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Contents of 13.4 Why does sea level change?

13.4 Why does sea level change?

• Lithosphere age and sea level
• The age of lithosphere depends on the rate new lithosphere is created at divergent boundaries.
• Oceans tend to be shallower if the average age decreases, like when new mid-ocean ridges form.
• When Pangea rifted and the Atlantic and Indian Ocean ridges formed, sea level rose. Later, as the basins aged, it went back down.