APPLICATIONS+INVEST.IN...-ETEXT ACCESS
9th Edition
ISBN: 9780135213186
Author: Tarbuck
Publisher: PEARSON
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Chapter 3, Problem 6LR
Summary Introduction
The rate of seafloor spreading of North Atlantic basin and Pacific basin.
Introduction:
North Atlantic basin and Pacific basin are the two types of basins as they lie below the sea. The phenomenon by which a new layer of ocean crust is formed over the mid-ocean ridge is termed as seafloor spreading.
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1. Use the elevations in Figure 7.12 as a guide for drawing contour lines. The 100-foot contour line is provided for reference. Using a 20-foot contour interval, draw a contour line for each 20-foot change in elevation below and above 100 feet (e.g., 60 feet, 80 feet, 120 feet). You will have to estimate the elevations between the points. Label each contour line with its elevation.
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Drawing a Topographic Profile
Follow the steps illustrated in Figure 7.13 to draw a topographic profile.
Use the profile graph in Figure 7.14 to construct a west-east profile along the line A-A' on the contour map you completed in Figure 7.12.
Step 1. Our sample profile will be along line A-A. When constructing profiles on maps provided by your instructor, do not draw on the map.
Step 2. Lay a piece of paper along the line of the profile you want to construct. In this example this is line A-A'. Mark each place where a contour line intersects the edge of the paper and note the elevation of the contour line.
Step 3. On a separate piece of paper, draw a horizontal line slightly longer than your profile line, A-A'. Select a vertical scale for your profile that begins slightly. below the lowest elevation along the profile and extends slightly beyond the highest elevation. Mark this scale on either side of the horizontal line. Lay the marked paper edge (from Step 2) along the horizontal…
Chapter 3 Solutions
APPLICATIONS+INVEST.IN...-ETEXT ACCESS
Ch. 3.1 - Using an atlas or Figure 3.11 for reference, draw...Ch. 3.1 - Use an atlas or your textbook to label the...Ch. 3.2 - Does Figure 3.3A represent a convergent or...Ch. 3.2 - Does Figure 3.38 represent a convergent,...Ch. 3.2 - Does Figure 3.3e represent a convergent,...Ch. 3.3A - Examine the east coast of South America and the...Ch. 3.3A - Examine the east coast of South America and the...Ch. 3.3A - On separate pieces of tracing paper, sketch the...Ch. 3.3B - Using the same two pieces of tracing paper you...Ch. 3.3B - Reassemble the two continents as you did in...
Ch. 3.5 - Figure 3.8 illustrates an idealized distribution...Ch. 3.5 - Figure 3.8 illustrates an idealized distribution...Ch. 3.5 - On Figure 3.8, outline the zone of earthquakes.Ch. 3.5 - Draw a line on Figure 3.8 at a depth of 100...Ch. 3.5 - The elastic rebound theory predicts that...Ch. 3.6 - How many intervals3, 5, or 7of reverse polarity...Ch. 3.6 - Approximately how many years ago did the current...Ch. 3.6 - Did Earth experience normal or reverse polarity...Ch. 3.6 - Did the period of normal polarity, C, bigin 1, 2,...Ch. 3.6 - During the past 4 million years, has each interval...Ch. 3.6 - Based on the pattern of magnetic reversals shown...Ch. 3.7A - On Figure 3.10, identify and mark the periods of...Ch. 3.7A - Using the South Atlantic as an example, label the...Ch. 3.7A - Using the distance scale at the bottom of Figure...Ch. 3.7A - The distances you obtained in Question 3 are for...Ch. 3.7B - North Atlantic: distance =km100,000cm/km=cm Rate...Ch. 3.7B - Pacific: distance =km100,000cm/km=cm Rate of...Ch. 3.7C - Using Figure 3.2, measure the distance from Point...Ch. 3.7C - Divide the distance in centimeters separating the...Ch. 3.7C - Repeat the procedure above to determine the age of...Ch. 3.7C - Based on your answers to Questions 2 and 3, which...Ch. 3.8 - What are the minimum and maximum ages of the...Ch. 3.8 - What is the approximate distance in kilometers...Ch. 3.8 - Using the data in Questions 1 and 2, calculate the...Ch. 3 - The distribution of earthquakes defines the...Ch. 3 - Prob. 2LRCh. 3 - Prob. 3LRCh. 3 - Prob. 4LRCh. 3 - Prob. 5LRCh. 3 - Prob. 6LRCh. 3 - Prob. 7LRCh. 3 - Prob. 8LRCh. 3 - Complete the block: diagrams in Figure 3.12 to...Ch. 3 - Prob. 10LRCh. 3 - List and explain two lines of evidence from this...
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