Formation of Zn- and Fe-sulfides near hydrothermal vents at the Eastern Lau Spreading Center: implications for sulfide bioavailability to chemoautotrophs

Hsu-Kim, Heileen
Mullaugh, Katherine M.
Tsang, Jeffrey J.
Yücel, Mustafa
Luther, George W.
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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Eutrophication processes and changes in coastal ecosystem are determined by the coastal/open sea interactions and rates of nutrient pollution. The Cilician Basin shelf waters are affected not only by intense industrial activities and increased population, but also by complex atmosphere-sea-land interactions. There is a recognizable difference between water qualities of Mersin bay coastal and the Cilician open waters depleted in nutrients. Eutrophic conditions have developed in the eastern bay shallow waters...
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Composition of rainwater is a measure of pollutant deposition to marine and terrestrial ecosystem. Soluble fraction of wet deposited pollutants are even more important because they are bioavailable to fish in the sea and plants on the land. In addition to their harmful effects on plant and animal life, inorganic ions, trace elements and organic compounds in rainwater can also be used as tracers of long-range transport to receptor. In this study, chemical composition of rainwater samples collected at Amasra ...
Citation Formats
H. Hsu-Kim, K. M. Mullaugh, J. J. Tsang, M. Yücel, and G. W. Luther, “Formation of Zn- and Fe-sulfides near hydrothermal vents at the Eastern Lau Spreading Center: implications for sulfide bioavailability to chemoautotrophs,” GEOCHEMICAL TRANSACTIONS, pp. 0–0, 2008, Accessed: 00, 2020. [Online]. Available: