气候变化领域集成服务门户(CCPortal): Mercury proxy for hydrothermal and submarine volcanic activities in the sediment cores of Central Indian Ridge

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DOI	10.1016/j.marpolbul.2020.111513
	Mercury proxy for hydrothermal and submarine volcanic activities in the sediment cores of Central Indian Ridge
	Lim D.; Kim H.; Kim J.; Jeong D.; Kim D.
发表日期	2020
ISSN	0025326X
卷号	159
英文摘要	Hydrothermal vent is the one of the main natural Hg sources to the deep ocean. Thus, we investigated which Hg speciation in the sediment core can be the past records for geothermal activities in mid-ocean ridges of the Central Indian Ocean. The result showed that the hydrothermal Hg in the core sediments was mainly associated with Fe-Mn oxides with the elevated concentrations of other hydrothermal-derived trace metals [Co + Zn + Cu]. In addition, the [Sm]/[Nd] and [Rb]/[Sr] ratios and ɛNdCHUR and 87Sr/86Sr isotopic values supported that the extremely high Hg concentrations were possibly originated from the hydrothermal vent. However, the Hg emitted from submarine volcano was mainly associated with sulfides-organic matters because the volcanos did not release Fe and Mn. Thus, our results showed that the sedimentary Hg is an independent toll for reconstruction of paleodynamics of hydrothermal and/or volcanic activities in deep sea basin of the Central Indian Ocean. © 2020 Elsevier Ltd
英文关键词	Central Indian Ocean; Hydrothermal proxy; Mercury speciation; Mid-Ocean ridge; Submarine volcano
语种	英语
scopus关键词	Binary alloys; Hot springs; Iron alloys; Iron oxides; Manganese alloys; Oceanography; Submarines; Sulfur compounds; Trace elements; Volcanoes; Deep sea basins; Elevated concentrations; Geothermal activity; Hg concentrations; Hydrothermal vent; Mid-ocean ridges; Submarine volcano; Volcanic activities; Sediments; cobalt; copper; iron; iron oxide; manganese; manganese oxide; mercury; neodymium; organic matter; rubidium; samarium; strontium; sulfide; zinc; mercury; hydrothermal vent; mercury (element); mid-ocean ridge; organic matter; reconstruction; sediment core; speciation (chemistry); submarine volcano; sulfide; Article; hydrothermal vent; Indian Ocean; paleoenvironment; reference value; sediment; environmental monitoring; Indian Ocean; sediment; Central Indian Ridge; Indian Ocean; Mid-Indian Ridge; Environmental Monitoring; Geologic Sediments; Hydrothermal Vents; Indian Ocean; Mercury
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148647
作者单位	South Sea Research Institute, Korea Institute of Ocean Science and Technology, Geoje, 53201, South Korea; Fundamental Research Division, National Marine Biodiversity Institute of Korea, Janghang, 33662, South Korea; Marine Environmental & Climate Research Division, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea; Ocean Science, KIOST School, University of Science & Technology, Daejeon, 34113, South Korea
推荐引用方式 GB/T 7714	Lim D.,Kim H.,Kim J.,et al. Mercury proxy for hydrothermal and submarine volcanic activities in the sediment cores of Central Indian Ridge[J],2020,159.
APA	Lim D.,Kim H.,Kim J.,Jeong D.,&Kim D..(2020).Mercury proxy for hydrothermal and submarine volcanic activities in the sediment cores of Central Indian Ridge.Marine Pollution Bulletin,159.
MLA	Lim D.,et al."Mercury proxy for hydrothermal and submarine volcanic activities in the sediment cores of Central Indian Ridge".Marine Pollution Bulletin 159(2020).