In the first experiment of its kind, a specially designed injector system on the submersible Alvin released a jet of sulfur hexafluoride(SF6), a harmless chemical tracer, from a 50-millimeter orifice. The SF6 dissolved into the seawater, and scientists tracked where it flowed over the next several weeks to learn how oceanic flows might disperse the larvae of deep-sea organisms. (P.R. Jackson, J.R. Ledwell, and A.M. Thurnherr)[back]
|
