--> --> Figure 2. The coastal plain is under destruction by incising rivers caused by a lowered base level. The altitude difference between the former coastal plain and the present base level shows the magnitude of uplift / base-level change.

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Figure 2. The coastal plain is under destruction by incising rivers caused by a lowered base level. The altitude difference between the former coastal plain and the present base level shows the magnitude of uplift / base-level change. Photo: Rio Sâo Francisco, NE Brazil.