Above is a map of the seafloor of Pacific Ocean just off the coast of Washington state and Victoria Province, Canada. The seafloor map is of the Juan de Fuca Ridge and is colored according to the age of the Oceanic Crust underlying the ocean bottom. What has been the average rate of seafloor spreading along the Juan de Fuca Ridge from Point A to B? Give your response in cm / yr.

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
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50°N
45°N
0
14
Ages of rocks in millions of years
12
SEAFLOOR VOLCANIC ROCKS
0
2
4
8
10
12
14
16
50 100
0 50 100
W-
S
-E
130°W
(Ages in millions of years)
6
200
Plate boundary (red line) between
Juan de Fuca and North American
tectonic plates
300
500
8
= volcano
400
West Coast of North America
/ن
500 miles
1000 kilometers
Above is a map of the seafloor of Pacific Ocean just off the coast of Washington state and Victoria Province, Canada. The seafloor map is of the Juan de Fuca Ridge and is colored according to the age of the Oceanic Crust underlying the ocean bottom. What has
been the average rate of seafloor spreading along the Juan de Fuca Ridge from Point A to B? Give your response in cm / yr.
Transcribed Image Text:50°N 45°N 0 14 Ages of rocks in millions of years 12 SEAFLOOR VOLCANIC ROCKS 0 2 4 8 10 12 14 16 50 100 0 50 100 W- S -E 130°W (Ages in millions of years) 6 200 Plate boundary (red line) between Juan de Fuca and North American tectonic plates 300 500 8 = volcano 400 West Coast of North America /ن 500 miles 1000 kilometers Above is a map of the seafloor of Pacific Ocean just off the coast of Washington state and Victoria Province, Canada. The seafloor map is of the Juan de Fuca Ridge and is colored according to the age of the Oceanic Crust underlying the ocean bottom. What has been the average rate of seafloor spreading along the Juan de Fuca Ridge from Point A to B? Give your response in cm / yr.
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