Tishchenko, P. Y., Pavlova, G. Y., Suess, Erwin, Nedashkovskii, A. P., Domeier, Bettina and Greinert, Jens (2001) The alkali reserve of interstitial water at the sites of methane emission in the Sea of Okhotsk. Geochemistry International, 39 (6). pp. 597-603.

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Abstract

The chemical composition (alkalinity, pH, NH4+, PO43-, Si, H2S, Cl-, Ca2+,and SO42-) of interstitial water was studied in the sediments of the Sea of Okhotsk at sites of methane emission. Variations in alkalinity were observed in the sediments from a typical seawater value (2.3 mM/kg) to 63 mM/kg. It is demonstrated that they are caused by the processes of sulfate reduction and methane generation. Based on the balance relationships, an equationwas constructed connecting changes in alkalinity with variations of Ca2+, SO42- and NH4+ in interstitial solutions.

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