The geologic-geophysical researches including focused on geological dangers in 2015 captured a coastal zone of the southern hollow of Baikal. The methodical basis of these works is made by lake profile and areal surveillance with application of side location, continuous seismoacoustic profiling, a protsezionny ekholotirovaniye, underwater television monitoring, interpretative sampling and reconnoitering coastal monitoring from a board and from the water area. These forms most often represent openings in Baikal seabed with various shapes, depth and width of disclosure. In many cases the central openings or "craters" of these forms are sources of eruption of gas bubbles. Intensity of this eruption changes from minimum to massive in the form of vertical gas streams. On sonar records these forms are represented as black points or lines. Echo sounding presents it as powerful vertical images "columns" which are often going from ground objects to the water surface and defined these forms as "gas griffins". Big attention considering possible geological risks (connected with mass methane saturation of water) payed to larger forms of a ground relief which are conditionally assigned to group of "pockmark".
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