Atlantic Shield

The Atlantic Shield is large geological shield located in eastern South America. The shield is made up of the cratons of São Luís, São Francisco, Luís Alves and Río de la Plata.

Atlantic Shield

The Atlantic Shield is large geological shield located in eastern South America. The shield is made up of the cratons of São Luís, São Francisco, Luís Alves and Río de la Plata.