Upon adding divalent ions, she could regain 70S70 S70S particles, but never 1005 or 1305 particles. Using the surrounding contour lines, what is the approximate elevation of Deadmans Lake? Vertical
68 and south of the Edmonson County Line. refers to height in feet, or meters, above sea level). The contour line is a line which defines the outline of an object. View the full answer. What can be said about level surfaces of \varphi? The even spacing indicates the hill has a uniform slope. Information
This is a critical skill to prepare students to learn about more complex geologic maps. Streams/Rivers Escarpments/Cliffs (1 pt) If someone decided to climb Mount Price, what would be the easiest and safest route to take? During the flood event of 9/23/2009, the discharge measured at this gaging station was 21,200 cfs. For example, if you wanted to do a contour line drawing of a pear, you'd simply draw the outline of the pear, add a stem, and stop there. Thus, ais 520'; bis 540'. 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). For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. A contour map consists of contour lines of a given geographical region. To determine the elevation of a point on a topographic map: The highest point of the rim of the crater is about 350. 7. . a geologist is trying to date a sequence of sedimentary rocks with abundant fossils and sandstones. What type of plate tectonic boundary is at this exact location? 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. the "V" points to the area of higher elevation or upstream. Lakes/Ponds. In what direction was the main river flowing? Stream channels radiate outwards like wheel spokes from a high point. This content is subject to copyright. What approximate discharge would be associated with a 50 year recurrence interval? which Geologic Law did you use to come to the conclusion you made in the previous question? Note: there is technically more than one correct answer for some of these questions. scale on profile paper by labeling the horizontal lines corresponding to the
Are the rocks likely tilted and folded or horizontal? At the point where 2 contour lines would cross would have 2 different elevations which is impossible. The elevation at sea level is zero meters. Practice Questions on Geological Structures, 7. Adjacent means next to. A contour interval is the vertical distance or difference in elevation between contour lines. This may be easier to determine by examining the tributaries to the main stream. What is the dc collector resistance? Lets assume, 7000 and 7100 and calculate the interval between it. On a topographic map, a contour line is a line that depicts ground elevation or depression. (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. (2 pts) What is the ratio scale used on this map? The zone from 20-2900 Km represents the earth? 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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. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? One side of a copper block 5cm5 \mathrm{~cm}5cm thick is maintained at 250C250^{\circ} \mathrm{C}250C. What would cause two separate samples of pure water to have slightly different pH\mathrm{pH}pH values? it shows natural features such as rivers and lakes. What is the relationship between the relief of an area and the contour interval on a map of he area? How far apart are North America and Mainland Asia in cm? This page titled 3.6: Drawing Contour Lines and Topographic Profiles is shared under a CC BY-SA license and was authored, remixed, and/or curated by Deline, Harris & Tefend (GALILEO Open Learning Materials) . Scale: Maps come in a variety of scales, covering areas ranging from
Description. Examine unconformities 1 and 2 indicated in Figure 1.9. Contour line art is a method of drawing where you draw only the outline of an object, without any shading. The height of an object above the surface of the sea. tilting. Lighter contour lines do not have elevations, but can be determined by counting
A. V shaped. Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. Among other things, a topographic map can be used to measure the average slope
Where do the S wave velocities abruptly change? Therefore: Rise = change in elevation = top (Point A elevation) minus bottom (Point B . To calculate this divide the distance (in centimeters) between the two islands by the difference in their ages. They also show elevation. To show different features of Earth's surface. which Geologic Law did you use to come to the conclusion you made in the previous question (figure 1.8)? Low gradient and abundant sediment supply. Figure 2 is the cross section along line AB. (5 pts) Figure 7-E4 shows five waypoints (A, B, C, D, and E) on a topographic map. As a contour approaches a stream, canyon, or drainage area, the contour lines turn upstream. Transcribed image text: 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. At 500 degrees Celsius, rocks will be buried to about _______ km depth. The shaded areas indicate the 95% confidence intervals. A person standing at point "F" would only be visible to a person standing at: Examine the figure below. Use the slope percent equation and solve. How far did the pole move? What type of tectonic plates are present? Measure in centimeters the distance (Map Length) between the two points you recorded in the previous question. e. Is the elevation of waypoint A > or < waypoint B? USask GEOL 121 Lab Final Exam Overview. 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. Divide the current maximum elevation of the Big Island by the rate you calculated in the previous question. far apart represent gentle slopes. The Contour Interval of the above map us 20 Units. Does your topographic profile show any peaks or valleys? Show your work! fairmount. Contour values are in feet. 16. If the relief is high (bigger change) you will need a bigger contour interval. example. Remember, because of isostasy the denser plate will be lower than the less dense plate. Use the index contour just above the "m" in Temple Canyon for your initial spot. (in feet) between the two points. They are usually mapped with large contour intervals. contour lines represent steep slopes, conversely, contour lines that are spaced
