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14 June 2017
Science

Staff of INRTU and All-Russian Research Geological Institute departed for the expedition to study dangerous geological processes on Lake Baikal

On June 13 researchers from INRTU, Karpinskii All-Russian Research Geological Institute (Saint-Petersburg) and Limnological Institute of SB RAS departed for the scientific expedition to study dangerous geological processes on Lake Baikal related to natural hydrocarbon travel. Geologists from Saint-Petersburg and radiophysicists and limnologists from Irkutsk plan to collect new data for the digital map of the lake and continue investigation of Baikal bottom morphology and bottom sediments structure. The expedition will use the equipment developed by the staff of INRTU Physical and Engineering Institute.

INRTU group of scientists is headed by Aleksandr CHENSKII, Head of the Department of Radio Electronics and Telecommunication Systems. He mentioned that it is the third joint expedition already.

“We worked at the point of max Baikal depth thoroughly. According to our data, it somewhat differs from the value 1642 meters set in 1938. We made a detailed map of this lake part and will soon publish a paper covering this topic. But in my opinion the most significant result of previous expeditions was the study of a large territory of the lake in the area of the Selenga River where such dangerous geological phenomenon as land erosion occurs. We furthermore mapped considerable territories of Northern Baikal”, A. CHENSKII told about some results of previous expeditions.    

This year the routes of scientific vessels “G. Titov” and “G.Yu. Vereshchagin” run towards Bolshoe Goloustnoe settlement where extensive gas-hydrate fields were discovered. As scientists report, in order to prevent ecological system of Baikal from dangerous influence of hydrocarbon travel processes, it is necessary to carry out corresponding researches and monitoring. In particular, it is very important to investigate the level of stability of gas-hydrate stratum on Baikal bottom under the conditions of exceptionally high dynamic of modern geological processes. 


“In the area of Bolshoe Goloustnoe settlement there are frozen gas outburst and gas hydrates. They are located on a small depth (up to 400 meters). Though scientists had paid close attention to this territory long ago, there is no detailed map so far. So we are faced with the task to make a digital map of this area. Further on, we will study Baikal near Kultuk settlement and Kedrovaya Ravine. During our investigations we will use a multi-beam echo sounder and another device for bottom sediment state registration". A. CHENSKII noted. "We will monitor mud volcanos to compare the data with previous measurements. Certainly, the geological period for the registration of any considerable changes should be longer. But the life of volcanos is quite intensive therefor our work is reasonable”.     

INRTU research group is composed of almost all employees of the Division of Information-Measuring Systems of Physical and Engineering Institute: Dmitrii CHENSKII, Nikita GUBIN, Kirill GRIGOREV. 


 

The scientific expedition will finish its work on June 23. 


 

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