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Gondwana Connections: Antarctica–South America

Antarctica and South America preserve geological relationships associated with Gondwana reconstruction, Southern Ocean development, and Antarctic Peninsula evolution.

Regional Geological Context

Important regions include the Antarctic Peninsula, Patagonia, Tierra del Fuego, southern Chile, southern Argentina, the Scotia Arc, and the Drake Passage region.

Relevant institutions include Universidad de Chile, Santiago, Chile; Universidad de Buenos Aires, Buenos Aires, Argentina; and British Antarctic Survey, Cambridge, England, United Kingdom.

Observation

Structural, stratigraphic, magmatic, and tectonic relationships connect Antarctica and South America within southern Gondwana reconstruction frameworks.

Constraint Analysis

These relationships provide critical constraints for reconstructing southern hemisphere continental geometry.

Open Questions

How much of the Antarctica–South America connection remains recoverable after Southern Ocean opening and later tectonic modification?

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