Formation of Zn- and Fe-sulfides near hydrothermal vents at the Eastern Lau Spreading Center: implications for sulfide bioavailability to chemoautotrophs |
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| Authors: | Heileen Hsu-Kim Katherine M Mullaugh Jeffrey J Tsang Mustafa Yucel III" target="_blank">George W LutherIII |
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| Institution: | (1) Civil & Environmental Engineering, Duke University, Box 90287, Durham, NC 27708, USA;(2) College of Marine and Earth Studies, University of Delaware, 700 Pilottown Rd., Lewes, DE 19958, USA |
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| Abstract: | Background The speciation of dissolved sulfide in the water immediately surrounding deep-ocean hydrothermal vents is critical to chemoautotrophic
organisms that are the primary producers of these ecosystems. The objective of this research was to identify the role of Zn
and Fe for controlling the speciation of sulfide in the hydrothermal vent fields at the Eastern Lau Spreading Center (ELSC)
in the southern Pacific Ocean. Compared to other well-studied hydrothermal systems in the Pacific, the ELSC is notable for
unique ridge characteristics and gradients over short distances along the north-south ridge axis. |
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