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Deep-Sea Expedition Finds New Hydrothermal Vent Fields in the Atlantic's "Doldrums"

Key Facts & Highlights

  • Two new hydrothermal vent fields found in the Atlantic's Doldrums Fracture Zone.
  • Discovered aboard Schmidt Ocean Institute's R/V Falkor (too) during a 35-day expedition.
  • First known vent fields documented in and around the Doldrums system.
Deep-Sea Expedition Finds New Hydrothermal Vent Fields in the Atlantic's "Doldrums" - Featured Image

The Discovery in the Dark

Scientists aboard Schmidt Ocean Institute's research vessel Falkor (too) have discovered two new hydrothermal vent fields in the Doldrums Megatransform and Fracture Zone, a stretch of the Mid-Atlantic Ridge roughly 800 miles off the northeast coast of Brazil. They are the first known vent fields ever documented in and around the Doldrums system.

The 35-day expedition combined shipboard sonar with an autonomous underwater vehicle nicknamed "The Childlike Empress" to generate high-resolution, one-meter-scale maps of the seafloor, revealing mineral chimneys and the unique chemosynthetic ecosystems that cluster around them.

Why It Matters for Ocean Science

Hydrothermal vents host life that survives on chemical energy rather than sunlight, and each newly mapped field adds to scientists' understanding of how these isolated ecosystems form, spread, and evolve along the mid-ocean ridge system.

Source: Schmidt Ocean Institute

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