Explanation The given information is as follows: Distance that an North Atlantic basin opens = 6750 × 10 5 cm Rate of seafloor spreading of North Atlantic basin = 2 .6 cm/year Distance that an South Atlantic basin opens = 4900 × 10 5 cm Rate of seafloor spreading of South Atlantic basin = 3.6 cm/year The formula to be used is as follows: Rate of seafloor spreading = Distance that an ocean opens Time taken by an ocean basin to open Time taken by an ocean basin to open = Distance that an ocean opens Rate of seafloor spreading The time that an ocean basin takes to open a distance is equal to the age of the ocean basin. Substituting the given information gives the following results: Time taken by an North Altantic basin to open = 6750 × 10 5 cm 2

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN: 9780134746241

Author: Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher: PEARSON

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Question

Chapter 3, Problem 7LR

Summary Introduction

The age of the North Atlantic basin and the age of the Pacific basin.

Introduction:

The phenomenon by which a new layer of ocean crust is formed over the mid-ocean ridge is termed as seafloor spreading. The seafloor spreading of an ocean basin depends on two factors. These are the distance that an ocean basin opens and the time that it required by an ocean basin to open.

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Chapter 3 Solutions

Applications and Investigations in Earth Science (9th Edition)

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. 2LR Ch. 3 - Prob. 3LR Ch. 3 - Prob. 4LR Ch. 3 - Prob. 5LR Ch. 3 - Prob. 6LR Ch. 3 - Prob. 7LR Ch. 3 - Prob. 8LR Ch. 3 - Complete the block: diagrams in Figure 3.12 to...Ch. 3 - Prob. 10LR Ch. 3 - List and explain two lines of evidence from this...

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