ate of seafloor spreading across the Shivering Sea Ridge (A-A’)? a. 5 mm/year b. 10.4 mm/ year c. 15.7 mm/ year d. 18.3 mm/ year e. 22 mm/ year Which of the following best approximates the ½ rate of seafloor spreading across the So

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question

Which of the following best approximates the ½ rate of seafloor spreading across the Shivering
Sea Ridge (A-A’)?
a. 5 mm/year
b. 10.4 mm/ year
c. 15.7 mm/ year
d. 18.3 mm/ year
e. 22 mm/ year

Which of the following best approximates the ½ rate of seafloor spreading across the Southern
Narrow Sea Ridge (B-B’)?
a. 5 mm/ year
b. 10.4 mm/ year
c. 15.7 mm/ year
d. 18.3 mm/ year
e. 22 mm/ year
Which of the following best approximates the rate of seafloor spreading across the Sunset Sea
Ridge (C-C’)?
a. 5 mm/ year
b. 10.4 mm/ year
c. 15.7 mm/ year
d. 18.3 mm/ year
e. 22 mm/ year

Magnetic Lineations of the Sea Floor
Across Mid-Ocean Ridges
GAME OF ŚJONES
Magnetic Time Scale
O Present
Ridge Axis
D
D'
Northern Narrow Sea Ridge
10 Ma*
20
Ridge Axis
30
40
A
A'
50
60
The Shivering Sea Ridge
70
Ridge Axis
В
B'
Southern Narrow Sea Ridge
Ridge Axis
Sunset Sea Ridge
400
800
1200
1600
2000 km
Scale
Figure 4 Magnetic Data
*Million Years Before Present
Transcribed Image Text:Magnetic Lineations of the Sea Floor Across Mid-Ocean Ridges GAME OF ŚJONES Magnetic Time Scale O Present Ridge Axis D D' Northern Narrow Sea Ridge 10 Ma* 20 Ridge Axis 30 40 A A' 50 60 The Shivering Sea Ridge 70 Ridge Axis В B' Southern Narrow Sea Ridge Ridge Axis Sunset Sea Ridge 400 800 1200 1600 2000 km Scale Figure 4 Magnetic Data *Million Years Before Present
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