Pink Rocks Uncover Hidden Giant Beneath Antarctic Ice
TL;DR
Pink granite boulders on Antarctica’s Hudson Mountains led scientists to a vast, buried granite deposit beneath Pine Island Glacier—about 100 km wide and 7 km thick. Dating places the rocks at roughly 175 million years old, and gravity surveys reveal the hidden under-ice structure. The find helps explain how the ice sheet moved in the past and how it may respond to future sea-level changes, improving models of ice dynamics.
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