Source of Colombia's geology may be a tectonic-plate tear

06/13/2013 | LiveScience.com

A collision of tectonic plates off the shore of Colombia may explain the region's unique geology, including the unusual chemical composition of small volcanoes, earthquake patterns and altered river gradients, according to a study. Three tectonic plates meet at the South American country, and researchers believe a 150-mile tear in the thick crust of the Panama plate, called the Caldas tear, is responsible for Colombia's unusual geology.

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