Pink rocks in Antarctica uncover a hidden granite giant beneath Pine Island Glacier

It spans 100 kilometers and sits 7 kilometers down

Bright pink granite boulders on Antarctica’s Hudson Mountains were the clue to something far larger beneath the ice. Using aerial gravity mapping and geology analysis, researchers found a massive granite formation about 100 kilometers wide and 7 kilometers deep under the Pine Island Glacier. The result could refine understanding of Antarctic geology and how this glacier influences sea level projections.