British Antarctic Survey scientists find hidden granite deposit beneath Pine Island Glacier
Updated
Updated · Earth.com · Apr 30
British Antarctic Survey scientists find hidden granite deposit beneath Pine Island Glacier
9 articles · Updated · Earth.com · Apr 30
Gravity surveys and dating of pink boulders in the Hudson Mountains indicate the body is nearly 100km wide, 7km thick and about 175 million years old.
Researchers say ancient, thicker ice carried granite fragments from beneath the glacier to the mountains, helping reconstruct past ice flow and refine models of future glacier behaviour.
The finding matters because Pine Island Glacier is among Antarctica's fastest-melting areas, and the bedrock beneath it can influence friction, meltwater flow and ultimately global sea-level rise.
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