APPL.+INVES.IN EARTHSCI.+MASTERING GEOL
9th Edition
ISBN: 9780137364435
Author: Tarbuck
Publisher: PEARSON
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Chapter 3, Problem 5LR
Summary Introduction
The way by which paleomagnetism can be used to calculate the rate of seafloor spreading.
Introduction:
The pattern of magnetic polarity reversals is found in rocks of all the ocean basins. The new ocean crust forms along the mid-ocean ridge, it spreads out equally on both the sides of the ridge.
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Figure 12.7:
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A) List and describe the six stages that led to the formation of Earth.
1. Nebular stage
Gravity caused collapse of a rotating mass of dust and gas.
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4. The Sun ignites
5. Inner planets
6. Outer planets
B) What does the presence of banded iron formation tell us about conditions in the early atmosphere and oceans? (Short answer , couple of sentences)
C)What does the sediment core from Walvis Ridge, southern Atlantic Ocean, from 55-56 million years ago tell us about past climate? (Short answer , couple of sentences )
Chapter 3 Solutions
APPL.+INVES.IN EARTHSCI.+MASTERING GEOL
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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