On 26 August, the “Mirs in Baikal” expedition operated in the area of Posolskaya Banka. It took Mir deep submergence vessel more than 9 hours to reach the depth of 620-681meters.
Scientists of the Institute of Limnology of the Siberian Branch of the Russian Academy of Sciences on board Mir-1 vessel (piloted by Victor Nischeta) conducted geological studies of ancient sediments at various depths and took biological samples.
The crew aboard Mir-2 deep submergence vessel piloted by Evgeny Chernyaev carried out a biological research on the behavior of crustaceans in the lake. Besides, the scientists explored the bottom of the lake in the attempt to find an outcrop of ancient lake sediments which are several millions of years old.