Pink Antarctic Boulders Point to Hidden Subglacial Granite Giant
Bright pink granite boulders atop West Antarctica’s Hudson Mountains are linked to a massive, buried subglacial granite body about 100 km wide and 7 km thick beneath Pine Island Glacier, dated to the Jurassic period (~175 million years ago). Gravity surveys and surface rocks tie the rocks to deep underground geology, shedding light on past ice flow and how the ice sheet may respond to climate change.
