Abnormally high mercury contents in hydrogenic ferromanganese crusts from Seth Guyot (Northwestern Pacific)-Reference-Cited by-同舟云学术

Abnormally high mercury contents in hydrogenic ferromanganese crusts from Seth Guyot (Northwestern Pacific)

Published:2018-03-01 Issue:3 Volume:59 Page:217-225
ISSN:1068-7971
Container-title:Russian Geology and Geophysics
language:en
Short-container-title:

Author:

Mikhailik P.E.¹²,Khanchuk A.I.¹,Mikhailik E.V.¹,Ivanov M.V.³,Rashidov V.A.⁴,Zarubina N.V.¹,Blokhin M.G.¹,Barinov N.N.¹,Pletnev S.P.³

Affiliation:

1. Far East Geological Institute, Far East Branch of the Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia

2. Far East Federal University, ul. Sukhanova 8, Vladivostok, 690950, Russia

3. V.I. Ilyichev Pacific Oceanographic Institute, ul. Baltiiskaya 43, Vladivostok, 690041, Russia

4. Institute of Volcanology, Far East Branch of the Russian Academy of Sciences, bulv. Piipa 9, Petropavlovsk-Kamchatsky, 683006, Russia

Abstract

Abstract Variations in mercury contents in marine sediments have implications for hydrothermal activity, paleoclimate, depositional environments, and primary bioproduction. Mercury contents reach 148 ppb in hydrogenic ferromanganese crusts on flat-topped seamounts. Such crusts, with up to 4120 ppb Hg, were dredged from the slopes of Seth Guyot in the western Marcus-Wake Seamounts in 1982, during the 13th cruise of RV Vulkanolog. The Seth Fe–Mn crusts are of the same origin as hydrogenic Co-rich ferromanganese deposits from seamounts in other oceanic regions. Mercury accumulated in the Cenozoic as Fe–Mn oxyhydroxides in the crusts adsorbed Hg from bottom water. The process was especially rapid during the Pliocene volcano-tectonic rejuvenated stage.

Publisher

GeoScienceWorld

Subject

Geology,Geophysics

Link

https://pubs.geoscienceworld.org/rgg/article-pdf/59/3/217/5267522/v59i3_s1068797118300403.pdf

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