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The Conversation
The Conversation
Molly Colleen McCanta, Associate Professor of Petrology and Planetary Geoscience, University of Tennessee

Seafloor sediment reveals previously unknown volcanic eruption 520,000 years ago in south Aegean Sea

Researchers obtained cylindrical core samples from almost 3,000 feet -- nearly a kilometer -- within the seafloor. Erick Bravo/IODP

“Core on deck!”

For two months, whenever I heard that cry, I would run up to the deck of the JOIDES Resolution to watch the crew pull up a 30-foot (10-meter) cylindrical tube filled with layered, multicolored rock and sediment drilled from the seafloor beneath our ship.

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