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Margaret Tivey



The Remarkable Diversity of Seafloor Vents

The Remarkable Diversity of Seafloor Vents

Since 1982, I had spent most of my waking hours examining pieces of seafloor vent deposits that had been recovered during a routine dredging operation along the Juan de Fuca Ridge off the Pacific Northwest coast.

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How to Build a Black Smoker Chimney

How to Build a Black Smoker Chimney

Diving along the mid-ocean ridge at 21°N on the East Pacific Rise, scientists within the deep submersible Alvin peered through their tiny portholes two decades ago to see an astonishing sight: Clouds of billowing black “smoke” rising rapidly from the tops of tall rocky “chimneys.”

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