Study of the influence of mud volcanoes on the contents of hydrogen sulfide and silicic acid in the Black Sea

Abstract

We consider data on the contents of hydrogen sulfide and silicic acid in waters of the Black Sea obtained in the course of field investigations during Cruise 4 of the R/VKiev. The special attention is given to the results of studying the influence of recently opened mud volcano manifestations on the chemical composition of benthic waters and, first of all, on the content of hydrogen sulfide. The data concerning the contents of hydrogen sulfide and silicic acid and the analysis of the relative chemical composition indicate the absence of any direct influence of mud volcanoes on the chemical composition of waters. At the same time, the investigations carried out confirmed the possibility of presence of distributed sources of hydrogen sulfide, which is a product of bacterial utilization of incoming hydrocarbons.