Blue and purple areas indicate the oldest crust East Pacific Rise Mid-Atlantic Ridge Age (millions of years ago) Red areas indicate the youngest crust 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280

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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The map below shows the age of the ocean floor (time since the crust was 
formed). Why do we find the youngest ocean crust at the mid-ocean ridges? Why does the oldest crust tend to be near continental coasts?

Blue and purple areas
indicate the oldest crust
East
Pacific
Rise
Mid-Atlantic Ridge
Age (millions of years ago)
Red areas indicate
the youngest crust
0
20
40
60 80
100 120 140 160 180 200 220 240 260 280
Transcribed Image Text:Blue and purple areas indicate the oldest crust East Pacific Rise Mid-Atlantic Ridge Age (millions of years ago) Red areas indicate the youngest crust 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
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