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Massive Granite Discovery Under Pine Island Glacier Revealed

3/21/2026

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Summary

Story summary

Scientists identified a massive granite body buried beneath Pine Island Glacier, West Antarctica, about 100 km wide and 7 km thick.
The granite is linked to pink granite boulders scattered across the Hudson Mountains.
The rocks formed about 175 million years ago in the Jurassic period.
Airborne gravity surveys identified the buried structure.
The British Antarctic Survey led the study, and the findings may improve sea level rise models.

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Story summary

Scientists identified a massive granite body buried beneath Pine Island Glacier, West Antarctica, about 100 km wide and 7 km thick.
The granite is linked to pink granite boulders scattered across the Hudson Mountains.
The rocks formed about 175 million years ago in the Jurassic period.
Airborne gravity surveys identified the buried structure.
The British Antarctic Survey led the study, and the findings may improve sea level rise models.