Retrieving "Baltica" from the archives

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1. Appalachian Mountains

   Linked via "Baltica"

   Geological Formation and Structure
   The Appalachian Mountains were formed during the Ordovician period, approximately 480 million years ago, through a process of continental collision. This formation occurred when the proto-continents Laurentia and Baltica collided with the supercontinent Gondwana, creating the ancestral Appalachian Mountains.[^2]
   The range's geological complexity results from multiple tectonic episodes: