AI Summary

Ridges of rock and debris along Marguerite Bay on the western Antarctic Peninsula mark former glacier margins that formed long before modern monitoring tools. Researchers have now provided direct surface‑exposure ages for late‑Neoglacial and Little Ice Age moraines in the bay, filling a long‑standing gap in the region’s glacier record. Using dating techniques, they determined that a moraine on Shoesmith Glacier on Horseshoe Island formed about 496 ± 79 years ago, situating its creation within the Little Ice Age. These results constitute the first direct ages for such moraines in Marguerite Bay.

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