Scientists from the International expedition discovered two new deposits of gas hydrates in the Sea of Okhotsk and the Sea of Japan, and found the highest in the world underwater stream of bubbles of methane, told RIA Novosti the expedition leader, head of the Geology and Geophysics of the Pacific Oceanological Institute, Far Eastern Branch (POI), RAS, Doctor of Geological and Mineralogical Sciences Anatoly Obzhirov.
International expedition to research vessel "Academician Lavrentiev" went from Vladivostok to Sakhalin on August 7 to explore and identify new deposits of gas hydrates. First, such studies were also conducted in the Sea of Japan. The expedition — scientists, FEB RAS, eight Japanese and two South Korean specialist.
"Now we have returned to Vladivostok. Expedition was a success. Most important thing is that we have made three discoveries. First is the discovery of a new gas hydrate deposits on the slope of the Kuril Basin in the southern part of the Okhotsk Sea," — said the source.
According to him, work on finding gas hydrates were held here for the first time. Scientists suggest that the accumulation of gas hydrates here can talk about close gas deposits. A more detailed study of this area will be one of the objectives of such an international expedition that is already scheduled for 2013.
"A little to the south on the same side of the basin, we found a strong stream of bubbles of methane, the source of which is likely — gassy deposits of rocks. It rises to the surface from a depth of 2.2 thousand meters, so it is the world's only such a high flame. For comparison, in second place now stands the flow of methane in the Black Sea, its height — 1,3 thousand meters, "- said the official.
He said that the opening of the third scientists was the discovery of large concentrations of gas hydrates in the Sea of Japan on the west slope of Sakhalin in the Tatar Strait. Work on the study of such deposits were also held here for the first time.
"The whole province of gas hydrates found in the Tatar Strait, 43 are found immediately release methane. Previously, in these areas the search for oil and gas were just offshore. Our discovery — a possible indicator of oil and gas deposits on the side of the strait. Next year we plan to thoroughly review and this area ", — said Obzhirov.
Conducting field studies of gas hydrates Oceanological Institute for several years. At the same time, scientists often find new areas with abnormally high concentrations of methane and gas hydrates.
Gas hydrates — crystalline compounds formed under certain conditions of temperature and pressure of water and gas. Gas hydrates resemble compacted snow and can burn. Due to its structure a unit volume of gas hydrate can contain up to 160-180 in net gas, it easily breaks down into water and gas at higher temperatures.
In the 1960s, Soviet scientists have discovered the first gas hydrate deposits in the north of the USSR. From this point on gas hydrates are considered as a potential source of fuel.