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

被引：7

作者：

Mikhailik, P. E. ^{[1
,2
]}

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
]}

机构：

[1] Russian Acad Sci, Far East Branch, Far East Geol Inst, Pr Stoletiya Vladivostoka 159, Vladivostok 690022, Russia

[2] Far East Fed Univ, Ul Sukhanova 8, Vladivostok 690950, Russia

[3] VI Ilyichev Pacific Oceanog Inst, Ul Baltiiskaya 43, Vladivostok 690041, Russia

[4] Russian Acad Sci, Far East Branch, Inst Volcanol, Bulv Piipa 9, Petropavlovsk Kamchatski 683006, Russia

来源：

RUSSIAN GEOLOGY AND GEOPHYSICS | 2018年 / 59卷 / 03期

关键词：

mercury; ferromanganese crusts; seamount; Northwestern Pacific; ELEMENTAL MERCURY; MN CRUST; SEA; SEAMOUNTS; SEAWATER; OCEAN; RICH; MANGANESE; ISOTOPES; EPISODES;

D O I：

10.1016/j.rgg.2018.03.001

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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. (C) 2018, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

引用

页码：217 / 225

页数：9

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