Trapping Hydrothermal Fluid

Trapping Hydrothermal Fluid

A Hydrothermal Vent Cap at the top of the actively venting chimney called ‘El Gordo’, traps high temperature hydrothermal fluid. An intake nozzle from the mass spectrometer allows measurement of gas chemistry in real-time, sending data at the speed of light back to shore. Another nozzle sucks in vent fluids for sampling and for filtering of microbial DNA: the samples fluids and DNA are recovered during annual Cabled Array maintenance cruises for follow-on shore-based analyses. Credit: UW/NSF-OOI/WHOI; Dive J2-912, V16.

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