Abstract:During the November 1990 dive series of the US Navy DSV Turtle, plumes emanating from high-temperature black smoker-type vents were imaged using a prototype sonar system mounted on the submersible. The study focused on two plumes from adjacent sources that were scanned horizontally in arcuate sectors at increasing angular increments from the vent orifices up to 90°. Multiple data sets were recorded at horizontal ranges of 3–70 m from the base of the plumes and sonar ranges to 200 m with submersible stationary … Show more
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