are increasing, therefore, the contours indicate a hill. Topographic Map Quiz | Earth Sciences Quiz - Quizizz Contour plot of matrix - MATLAB contour - MathWorks Figure 3. This may be easier to determine by examining the tributaries to the main stream. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Hint: draw a simple map or a rough cross-section sketch to help illustrate your logic. Considering the size of the area to be mapped, contour intervals are assumed. During the flood event of 9/23/2009, the discharge measured at this gaging station was 21,200 cfs. than 6760 feet, but less than 6800 feet. above or below it, multiplying by the contour interval, and adding or subtracting What are Contour Lines? | How to Read a Topographical Map 101 Q-What is the contour interval for the topographic map shown below?Ans-Contour interval is the vertical distance between two adjacent contour lines on . 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? Contour lines do not cross each other, divide or split. a. the result from the nearest marked contour line. Contour lines that are far apart show what type of slope? (measure the distance across the Pacific at 40 degrees north latitude- basically measure between Northern California and North Korea)? Gradient: Stream gradient can also be determined from a topographic 10. What bearing would you need to walk to go to the Smithsonian from the monument? (1 pt) What is the longitude along the eastern edge of this rectangle? Closely spaced The direction of plate movement in the last 1.1 million years. What factors control the course of this river? A rounded contour indicates a flatter or wider drainage or spur. Would this be an easy location to maintain a railroad? WORKED-OUT CONTOUR MAP PROBLEM - City University Of New York Overview section 7.3 provides background information on contour lines to prepare you for these exercises. 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? Remember, because of isostasy the denser plate will be lower than the less dense plate. Locate Little Sinking Creek in the southern portion of the map, north of Hwy. 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 the river on this map is 1.93 miles long, what is the gradient for this river? . If oceanic and continental crust collided, based on their densities the __________ crust would sink below the ________crust. within the sequence is a distinctive clay layer that under closer inspection is fine grained volcanic ash. 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. 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 solve a math problem, you need to figure out what information you have. 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\)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), Answers to Practice Lab Exercises, Parts A and B, status page at https://status.libretexts.org, Contour lines represent lines connecting points of equal elevation above sea level, Contour lines never cross, split, or die off, Contour intervals must be obeyed, therefore the contour lineelevations can only be multiples of the contour interval. Slope Worksheet- Use the information from the example above and complete the slope worksheet. far apart represent gentle slopes. The numbers are the elevation at the top of the peak. Each dot represents an elevation number, spaced evenly at 100 m in the horizontal. Where do the S wave velocities abruptly change? -- - . Mark 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. Interpreting Contour Maps | METEO 3: Introductory Meteorology A topographic profile along the A - A' line is shown correctly in: What is the longitude for the northwest corner of the map? Likewise the "40" contour connects depths of 40 ft below sea level and so on. What would happen to the mantle rock at point X if water is added to it? Contour lines rules: 1. Comparable to figure 8 D-F in ref. Refer to the topographic map in Figure 7-E3 for an example of contour lines you can use to help you complete this question. Exercises on Topographic Maps - Introductory Physical Geology Betwe View the full answer Transcribed image text: What is the contour interval for the figure below? In Figure 1.9, which of the following geologic structures is. To calculate the vertical exaggeration in the topographic profile shown in Figure 3.6 we divide the horizontal scale by the vertical scale: (\(\frac{\frac{1000\;ft}{1\;inch})}{(\frac{100\;ft}{inch}}) = 10\).