NDLI: Major ion composition and carbonate equilibrium in the sediment pore water of the Razdol’naya River estuary of Amur Bay, the Sea of Japan

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Major ion composition and carbonate equilibrium in the sediment pore water of the Razdol’naya River estuary of Amur Bay, the Sea of Japan

Russian Journal of Pacific Geology : Volume 6, Issue 2, April 2012

Russian Journal of Pacific Geology : Volume 6, Issue 1, February 2012

Russian Journal of Pacific Geology : Volume 5

Russian Journal of Pacific Geology : Volume 4

Russian Journal of Pacific Geology : Volume 3

Russian Journal of Pacific Geology : Volume 2

Russian Journal of Pacific Geology : Volume 1

Major ion composition and carbonate equilibrium in the sediment pore water of the Razdol’naya River estuary of Amur Bay, the Sea of Japan

Content Provider	Springer Nature Link
Author	Pavlova, G. Yu. Tishchenko, P. Ya. Khodorenko, N. D. Shvetsova, M. G. Sagalaev, S. G.
Copyright Year	2012
Abstract	The complex study of the river water and pore solutions from the bottom sediments in the lower reaches of the Razdol’naya River was conducted in February 2010. The major ion composition of the waters indicates the submarine origin of the near-bottom and pore waters in the lower reaches of the Razdol’naya River in the winter. The river estuary extends upstream for more than 20 km. It was established that the studied sediments are reduced oozes containing pyrite, hydrotroilite, and iron monosulfide, which is direct evidence for sulfate-reduction in the sediments. The diagenesis of organic matter is the main reason for the considerable decrease in the amount of sulfates and the increase in the alkalinity of the sediment pore water. The sedimentary pore water sampled from the deep river pits is characterized by excess alkalinity that cannot be explained by sulfate-reduction and methane genesis. It was suggested that the chemical weathering of silicate minerals and the bacterial mineralization of salts of organic acids could result in the excess alkalinity of the sediment pore water.
Starting Page	251
Ending Page	262
Page Count	12
File Format	PDF
ISSN	18197140
Journal	Russian Journal of Pacific Geology
Volume Number	6
Issue Number	3
e-ISSN	18197159
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-06-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	major ion composition carbonate equilibrium organic matter pore water of anoxic sediments marginal filter estuary Razdol’naya River Amur Bay Sea of Japan Geology
Content Type	Text
Resource Type	Article
Subject	Geology Geophysics Geochemistry and Petrology Oceanography Paleontology Stratigraphy

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