What is the longitude for the Washington Monument, locate the base of the monument. A topographic profile along the A - A' line is shown correctly in: What is the longitude for the northwest corner of the map? Please hand in this lab to your TAs at the end of the lab period. Show your work. Observe the velocities of waves on the graph. which of the above geologic events is fifth in the sequence. What type of drainage pattern would this area represent? You can find out exactly how steep the
Each dot represents an elevation number, spaced evenly at 100 m in the horizontal. Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). A low relief. Select the The overview section 7.4.2 provides useful background to help you answer questions 4 & 5. Widely separated contour lines indicate a gentle slope. the archeologist determines that there is 16.7% of the parent isotope remaining in the cloth sample. 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 . First, subtract the lower number from the higher number and then divide the result by the number of contour lines. What type of drainage pattern is present in this area? In this case, to find out the intermediate points elevation, contour intervals are used. characteristics of contour lines: 1. This means every point on a contour line has the same altitude as that of the assumed intersecting surface. C. Melodic contour is the shape and sequence of movements of a melodic line. A contour line of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. long-term time-average of sea level). The more closely spaced the
You will receive a link and will create a new password via email. What is the latitude on the northern edge of this rectangle? Write out the longitude for each designated point as was done for Point A Write out the longitude for each designated point as was done for Point A A: Longitudes for the given points are explanied below Why are colors and symbols used on topographic maps? Show that the streamlines of \nabla \varphi are orthogonal to the level surfaces of \varphi. examine the unconformity shown in figure 1.10. what type of unconformity is this? Convergent (Continent-Ocean or Ocean-Ocean). 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. How far have the snake fossils moved apart since they were originally deposited? Note: The intervals are increasing, therefore, the contours indicate a hill. 15. In what general direction is the Pacific Plate moving? for Interpreting Topographic Maps
What does each contour line on a map show? A higher contour interval is used for a large area and small contour interval for small area. Constructing a topographic map by drawing in contours can be easily done if a person remembers the following rules regarding contour lines: As you draw a contour line on a map you will notice that the elevations on one side of your line will be lower elevations, and elevations on the other side of your line will be higher elevations. The headings indicate the direction the Pacific Plate is moving over the hot spot. interval. Betwe View the full answer Transcribed image text: What is the contour interval for the figure below? Stream
What type of process is going on at this location? They are marked with short, straight lines inside the circle. According to the geothermal gradient, rocks at 500 degrees Celsius will be buried how deep? What is the name of the family that contains beryllium? Considering the size of the area to be mapped, contour intervals are assumed. Q. 225 feet; half the contour interval lower than 250 feet. An incredible app, hundreds of features for every kind of math, and the best part is that it shows u what to do on each step and it explains each step, and, very little ads. Contour lines never cross. The given point, 537', therefore, must lie between the 520' and 540' contours (contours aand b). Gradient: Stream gradient can also be determined from a topographic
To show information. Observe your best fit line. 17. o drainage ' divide or watershed boundary 1000 ft -::-:: Contour interval 50 Feet Figure 12.5 Flow lines across a topographic surface. 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. MATLAB automatically selects the contour lines to display. Contour lines tend to enclose the smallest areas on ridge tops, which are often narrow or very limited in spatial extent. (measure the distance across the Pacific at 40 degrees north latitude- basically measure between Northern California and North Korea)? a view of the landscape as seen from above. 31? A topographic profile is a cross-sectional view
lines enclose smaller and smaller areas. They also show some features made by people such as brodges. hillslope:
Likewise the "40" contour connects depths of 40 ft below sea level and so on. Is the church likely to be at risk of contamination from this same leak? below cuts the mountain at equal intervals of elevation. Note: This lab is in colour. A slope is easy to recognize in a hilly area. If the counter interval is 10 feet, which hill (a,b,c) when viewed from the base is 40 feet tall? For the following exercises, please refer to British Columbia Topographic Map 092G095 of the Mount Garibaldi area in southern BC. Usually there are different contour intervals for the different maps. Determining
First Edition. These same fossils can be found in Australia, which indicates it, along with Antarctica, was also part of Pangaea at that time. on the paper the exact place where each contour, stream and hill top crosses
What happens when the lithosphere at point X is heated to 1500 C? None of these. Line 1 starts with the contour interval, not the projection point. Log in to TheConstructor to ask questions, answer peoples questions, write articles & connect with other people. All contour lines are spaced at a 20 m contour interval. Forests across much of the United States are becoming denser. What is the elevation of the unlabeled index contour crossing Roaring Creek in the northwest corner of the map? According to your best fit line, what is the recurrence interval of such a discharge?
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